AIRBAG(DIAGNOSTICS)
AB(diag)

AIRBAG(DIAGNOSTICS) > Basic Diagnostic Procedure
PROCEDURE

1. PERFORM CUSTOMER INTERVIEW.

Ask the customer when and how the trouble occurred using the interview check list. AIRBAG(DIAGNOSTICS)>Check List for Interview

Did you interview the customer?

2

Perform the interview, and 2

2. CHECK WARNING LIGHT.

Check whether the airbag warning light in the combination meter is lit.

Does the airbag warning light illuminate?

3

Check the illuminating pattern of the airbag warning light. If no fault is found, it is normal at present. AIRBAG(DIAGNOSTICS)>Warning Light Illumination Pattern

3. CHECK SUBARU SELECT MONITOR COMMUNICATION.
1.

Turn the ignition switch to OFF.

2.

Connect the Subaru Select Monitor to data link connector. COMMON(diag)>Data Link Connector

3.

Turn the ignition switch to ON and run the Subaru Select Monitor.

4.

Select [Airbag].

For detailed operation procedures, refer to “Help” of application.

Is communication possible?

4

Check the communication circuit. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure for Subaru Select Monitor Communication

4. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Record the DTC, time stamp and freeze frame data, and 5

Currently, it is normal.

5. PERFORM DIAGNOSIS.
1.

Perform the diagnosis for the displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

2.

Repair or replace the cause of trouble.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Repeat step 5 until DTC is not shown.

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Check List for Interview
CHECK

Inspect the following items regarding the vehicle’s state.

Airbag Check List for Interview Brought in on: Year    Month    Date
Customer’s name | Registration No. | Initial year of registration Year    Month    Date
Vehicle model | Frame number
Interviewer | Inspector | Engine type | Odometer reading
Customer specified content • • •
Date and time when the trouble occurred |  | Frequency of trouble occurrence | Always occurs Sometimes occurs (    times per day,    times per month)
Condition of trouble occurrence (How the trouble occurs) |  | Weather | Fine • Cloudy • Rainy • Snowy • Others (          )
Temperature | °C (°F) — °C (°F)
Road conditions |
Road condition |
Accessory installation condition |
Diagnostic trouble code |
Condition of warning light | Normal (After turning the ignition switch to ON, lit for approximately 6 seconds and goes off.) Remains ON Remains OFF
Time stamp |
Control module item number/Ver. |
Condition of trouble occurrence (How the trouble occurs) |
Vehicle bring-in history information |

AIRBAG(DIAGNOSTICS) > General Description
CAUTION
1. AIRBAG SYSTEM

Before performing diagnosis, refer to “CAUTION” in “General Description” in AIRBAG SYSTEM. AIRBAG SYSTEM>General Description>CAUTION

AIRBAG(DIAGNOSTICS) > General Description
INSPECTION

Before performing diagnostics, check the following item which might affect airbag system problems.

1. BASIC INSPECTION
1.

Check the battery. STARTING/CHARGING SYSTEMS(H4DO)>Battery>INSPECTION

2.

Check the main and other fuses, harnesses and connectors. Also check grounding.

AIRBAG(DIAGNOSTICS) > General Description
PREPARATION TOOL

To measure the voltage and resistance of airbag system component, be sure to use the specified test harness.

1. SPECIAL TOOL

- Subaru Select Monitor

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | — | SUBARU SELECT MONITOR 4 | Used for setting of each function and troubleshooting for electrical system. For detailed operation procedures, refer to “Help” of application.

- TEST HARNESS H

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299FA030 | TEST HARNESS H | Used when measuring voltage and resistance of seat position sensor.

- TEST HARNESS N

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299SA000 | TEST HARNESS N | Used when measuring voltage and resistance of driver’s airbag module, driver’s knee airbag module, rear seat pretensioner and curtain airbag module.

- TEST HARNESS Q

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299SA040 | TEST HARNESS Q | Used when measuring voltage and resistance of driver’s airbag module.

- AIRBAG RESISTOR

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299PA040 | AIRBAG RESISTOR | Used in replacement of each airbag module, because the resistance value is the same as that of each airbag module. Two STs are required for diagnosis of two-stage inflator type airbag module.

- TEST HARNESS AB

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299XA000 | TEST HARNESS AB | Used when measuring voltage and resistance of occupant detection system.

- TEST HARNESS AT

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299CA020 | TEST HARNESS AT | Used when measuring power supply and resistance of side airbag harness and passenger’s airbag module (variable vent hole). Two sets may be required.

- TEST HARNESS BA

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299FL010 (Newly adopted tool) | TEST HARNESS BA | Used for diagnosing seat position sensor.

- TEST HARNESS BB

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299FL020 | TEST HARNESS BB | Used when measuring voltage and resistance of occupant detection system.

- TEST HARNESS BC

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299FL030 | TEST HARNESS BC | Used when measuring voltage and resistance of occupant detection system. Two sets may be required.

- TEST HARNESS BD

  ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
  | 98299XC000 (Newly adopted tool) | TEST HARNESS BD | Used when measuring voltage and resistance of airbag control module.

2. GENERAL TOOL

TOOL NAME | REMARKS
Circuit tester | Used for measuring resistance, voltage and current.
Probe | Used when measuring voltage and resistance of passenger’s airbag module and airbag sensor.
DST-i | Used together with Subaru Select Monitor 4.

3. HOW TO USE PROBE

- Passenger’s airbag module

  Insert the probe into the harness hole, and contact it with the terminal.

  (A) | Cross section |  |  |  |
  (1) | Probe | (3) | Harness | (5) | Connection
  (2) | Connector (housing) | (4) | Terminal |  |

  - Do not insert the probe forcibly.

  - Be careful not to contact it to the connection (5) between the terminal and harness. (Harness will come off easily from connector.)

- Airbag sensor

  Insert the probe into the inspection hole to contact with the terminal.

  (A) | Cross section |  |  |  |
  (1) | Probe | (3) | Terminal | (5) | Harness
  (2) | Connector (housing) | (4) | Inspection hole |  |

  - Do not push the probe with excessive force against the terminal. (Terminal will come off easily from housing, otherwise.)

  - Do not insert the probe anywhere other than inspection hole. (Waterproof property will be lost, otherwise.)

AIRBAG(DIAGNOSTICS) > General Description
SYSTEM BLOCK DIAGRAM
AIRBAG(DIAGNOSTICS) > Electrical Component Location
LOCATION

(1) | Front impact sensor RH | (14) | Side impact sensor RH (rear wheel house) | (27) | Lap seat belt pretensioner RH
(2) | Front impact sensor LH | (15) | Side impact sensor LH (rear wheel house) | (28) | Lap seat belt pretensioner LH
(3) | Airbag control module | (16) | Side airbag inflator RH | (29) | Rear seat belt pretensioner LH
(4) | Airbag main harness (instrument panel harness) | (17) | Side airbag inflator LH | (30) | Rear seat belt pretensioner RH
(5) | Roll connector | (18) | Curtain airbag inflator RH | (31) | Seat position sensor RH
(6) | Passenger’s airbag inflator | (19) | Curtain airbag inflator LH | (32) | Occupant detection control module
(7) | Driver’s airbag inflator | (20) | Knee airbag inflator | (33) | Buckle switch (RH)
(8) | Airbag rear harness RH | (21) | {Side impact sensor (under the rear center seat)} | (34) | Data communication module
(9) | Airbag rear harness LH | (22) | Side impact sensor LH (front door) | (35) | Adaptive force limiter LH
(10) | Side impact sensor RH (center pillar) | (23) | Side impact sensor RH (front door) | (36) | Adaptive force limiter RH
(11) | Side impact sensor LH (center pillar) | (24) | Door harness LH | (37) | Bulkhead harness
(12) | Seat belt pretensioner RH | (25) | Door harness RH | (38) | Body integrated unit
(13) | Seat belt pretensioner LH | (26) | Data link connector | (39) | Seat position sensor LH

For the connector color and the number of pins, refer to the wiring system. WIRING SYSTEM>Airbag System>WIRING DIAGRAM

AIRBAG(DIAGNOSTICS) > Control Module I/O Signal
ELECTRICAL SPECIFICATION

- Terminal numbers in airbag control module connector are shown in the figure.

- The airbag warning light illuminates when the connector is removed from the airbag control module.

Contents | Terminal No. | Measuring condition | Standard
Passenger’s airbag module (2nd stage) | + | (AB6) No. 5 | — | —
− | (AB6) No. 4
Driver’s airbag module (2nd stage) | + | (AB6) No. 6 | — | —
− | (AB6) No. 7
Passenger’s airbag module (1st stage) | + | (AB6) No. 9 | — | —
− | (AB6) No. 8
Driver’s airbag module (1st stage) | + | (AB6) No. 10 | — | —
− | (AB6) No. 11
Passenger’s airbag module (active vent hole) | + | (AB6) No. 12 | — | —
− | (AB6) No. 13
Driver’s knee airbag module | + | (AB6) No. 15 | — |
− | (AB6) No. 14
CAN-L | (AB6) No. 18 | — | —
CAN-H | (AB6) No. 19 | — | —
Batch operation tool for disposal | (AB6) No. 24 | — | —
Front impact sensor RH | + | (AB6) No. 29 | — | —
− | (AB6) No. 30
Front impact sensor LH | + | (AB6) No. 32 | — | —
− | (AB6) No. 31
GND | (AB6) No. 33 | — | —
Battery power supply | (AB6) No. 35 | — | —
Telematics communication line (collision detection signal) | (AB6) No. 36 | — | —
Body integrated unit communication line (collision detection signal) | (AB6) No. 38 | — | —
Ignition power supply | (AB6) No. 40 | — | —
GND | (AB6) No. 43 | — | —
Side airbag module RH | + | (AB18) No. 6 | — | —
− | (AB18) No. 7
Curtain airbag module RH | + | (AB18) No. 10 | — | —
− | (AB18) No. 11
Front seat belt pretensioner RH (adaptive) | + | (AB18) No. 17 | — | —
− | (AB18) No. 16
Front seat belt pretensioner RH | + | (AB18) No. 18 | — | —
− | (AB18) No. 19
Front lap seat belt pretensioner RH | + | (AB18) No. 21 | — | —
− | (AB18) No. 20
Rear seat belt pretensioner RH | + | (AB18) No. 22 | — | —
− | (AB18) No. 23
Occupant detection control module | + | (AB18) No. 39 | — | —
− | (AB18) No. 27
Side impact sensor RH (rear wheel house) | + | (AB18) No. 31 | — | —
− | (AB18) No. 30
Side impact sensor RH (front door) | + | (AB18) No. 33 | — | —
− | (AB18) No. 32
Side impact sensor RH (center pillar) | + | (AB18) No. 35 | — | —
− | (AB18) No. 34
Seat position sensor RH | + | (AB18) No. 43 |  |
− | (AB18) No. 42 |  |
Seat position sensor LH | + | (AB18) No. 3 |  |
− | (AB18) No. 8 |  |
Curtain airbag module LH | + | (AB17) No. 6 | — | —
− | (AB17) No. 7
Side airbag module LH | + | (AB17) No. 13 | — | —
− | (AB17) No. 12
Side impact sensor (under the rear center seat) | + | (AB17) No. 17 | — | —
− | (AB17) No. 16
Front lap seat belt pretensioner LH | + | (AB17) No. 19 | — | —
− | (AB17) No. 18
Rear seat belt pretensioner LH | + | (AB17) No. 20 | — | —
− | (AB17) No. 21
Side impact sensor LH (rear wheel house) | + | (AB17) No. 27 | — | —
− | (AB17) No. 26
Side impact sensor LH (front door) | + | (AB17) No. 29 | — | —
− | (AB17) No. 28
Side impact sensor LH (center pillar) | + | (AB17) No. 31 | — | —
− | (AB17) No. 30
Front seat belt pretensioner LH | + | (AB17) No. 37 | — | —
− | (AB17) No. 36
Front seat belt pretensioner LH (adaptive) | + | (AB17) No. 38 | — | —
− | (AB17) No. 39

AIRBAG(DIAGNOSTICS) > Inspection Mode
PROCEDURE

Turn the ignition switch to ON, and wait for 6 seconds or more.

AIRBAG(DIAGNOSTICS) > Warning Light Illumination Pattern
INSPECTION

Turn the ignition switch to ON, and confirm that the airbag warning light remains on for approx. 6 seconds then turns off afterwards.

(1) | Airbag warning light
(2) | Approx. 6 seconds
(3) | Ignition switch ON

AIRBAG(DIAGNOSTICS) > Warning Light Illumination Pattern
WARNING LIGHT DOES NOT ILLUMINATE

Detecting condition:

- Airbag warning light is faulty.

- Airbag control module to combination meter circuit is shorted or open.

- Grounding circuit is faulty.

- Airbag control module is faulty.

- Connector connection is improper.

- Connections of (AB6, AB17, AB18) to airbag control module are improper.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK LAN SYSTEM.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

Is the check result OK?

2

Perform the inspection according to the diagnosis for LAN system.

2. CHECK FOR POOR CONTACT.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Check the connection status of airbag CM connector.

Is there poor contact of connector?

Reconnect the connector. Or repair the connector.

3

3. CHECK COMBINATION METER.

Check the combination meter. COMBINATION METER (DIAGNOSTICS)>Basic Diagnostic Procedure

Is the check result OK?

Replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

Repair it according to COMBINATION METER (DIAGNOSTICS). COMBINATION METER (DIAGNOSTICS)>Basic Diagnostic Procedure

AIRBAG(DIAGNOSTICS) > Warning Light Illumination Pattern
WARNING LIGHT REMAINS ON

For the diagnostic procedures, refer to “WARNING LIGHT DOES NOT COME ON”. AIRBAG(DIAGNOSTICS)>Warning Light Illumination Pattern>WARNING LIGHT DOES NOT ILLUMINATE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure for Subaru Select Monitor Communication
INSPECTION

Trouble symptom:

Cannot communicate with [Airbag].

DTC detecting condition:

- Defective harness connector

- Power supply circuit malfunction

- Defective CAN communication circuit

- Defective Subaru Select Monitor

Wiring diagram:

- Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

- CAN communication system WIRING SYSTEM>CAN Communication System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK BODY INTEGRATED UNIT AND SUBARU SELECT MONITOR COMMUNICATION.

Connect the Subaru Select Monitor, and check for the communication with [Body Control].

Is the check result OK?

5

2

2. CHECK SUBARU SELECT MONITOR.

Connect the Subaru Select Monitor to another vehicle, and check for the communication.

Is the check result OK?

3

Repair or replace the Subaru Select Monitor.

3. CHECK DATA LINK CONNECTOR.
1.

Turn the ignition switch to ON.

2.

Using the tester, measure the voltage between data link connector and chassis ground.

Connector & terminal

(i288) No. 16 (+) — Chassis ground (−):

(i288) No. 8 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Inspect the body integrated unit. BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure

4

4. CHECK FUSE.
1.

Turn the ignition switch to OFF.

2.

Remove a fuse in the data link connector and visually check the fuse.

Is the check result OK?

Repair the harness between the battery and the data link connector.

Replace the fuse. If the fuse is blown out again, check the power supply circuit.

5. CHECK AIRBAG CONTROL MODULE CONNECTOR.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Confirm that the connectors of airbag control module (AB6, AB17, AB18) are securely connected.

Is the check result OK?

6

Connect the connector of the airbag control module.

6. CHECK FUSE.

Remove fuse No. 20 from the fuse & relay box, and fuse No. 12 from the main fuse box, and perform visual inspection.

Is the check result OK?

7

Replace the fuse. If the fuse is blown out again, check the power supply circuit.

7. CHECK AIRBAG CM POWER SUPPLY CIRCUIT.
1.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

2.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

3.

Turn the ignition switch to ON.

4.

Measure the voltage between connector (2BD) in the test harness BD and chassis ground.

Connector & terminal

(2BD) No. 1 (+) — Chassis ground (−):

(2BD) No. 22 (+) — Chassis ground (−):

Is the voltage 10 V or more?

8

Repair the harness between the airbag control module and the battery. Or replace the airbag main harness along with the bulkhead harness.

8. CHECK BETWEEN AIRBAG CONTROL MODULE AND CHASSIS GROUND (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Measure the resistance between connector (2BD) in the test harness BD and chassis ground.

Connector & terminal

(2BD) No. 16 — Chassis ground:

(2BD) No. 17 — Chassis ground:

Is the resistance less than 10 Ω?

9

Repair the harness between the airbag control module and the chassis ground. Or replace the airbag main harness along with the bulkhead harness.

9. CHECK POOR CONTACT OF CONNECTOR.

Is there poor contact of control module power supply, ground line and data link connector?

Repair the connector. (Replace the harness without repairing the airbag system connector.)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

AIRBAG(DIAGNOSTICS) > Data Monitor
OPERATION

- For detailed operation procedures, refer to “Common (Diagnostics)”. COMMON(diag)>Data Monitor

- For details on the data monitor, refer to the list. AIRBAG(DIAGNOSTICS)>Data Monitor>LIST

AIRBAG(DIAGNOSTICS) > Data Monitor
LIST

Items | Contents | Standard/Unit | Note
Ignition Voltage | Display the ignition voltage. | V | —
Trip Count | Record • display the number of turning the ignition switch to ON. | time | —
Count | — | — | —
Time Count | Record • display the time elapsed after turning the ignition switch to ON. | ms | —
Seat Position Sensor RH | Display the passenger’s seat slide position. | At front-most: Front At rear-most: Rear At middle: Other | —
Seat Position Sensor LH | Display the driver’s seat slide position. | At front-most: Front At rear-most: Rear At middle: Other | —
Belt Buckle Switch RH | Display the status of passenger’s seat buckle switch. | When passenger’s seat belt is worn: OFF When passenger’s seat belt is not worn: Not Buckled | —
Passenger Occupant Status | Display the status of passenger seat’s occupant. | When occupant is adult: Adult When occupant is child: Child When unoccupied or child restraint seat is installed: Empty or CRS | —
Passenger Airbag Status | Display the status of passenger seat’s airbag. | Ignition possible: ON Ignition impossible: OFF | —

AIRBAG(DIAGNOSTICS) > Freeze Frame Data
OPERATION

- For detailed operation procedures, refer to “Common (Diagnostics)”. COMMON(diag)>Freeze Frame Data

- For details on freeze frame data, refer to the list. AIRBAG(DIAGNOSTICS)>Freeze Frame Data>LIST

AIRBAG(DIAGNOSTICS) > Freeze Frame Data
LIST

Item | Content | Standard/Unit | Note
Trip Count | Record • display the number of turning the ignition switch to ON. | time | —
Count | — | — | —
Time Count | Record • display the time elapsed after turning the ignition switch to ON. | ms | —

AIRBAG(DIAGNOSTICS) > Event Record Data
OPERATION
1.

On [Start] screen, select [Diagnosis].

2.

On [Vehicle selection] screen, input the target vehicle information and select [OK].

3.

On [Main Menu] screen, select [Each System].

4.

On [Select System] screen, select [Airbag] and then select [Enter].

5.

On [Airbag] screen, select [Work Support].

6.

On [Work Support item] menu screen, select [Event Record Data]. After it is selected, [IMPORTANT NOTICE] screen is displayed.

7.

After checking the content of [IMPORTANT NOTICE], click the checkbox for “Yes”.

8.

If the applicable law is not violated, click the [Yes] button to display the EDR data.

9.

Select the items to be checked from each event record data.

10.

Select the record data to be checked from each record data.

11.

The selected record data is displayed. When no EDR data is recorded, [Event Record Data is not recorded] will be displayed.

12.

Select [Exit] to return to each event record data screen.

AIRBAG(DIAGNOSTICS) > Batch save of Event record data
OPERATION
1.

On [Start] screen, select [Diagnosis].

2.

On [Vehicle selection] screen, input the target vehicle information and select [OK].

3.

On [Main Menu] screen, select [Each System].

4.

On [Select System] screen, select [Airbag] and then select [Enter].

5.

On [Airbag] screen, select [Work Support].

6.

On [Work Support item] menu screen, select [Batch save of Event record data]. After it is selected, [IMPORTANT NOTICE] screen is displayed.

7.

After checking the content of [IMPORTANT NOTICE], click the checkbox for “Yes”.

8.

If the applicable law is not violated, click the [Yes] button to display the EDR data.

9.

Specify the destination for the event record data to save the data there.

10.

After saving the file, click the [OK] button to return the menu screen.

AIRBAG(DIAGNOSTICS) > Diagnostic Trouble Code (DTC)
OPERATION

- For detailed operation procedures, refer to “Common (Diagnostics)”. COMMON(diag)>Diagnostic Trouble Code (DTC)

- For details on DTCs, refer to the list. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

AIRBAG(DIAGNOSTICS) > Diagnostic Trouble Code (DTC)
LIST

Code | Description & trouble part | Reference
B1000 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION
B1003 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1003 AIRBAG ECU MALFUNCTION
B1004 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1004 AIRBAG ECU MALFUNCTION
B1005 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1005 AIRBAG ECU MALFUNCTION
B1006 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1006 AIRBAG ECU MALFUNCTION
B111A | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B111A AIRBAG ECU MALFUNCTION
B111B | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B111B AIRBAG ECU MALFUNCTION
B1125 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1125 AIRBAG ECU MALFUNCTION
B1126 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1126 AIRBAG ECU MALFUNCTION
B1145 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1145 AIRBAG ECU MALFUNCTION
B1146 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1146 AIRBAG ECU MALFUNCTION
B1149 | AIRBAG ECU POWER SUPPLY VOLTAGE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1149 AIRBAG ECU POWER SUPPLY VOLTAGE
B117A | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B117A AIRBAG ECU MALFUNCTION
B1185 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1185 AIRBAG ECU MALFUNCTION
B1195 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1195 AIRBAG ECU MALFUNCTION
B1196 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1196 AIRBAG ECU MALFUNCTION
B1197 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1197 AIRBAG ECU MALFUNCTION
B1198 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1198 AIRBAG ECU MALFUNCTION
B1199 | AIRBAG ECU MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1199 AIRBAG ECU MALFUNCTION
B11E0 | ROLLOVER DEPLOYMENT HISTORY | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11E0 ROLLOVER DEPLOYMENT HISTORY
B11F0 | DISPOSAL PROCESS COMPLETE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F0 DISPOSAL PROCESS COMPLETE
B11F2 | FRONT IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F2 FRONT IMPACT DEPLOYMENT
B11F3 | FRONT IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F3 FRONT IMPACT DEPLOYMENT
B11F4 | FRONT IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F4 FRONT IMPACT DEPLOYMENT
B11F5 | FRONT IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F5 FRONT IMPACT DEPLOYMENT
B11F7 | SIDE IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F7 SIDE IMPACT DEPLOYMENT
B11F8 | SIDE IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F8 SIDE IMPACT DEPLOYMENT
B11F9 | SIDE IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F9 SIDE IMPACT DEPLOYMENT
B11FA | SIDE IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11FA SIDE IMPACT DEPLOYMENT
B11FB | SIDE IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11FB SIDE IMPACT DEPLOYMENT
B11FC | SIDE IMPACT DEPLOYMENT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11FC SIDE IMPACT DEPLOYMENT
B1610 | FRONT SUB SENSOR RH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1610 FRONT SUB SENSOR RH FAILURE
B1612 | FRONT SUB SENSOR RH LOST COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1612 FRONT SUB SENSOR RH LOST COMMUNICATION
B1613 | FRONT SUB SENSOR RH INITIALIZATION ERROR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1613 FRONT SUB SENSOR RH INITIALIZATION ERROR
B1615 | FRONT SUB SENSOR LH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1615 FRONT SUB SENSOR LH FAILURE
B1617 | FRONT SUB SENSOR LH LOST COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1617 FRONT SUB SENSOR LH LOST COMMUNICATION
B1618 | FRONT SUB SENSOR LH INITIALIZATION ERROR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1618 FRONT SUB SENSOR LH INITIALIZATION ERROR
B1620 | SIDE AIRBAG SENSOR RH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1620 SIDE AIRBAG SENSOR RH FAILURE
B1622 | SIDE AIRBAG SENSOR RH LOST COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1622 SIDE AIRBAG SENSOR RH LOST COMMUNICATION
B1623 | SIDE AIRBAG SENSOR RH INITIALIZATION ERROR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1623 SIDE AIRBAG SENSOR RH INITIALIZATION ERROR
B1625 | SIDE AIRBAG SENSOR LH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1625 SIDE AIRBAG SENSOR LH FAILURE
B1627 | SIDE AIRBAG SENSOR LH LOST COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1627 SIDE AIRBAG SENSOR LH LOST COMMUNICATION
B1628 | SIDE AIRBAG SENSOR LH INITIALIZATION ERROR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1628 SIDE AIRBAG SENSOR LH INITIALIZATION ERROR
B1630 | CURTAIN AIRBAG SENSOR RH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1630 CURTAIN AIRBAG SENSOR RH FAILURE
B1632 | CURTAIN AIRBAG SENSOR RH LOST COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1632 CURTAIN AIRBAG SENSOR RH LOST COMMUNICATION
B1633 | CURTAIN AIRBAG SENSOR RH INITIALIZATION ERROR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1633 CURTAIN AIRBAG SENSOR RH INITIALIZATION ERROR
B1635 | CURTAIN AIRBAG SENSOR LH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1635 CURTAIN AIRBAG SENSOR LH FAILURE
B1637 | CURTAIN AIRBAG SENSOR LH LOST COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1637 CURTAIN AIRBAG SENSOR LH LOST COMMUNICATION
B1638 | CURTAIN AIRBAG SENSOR LH INITIALIZATION ERROR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1638 CURTAIN AIRBAG SENSOR LH INITIALIZATION ERROR
B1650 | OCCUPANT DETECTION SYSTEM MALFUNCTION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1650 OCCUPANT DETECTION SYSTEM MALFUNCTION
B1653 | DRIVER SIDE SEAT POSITION SENSOR FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1653 DRIVER SIDE SEAT POSITION SENSOR FAILURE
B1654 | PASSENGER SIDE SEAT POSITION SENSOR FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1654 PASSENGER SIDE SEAT POSITION SENSOR FAILURE
B1655 | FRONT BUCKLE SWITCH RH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1655 FRONT BUCKLE SWITCH RH FAILURE
B1657 | CRASH DETECTED SIGNAL COMMUNICATION | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1657 CRASH DETECTED SIGNAL COMMUNICATION
B1661 | PASSENGER'S AIRBAG ON/OFF INDICATOR FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1661 PASSENGER'S AIRBAG ON/OFF INDICATOR FAILURE
B1675 | SATELLITE SAFING SENSOR FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1675 SATELLITE SAFING SENSOR FAILURE
B1678 | LOST COMMUNICATION WITH SATELLITE SAFING SENSOR | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1678 LOST COMMUNICATION WITH SATELLITE SAFING SENSOR
B1679 | SATELLITE SAFING SENSOR INITIALIZATION INCOMPLETE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1679 SATELLITE SAFING SENSOR INITIALIZATION INCOMPLETE
B1690 | DOOR SENSOR RH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1690 DOOR SENSOR RH FAILURE
B1692 | LOST COMMUNICATION WITH DOOR SENSOR RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1692 LOST COMMUNICATION WITH DOOR SENSOR RH
B1693 | DOOR SENSOR RH INITIALIZATION INCOMPLETE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1693 DOOR SENSOR RH INITIALIZATION INCOMPLETE
B1695 | DOOR SENSOR LH FAILURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1695 DOOR SENSOR LH FAILURE
B1697 | LOST COMMUNICATION WITH DOOR SENSOR LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH
B1698 | DOOR SENSOR LH INITIALIZATION INCOMPLETE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1698 DOOR SENSOR LH INITIALIZATION INCOMPLETE
B169F | DOOR SENSOR FAILURE: ABNORMAL PRESSURE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B169F DOOR SENSOR FAILURE: ABNORMAL PRESSURE
B1800 | SHORT IN DRIVER'S AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1800 SHORT IN DRIVER’S AIRBAG
B1801 | OPEN IN DRIVER'S AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1801 OPEN IN DRIVER’S AIRBAG
B1802 | SHORT IN DRIVER'S AIRBAG (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1802 SHORT IN DRIVER’S AIRBAG (TO GROUND)
B1803 | SHORT IN DRIVER'S AIRBAG (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1803 SHORT IN DRIVER’S AIRBAG (TO &plus;B)
B1804 | SHORT IN DRIVER'S AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1804 SHORT IN DRIVER'S AIRBAG
B1805 | SHORT IN PASSENGER'S AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1805 SHORT IN PASSENGER’S AIRBAG
B1806 | OPEN IN PASSENGER'S AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1806 OPEN IN PASSENGER’S AIRBAG
B1807 | SHORT IN PASSENGER'S AIRBAG (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1807 SHORT IN PASSENGER’S AIRBAG (TO GROUND)
B1808 | SHORT IN PASSENGER'S AIRBAG (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1808 SHORT IN PASSENGER’S AIRBAG (TO &plus;B)
B1809 | SHORT IN PASSENGER'S AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1809 SHORT IN PASSENGER'S AIRBAG
B1810 | SHORT IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1810 SHORT IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP
B1811 | OPEN IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1811 OPEN IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP
B1812 | SHORT IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1812 SHORT IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP (TO GROUND)
B1813 | SHORT IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP CIRCUIT (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1813 SHORT IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP CIRCUIT (TO &plus;B)
B1814 | SHORT IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1814 SHORT IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP
B1815 | SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1815 SHORT IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP
B1816 | OPEN IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1816 OPEN IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP
B1817 | SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1817 SHORT IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP (TO GROUND)
B1818 | SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP CIRCUIT (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1818 SHORT IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP CIRCUIT (TO &plus;B)
B1819 | SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1819 SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP
B181A | SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B181A SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT
B181B | OPEN IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B181B OPEN IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT
B181C | SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B181C SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT (TO GROUND)
B181D | SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B181D SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT (TO +B)
B181E | SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B181E SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT
B1820 | SHORT IN SIDE AIRBAG RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1820 SHORT IN SIDE AIRBAG RH
B1821 | OPEN IN SIDE AIRBAG RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1821 OPEN IN SIDE AIRBAG RH
B1822 | SHORT IN SIDE AIRBAG RH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)
B1823 | SHORT IN SIDE AIRBAG RH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1823 SHORT IN SIDE AIRBAG RH (TO &plus;B)
B1824 | SHORT IN SIDE AIRBAG RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1824 SHORT IN SIDE AIRBAG RH
B1825 | SHORT IN SIDE AIRBAG LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1825 SHORT IN SIDE AIRBAG LH
B1826 | OPEN IN SIDE AIRBAG LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1826 OPEN IN SIDE AIRBAG LH
B1827 | SHORT IN SIDE AIRBAG LH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1827 SHORT IN SIDE AIRBAG LH (TO GROUND)
B1828 | SHORT IN SIDE AIRBAG LH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1828 SHORT IN SIDE AIRBAG LH (TO &plus;B)
B1829 | SHORT IN SIDE AIRBAG LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1829 SHORT IN SIDE AIRBAG LH
B1830 | SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1830 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT
B1831 | OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1831 OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT
B1832 | SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1832 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND)
B1833 | SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1833 SHORT IN CURTAIN SHIELD AIRBAG RH SQUIB CIRCUIT (TO &plus;B)
B1834 | SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1834 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT
B1835 | SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1835 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT
B1836 | OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT
B1837 | SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1837 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT (TO GROUND)
B1838 | SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1838 SHORT IN CURTAIN SHIELD AIRBAG LH SQUIB CIRCUIT (TO &plus;B)
B1839 | SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1839 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT
B1860 | SHORT IN DRIVER'S KNEE AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1860 SHORT IN DRIVER’S KNEE AIRBAG
B1861 | OPEN IN DRIVER'S KNEE AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1861 OPEN IN DRIVER’S KNEE AIRBAG
B1862 | SHORT IN DRIVER'S KNEE AIRBAG (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1862 SHORT IN DRIVER’S KNEE AIRBAG (TO GROUND)
B1863 | SHORT IN DRIVER'S KNEE AIRBAG (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1863 SHORT IN DRIVER’S KNEE AIRBAG (TO &plus;B)
B1864 | SHORT IN DRIVER'S KNEE AIRBAG | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1864 SHORT IN DRIVER'S KNEE AIRBAG
B1900 | SHORT IN FRONT P/T RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1900 SHORT IN FRONT P/T RH
B1901 | OPEN IN FRONT P/T RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1901 OPEN IN FRONT P/T RH
B1902 | SHORT IN FRONT P/T RH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1902 SHORT IN FRONT P/T RH (TO GROUND)
B1903 | SHORT IN FRONT P/T RH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1903 SHORT IN FRONT P/T RH (TO &plus;B)
B1904 | SHORT IN FRONT P/T RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1904 SHORT IN FRONT P/T RH
B1905 | SHORT IN FRONT P/T LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1905 SHORT IN FRONT P/T LH
B1906 | OPEN IN FRONT P/T LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1906 OPEN IN FRONT P/T LH
B1907 | SHORT IN FRONT P/T LH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1907 SHORT IN FRONT P/T LH (TO GROUND)
B1908 | SHORT IN FRONT P/T LH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1908 SHORT IN FRONT P/T LH (TO &plus;B)
B1909 | SHORT IN FRONT P/T LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1909 SHORT IN FRONT P/T LH
B1910 | SHORT IN FRONT P/T RH(ADAPTIVE) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1910 SHORT IN FRONT P/T RH(ADAPTIVE)
B1911 | OPEN IN FRONT P/T RH (ADAPTIVE) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1911 OPEN IN FRONT P/T RH (ADAPTIVE)
B1912 | SHORT IN FRONT P/T RH(ADAPTIVE/TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1912 SHORT IN FRONT P/T RH(ADAPTIVE/TO GROUND)
B1913 | SHORT IN FRONT P/T RH(ADAPTIVE/TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1913 SHORT IN FRONT P/T RH(ADAPTIVE/TO +B)
B1914 | SHORT IN FRONT P/T LH(ADAPTIVE) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1914 SHORT IN FRONT P/T LH(ADAPTIVE)
B1915 | OPEN IN FRONT P/T LH (ADAPTIVE) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1915 OPEN IN FRONT P/T LH (ADAPTIVE)
B1916 | SHORT IN FRONT P/T LH (ADAPTIVE/TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1916 SHORT IN FRONT P/T LH (ADAPTIVE/TO GROUND)
B1917 | SHORT IN FRONT P/T LH (ADAPTIVE/TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1917 SHORT IN FRONT P/T LH (ADAPTIVE/TO +B)
B1918 | SHORT IN FRONT P/T RH (ADAPTIVE) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1918 SHORT IN FRONT P/T RH (ADAPTIVE)
B1919 | SHORT IN FRONT P/T LH (ADAPTIVE) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1919 SHORT IN FRONT P/T LH (ADAPTIVE)
B1920 | SHORT IN REAR P/T RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1920 SHORT IN REAR P/T RH
B1921 | OPEN IN REAR P/T RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1921 OPEN IN REAR P/T RH
B1922 | SHORT IN REAR P/T RH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1922 SHORT IN REAR P/T RH (TO GROUND)
B1923 | SHORT IN REAR P/T RH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1923 SHORT IN REAR P/T RH (TO &plus;B)
B1924 | SHORT IN REAR P/T RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1924 SHORT IN REAR P/T RH
B1925 | SHORT IN REAR P/T LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1925 SHORT IN REAR P/T LH
B1926 | OPEN IN REAR P/T LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1926 OPEN IN REAR P/T LH
B1927 | SHORT IN REAR P/T LH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1927 SHORT IN REAR P/T LH (TO GROUND)
B1928 | SHORT IN REAR P/T LH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1928 SHORT IN REAR P/T LH (TO &plus;B)
B1929 | SHORT IN REAR P/T LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1929 SHORT IN REAR P/T LH
B19EE | SHORT IN FRONT P/T 2 RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19EE SHORT IN FRONT P/T 2 RH
B19EF | SHORT IN FRONT P/T 2 LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19EF SHORT IN FRONT P/T 2 LH
B19F0 | SHORT IN FRONT P/T 2 RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F0 SHORT IN FRONT P/T 2 RH
B19F1 | OPEN IN FRONT P/T 2 RH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F1 OPEN IN FRONT P/T 2 RH
B19F2 | SHORT IN FRONT P/T 2 RH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F2 SHORT IN FRONT P/T 2 RH (TO GROUND)
B19F3 | SHORT IN FRONT P/T 2 RH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F3 SHORT IN FRONT P/T 2 RH (TO &plus;B)
B19F4 | SHORT IN FRONT P/T 2 LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F4 SHORT IN FRONT P/T 2 LH
B19F5 | OPEN IN FRONT P/T 2 LH | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F5 OPEN IN FRONT P/T 2 LH
B19F6 | SHORT IN FRONT P/T 2 LH (TO GROUND) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F6 SHORT IN FRONT P/T LH (TO GROUND)
B19F7 | SHORT IN FRONT P/T 2 LH (TO +B) | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B19F7 SHORT IN FRONT P/T 2 LH (TO +B)
U0073 | CONTROL MODULE COMMUNICATION BUS OFF | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF
U0100 | LOST COMMUNICATION WITH ECM/PCM "A" | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"
U0101 | LOST COMMUNICATION WITH TCM | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0101 LOST COMMUNICATION WITH TCM
U0122 | LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE
U0128 | LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE
U0140 | LOST COMMUNICATION WITH BODY CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE
U0155 | LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE
U0401 | INVALID DATA RECEIVED FROM ECM/PCM "A" | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"
U0402 | INVALID DATA RECEIVED FROM TCM | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0402 INVALID DATA RECEIVED FROM TCM
U0416 | INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE
U0417 | INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0417 INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE
U0422 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE
U0423 | INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE | AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1000 AIRBAG ECU MALFUNCTION

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Airbag ECM inner circuit malfunction

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any of B1000, B1003, B1004, B1005, B1006, B111A, B111B, B1125, B1126, B1145, B1146, B117A, B1185, B1195, B1196, B1197, B1198, or B1199 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1003 AIRBAG ECU MALFUNCTION

For details on DTC B1003, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1004 AIRBAG ECU MALFUNCTION

For details on DTC B1004, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1005 AIRBAG ECU MALFUNCTION

For details on DTC B1005, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1006 AIRBAG ECU MALFUNCTION

For details on DTC B1006, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B111A AIRBAG ECU MALFUNCTION

For details on DTC B111A, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B111B AIRBAG ECU MALFUNCTION

For details on DTC B111B, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1125 AIRBAG ECU MALFUNCTION

For details on DTC B1125, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1126 AIRBAG ECU MALFUNCTION

For details on DTC B1126, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1145 AIRBAG ECU MALFUNCTION

For details on DTC B1145, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1146 AIRBAG ECU MALFUNCTION

For details on DTC B1146, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1149 AIRBAG ECU POWER SUPPLY VOLTAGE

DTC detecting condition:

Detected when an error occurs in the power supply voltage supplied to the airbag control module.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DATA MONITOR.

Using Subaru Select Monitor, check the [IGN voltage] in the [Data monitor] of [Airbag]. AIRBAG(DIAGNOSTICS)>Data Monitor

If [IGN voltage] is 0 V; Go to A.

If [IGN voltage] is 0 — 11 V; Go to B.

If [IGN voltage] is 11 — 16 V; Go to C.

A

2

B

3

C

5

2. CHECK BATTERY.

Check the battery. STARTING/CHARGING SYSTEMS(H4DO)>Battery>INSPECTION

Is the battery OK?

3

Replace or charge the battery.

3. CHECK BATTERY TERMINAL.

Check the battery terminal for poor contact.

Is there poor contact at battery terminal?

Repair poor contact of battery terminal.

4

4. CHECK FUSE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove fuse No. 20 from the fuse & relay box, and fuse No. 12 from the main fuse box, and perform visual inspection.

Is the fuse OK?

5

Replace the fuse. If the replaced fuse blows out easily, repair the ground short circuit in harness between the airbag CM and fuse.

5. CHECK DATA MONITOR.
1.

Using Subaru Select Monitor, check the [IGN voltage] in the [Data monitor] of [Airbag]. AIRBAG(DIAGNOSTICS)>Data Monitor

2.

Check [IGN voltage] while wiggling the harness between airbag CM connector and fuse.

Is [IGN voltage] 11 — 16 V?

6

Repair or replace the faulty harness.

6. CHECK OPEN CIRCUIT OF AIRBAG CM GROUND CIRCUIT.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector from the airbag CM.

3.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

4.

Using a tester, measure the resistance between connector (2BD) in test harness BD and chassis ground.

Connector & terminal

(2BD) No. 16 — Chassis ground:

(2BD) No. 17 — Chassis ground:

Is the resistance less than 10 Ω?

7

Repair the open circuit in harness between airbag CM and chassis ground.

7. CHECK DTC.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Connect the ground terminal to battery sensor.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1149 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B117A AIRBAG ECU MALFUNCTION

For details on DTC B117A, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1185 AIRBAG ECU MALFUNCTION

For details on DTC B1185, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1195 AIRBAG ECU MALFUNCTION

For details on DTC B1195, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1196 AIRBAG ECU MALFUNCTION

For details on DTC B1196, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1197 AIRBAG ECU MALFUNCTION

For details on DTC B1197, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1198 AIRBAG ECU MALFUNCTION

For details on DTC B1198, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1199 AIRBAG ECU MALFUNCTION

For details on DTC B1199, refer to DTC B1000. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11E0 ROLLOVER DEPLOYMENT HISTORY

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

This DTC is indicated when the curtain airbag module and the seat belt pretensioner are deployed.

Once this DTC is displayed, the memory cannot be cleared. Replace the following parts.

- Airbag control module AIRBAG SYSTEM>Airbag Control Module

- Curtain airbag module AIRBAG SYSTEM>Curtain Airbag Module

- Front outer seat belt with pretensioner SEAT BELT SYSTEM>Front Seat Belt

- Rear seat belt pretensioner SEAT BELT SYSTEM>Rear Seat Belt

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F0 DISPOSAL PROCESS COMPLETE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Airbag disposal is completed with ISO collective disposal tool.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B11F0 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F2 FRONT IMPACT DEPLOYMENT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

This DTC is indicated when the front airbag module and the pretensioner are deployed.

Once this DTC is displayed, the memory cannot be cleared. Therefore replace the following parts.

- Airbag control module AIRBAG SYSTEM>Airbag Control Module

- Driver’s airbag module AIRBAG SYSTEM>Driver’s Airbag Module

- Passenger’s airbag module AIRBAG SYSTEM>Passenger’s Airbag Module

- Driver’s knee airbag module AIRBAG SYSTEM>Knee Airbag Module

- Front impact sensor on both sides AIRBAG SYSTEM>Impact Sensor

- Front outer seat belt with pretensioner of both sides SEAT BELT SYSTEM>Front Seat Belt

- Steering roll connector AIRBAG SYSTEM>Roll Connector

- Occupant detection system (passenger’s seat cushion & frame assembly) SEATS>Front Seat

- Curtain airbag module on both sides (when activated) AIRBAG SYSTEM>Curtain Airbag Module

- Outer seat belt with rear seat belt pretensioner on both sides SEAT BELT SYSTEM>Rear Seat Belt

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F3 FRONT IMPACT DEPLOYMENT

For details on DTC B11F3, refer to DTC B11F2. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F2 FRONT IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F4 FRONT IMPACT DEPLOYMENT

For details on DTC B11F4, refer to DTC B11F2. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F2 FRONT IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F5 FRONT IMPACT DEPLOYMENT

For details on DTC B11F3, refer to DTC B11F2. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F2 FRONT IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F7 SIDE IMPACT DEPLOYMENT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

This DTC is displayed when the side airbag module and curtain airbag module are deployed.

Once this DTC is displayed, the memory cannot be cleared. Replace the following parts.

- Airbag control module AIRBAG SYSTEM>Airbag Control Module

- Side airbag module (operating side) AIRBAG SYSTEM>Side Airbag Module

- Side impact sensor (center pillar) (operating side) AIRBAG SYSTEM>Impact Sensor

- Curtain airbag module (operating side) AIRBAG SYSTEM>Curtain Airbag Module

- Side impact sensor (rear wheel house) (operating side) AIRBAG SYSTEM>Impact Sensor

- Side impact sensor (under the rear center seat)AIRBAG SYSTEM>Impact Sensor

- Side impact sensor (front door) (operating side) AIRBAG SYSTEM>Impact Sensor

- Front outer seat belt with pretensioner on the collision side (when activated) SEAT BELT SYSTEM>Front Seat Belt

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F8 SIDE IMPACT DEPLOYMENT

For details on DTC B11F8. refer to DTC B11F7. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F7 SIDE IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11F9 SIDE IMPACT DEPLOYMENT

For details on DTC B11F9, refer to DTC B11F7. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F7 SIDE IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11FA SIDE IMPACT DEPLOYMENT

For details on DTC B11FA, refer to DTC B11F7. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F7 SIDE IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11FB SIDE IMPACT DEPLOYMENT

For details on DTC B11FB, refer to DTC B11F7. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F7 SIDE IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B11FC SIDE IMPACT DEPLOYMENT

For details on DTC B11FC, refer to DTC B11F7. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B11F7 SIDE IMPACT DEPLOYMENT

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1610 FRONT SUB SENSOR RH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Front impact sensor RH is faulty.

If DTC B1610 is displayed, the circuit within Front impact sensor RH is faulty.

Replace Front impact sensor RH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1612 FRONT SUB SENSOR RH LOST COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Front impact sensor bus RH

- Front impact sensor RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB6, AB16) between the airbag control module and Front impact sensor RH.

Is there poor contact?

Replace the airbag main harness along with body harness.

2

2. CHECK AIRBAG MAIN HARNESS (Front impact sensor BUS RH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connectors (AB7) and (AB2).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Disconnect the connector (AB16) from Front impact sensor RH.

8.

Using a probe, measure the resistance between the connector (2BD) in test harness BD and connector (AB16). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(2BD) No. 7 — (AB16) No. 1:

(2BD) No. 4 — (AB16) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG MAIN HARNESS (Front impact sensor BUS RH) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (2BD) in the test harness BD and chassis ground, and the resistance between connector (2BD) terminals in the test harness BD.

Connector & terminal

(2BD) No. 7 — Chassis ground:

(2BD) No. 4 — Chassis ground:

(2BD) No. 7 — (2BD) No. 4:

Is the resistance 1 MΩ or more?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1612 displayed? (Current malfunction)

Replace Front impact sensor RH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1613 FRONT SUB SENSOR RH INITIALIZATION ERROR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Front impact sensor RH is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB6, AB16) between the airbag control module and Front impact sensor RH.

Is there poor contact?

Replace the airbag main harness along with body harness.

2

2. CHECK Front impact sensor RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Front impact sensor RH with Front impact sensor LH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1613 displayed? (Current malfunction)

3

Replace Front impact sensor RH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Front impact sensor RH and Front impact sensor LH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1613 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1615 FRONT SUB SENSOR LH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Front impact sensor LH is faulty.

If DTC B1615 is displayed, the circuit within Front impact sensor LH is faulty.

Replace Front impact sensor LH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1617 FRONT SUB SENSOR LH LOST COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Front impact sensor bus LH

- Front impact sensor LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB6, AB13) between the airbag control module and Front impact sensor LH.

Is there poor contact?

Replace the airbag main harness along with body harness.

2

2. CHECK AIRBAG MAIN HARNESS (Front impact sensor BUS LH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Disconnect the connector (AB13) from Front impact sensor LH.

8.

Using a probe, measure the resistance between the connector (2BD) in test harness BD and connector (AB13). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(2BD) No. 6 — (AB13) No. 1:

(2BD) No. 3 — (AB13) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG MAIN HARNESS (Front impact sensor BUS LH) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (2BD) in the test harness BD and chassis ground, and the resistance between connector (2BD) terminals in the test harness BD.

Connector & terminal

(2BD) No. 6 — Chassis ground:

(2BD) No. 3 — Chassis ground:

(2BD) No. 6 — (2BD) No. 3:

Is the resistance 1 MΩ or more?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1617 displayed? (Current malfunction)

Replace Front impact sensor LH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1618 FRONT SUB SENSOR LH INITIALIZATION ERROR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Front impact sensor LH is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB6, AB13) between the airbag control module and Front impact sensor LH.

Is there poor contact?

Replace the airbag main harness along with body harness.

2

2. CHECK Front impact sensor LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Front impact sensor LH with Front impact sensor RH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1618 displayed? (Current malfunction)

3

Replace Front impact sensor LH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Front impact sensor LH and Front impact sensor RH. AIRBAG SYSTEM>Impact Sensor>REMOVAL > FRONT IMPACT SENSOR

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1618 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1620 SIDE AIRBAG SENSOR RH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor RH (center pillar) is faulty.

If DTC B1620 is displayed, the circuit within Side impact sensor RH (center pillar) is faulty.

Replace Side impact sensor RH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1622 SIDE AIRBAG SENSOR RH LOST COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor RH (center pillar)

- Side impact sensor RH (center pillar) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, AB28) between the airbag control module and Side impact sensor RH (center pillar).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor RH (center pillar)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) of side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB28) from Side impact sensor RH (center pillar).

11.

Using a probe, measure the resistance between the connector (4BD) in test harness BD and connector (AB28). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(4BD) No. 1 — (AB28) No. 2:

(4BD) No. 3 — (AB28) No. 1:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor RH (center pillar)) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (4BD) in the test harness BD and chassis ground, and the resistance between connector (4BD) terminals in the test harness BD.

Connector & terminal

(4BD) No. 1 — Chassis ground:

(4BD) No. 3 — Chassis ground:

(4BD) No. 1 — (4BD) No. 3:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1622 displayed? (Current malfunction)

Replace Side impact sensor RH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1623 SIDE AIRBAG SENSOR RH INITIALIZATION ERROR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor RH (center pillar) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, AB28) between the airbag control module and Side impact sensor RH (center pillar).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor RH (center pillar).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor RH (center pillar) with Side impact sensor LH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1623 displayed? (Current malfunction)

3

Replace Side impact sensor RH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor RH (center pillar) and Side impact sensor LH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1623 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1625 SIDE AIRBAG SENSOR LH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor LH (center pillar) is faulty.

If DTC B1625 is displayed, the circuit within Side impact sensor LH (center pillar) is faulty.

Replace Side impact sensor LH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1627 SIDE AIRBAG SENSOR LH LOST COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor LH (center pillar)

- Side impact sensor LH (center pillar) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB23) between the airbag control module and Side impact sensor LH (center pillar).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor LH (center pillar)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) of the side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB23) from Side impact sensor LH (center pillar).

11.

Using a probe, measure the resistance between the connector (6BD) in test harness BD and connector (AB23). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(6BD) No. 15 — (AB23) No. 1:

(6BD) No. 9 — (AB23) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor LH (center pillar)) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (6BD) in the test harness BD and chassis ground, and the resistance between connector (6BD) terminals in the test harness BD.

Connector & terminal

(6BD) No. 15 — Chassis ground:

(6BD) No. 9 — Chassis ground:

(6BD) No. 15 — (6BD) No. 9:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1627 displayed? (Current malfunction)

Replace Side impact sensor LH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1628 SIDE AIRBAG SENSOR LH INITIALIZATION ERROR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor LH (center pillar) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB23) between the airbag control module and Side impact sensor LH (center pillar).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor LH (center pillar).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor LH (center pillar) with Side impact sensor RH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1628 displayed? (Current malfunction)

3

Replace Side impact sensor LH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor LH (center pillar) and Side impact sensor RH (center pillar). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (CENTER PILLAR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1628 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1630 CURTAIN AIRBAG SENSOR RH FAILURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor RH (rear wheel house) is faulty.

If DTC B1630 is displayed, the circuit within Side impact sensor RH (rear wheel house) is faulty.

Replace Side impact sensor RH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1632 CURTAIN AIRBAG SENSOR RH LOST COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor RH (rear wheel house)

- Side impact sensor RH (rear wheel house) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, AB34) between the airbag control module and Side impact sensor RH (rear wheel house).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor RH (rear wheel house)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) of side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB34) from Side impact sensor RH (rear wheel house).

11.

Using a probe, measure the resistance between the connector (4BD) in test harness BD and connector (AB34). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(4BD) No. 15 — (AB34) No. 1:

(4BD) No. 10 — (AB34) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor RH (rear wheel house)) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (4BD) in the test harness BD and chassis ground, and the resistance between connector (4BD) terminals in the test harness BD.

Connector & terminal

(4BD) No. 15 — Chassis ground:

(4BD) No. 10 — Chassis ground:

(4BD) No. 15 — (4BD) No. 10:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1632 displayed? (Current malfunction)

Replace Side impact sensor RH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>INSTALLATION > SIDE IMPACT SENSOR (REAR WHEEL HOUSE) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1633 CURTAIN AIRBAG SENSOR RH INITIALIZATION ERROR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor RH (rear wheel house) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, AB34) between the airbag control module and Side impact sensor RH (rear wheel house).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor RH (rear wheel house).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor RH (rear wheel house) with Side impact sensor LH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>INSTALLATION > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1633 displayed? (Current malfunction)

3

Replace Side impact sensor RH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>INSTALLATION > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor RH (rear wheel house) and Side impact sensor LH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>INSTALLATION > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1633 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1635 CURTAIN AIRBAG SENSOR LH FAILURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor LH (rear wheel house) is faulty.

If DTC B1635 is displayed, the circuit within Side impact sensor LH (rear wheel house) is faulty.

Replace Side impact sensor LH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>INSTALLATION > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1637 CURTAIN AIRBAG SENSOR LH LOST COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor LH (rear wheel house)

- Side impact sensor LH (rear wheel house) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB32) between the airbag control module and Side impact sensor LH (rear wheel house).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor LH (rear wheel house)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) of the side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB32) from Side impact sensor LH (rear wheel house).

11.

Using a probe, measure the resistance between the connector (6BD) in test harness BD and connector (AB32). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(6BD) No. 17 — (AB32) No. 1:

(6BD) No. 11 — (AB32) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor LH (rear wheel house)) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (6BD) in the test harness BD and chassis ground, and the resistance between connector (6BD) terminals in the test harness BD.

Connector & terminal

(6BD) No. 17 — Chassis ground:

(6BD) No. 11 — Chassis ground:

(6BD) No. 17 — (6BD) No. 11:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1637 displayed? (Current malfunction)

Replace Side impact sensor LH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>INSTALLATION > SIDE IMPACT SENSOR (REAR WHEEL HOUSE) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1638 CURTAIN AIRBAG SENSOR LH INITIALIZATION ERROR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor LH (rear wheel house) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB32) between the airbag control module and Side impact sensor LH (rear wheel house).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor LH (rear wheel house).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor LH (rear wheel house) with Side impact sensor RH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1638 displayed? (Current malfunction)

3

Replace Side impact sensor LH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor LH (rear wheel house) and Side impact sensor RH (rear wheel house). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (REAR WHEEL HOUSE)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1638 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1650 OCCUPANT DETECTION SYSTEM MALFUNCTION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Occupant detection sensor is faulty.

- Occupant detection control module is faulty.

- Seat harness is defective.

- Fuse is blown.

- Rear airbag harness is faulty.

Wiring diagram:

Occupant detection system WIRING SYSTEM>Occupant Detection System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. OCCUPANT DETECTION(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.

Read the DTC of [Occupant Detection] using the Subaru Select Monitor. OCCUPANT DETECTION(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC for [Occupant Detection] displayed? (Current malfunction)

Perform the diagnosis of DTC for [Occupant Detection]. OCCUPANT DETECTION(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

2

2. CHECK SEAT HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB61) from occupant detection control module.

3.

Disconnect the connector (AB59) of seat harness and rear harness.

4.

Connect the connector (1BB) in the test harness BB to the connector (AB59).

5.

Using a tester, measure the resistance between occupant detection control module connector and connector (2BB) in test harness BB.

Connect the terminal in test harness BC to connector (AB61) terminal, and apply the tester to test harness BC.

Connector & terminal

(AB61) No. 2 — (2BB) No. 1:

(AB61) No. 3 — (2BB) No. 2:

Is the resistance less than 10 Ω?

3

Replace the seat harness. After replacement, if DTC B1650 is displayed, 5

3. CHECK SEAT HARNESS (SHORTED BETWEEN LINES AND SHORTED TO GROUND).

Using a tester, measure the resistance between occupant detection control module connector and chassis ground, and between occupant detection control module connector terminals.

Connect the terminal in test harness BC to connector (AB61) terminal, and apply the tester to test harness BC. Two sets of test harness BC are required.

Connector & terminal

(AB61) No. 2 — All terminals other than (AB61) No. 2:

(AB61) No. 3 — All terminals other than (AB61) No. 3:

(AB61) No. 2 — Chassis ground:

(AB61) No. 3 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the seat harness. After repairing, if DTC B1650 is displayed, 5

4. CHECK SEAT HARNESS (BATTERY SHORT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Using a tester, measure the voltage between occupant detection control module connector and chassis ground.

Connect the terminal in test harness BC to connector (AB61) terminal, and apply the tester to test harness BC.

Connector & terminal

(AB61) No. 2 (+) — Chassis ground (−):

(AB61) No. 3 (+) — Chassis ground (−):

Is the voltage less than 1 V?

5

Replace the seat harness. After repairing, if DTC B1650 is displayed, 5

5. CHECK REAR HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

3.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

4.

Connect the connector (1AB) in the test harness AB to the connector (AB53).

5.

Measure the resistance between connector (4BD) in the test harness BD and connector (2AB) in the test harness AB.

Connector & terminal

(2AB) No. 1 — (4BD) No. 2:

(2AB) No. 2 — (4BD) No. 7:

Is the resistance less than 10 Ω?

6

Replace the rear harness. After replacement, if DTC B1650 is displayed, replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module

6. CHECK REAR HARNESS (SHORTED BETWEEN LINES AND SHORTED TO GROUND).

Using a tester, measure the resistance between connector (4BD) in the test harness BD and chassis ground, and between connectors in the test harness BD.

Connector & terminal

(4BD) No. 2 — All terminals in test harness BD (except for (4BD) No. 2):

(4BD) No. 7 — All terminals in test harness BD (except for (4BD) No. 7):

(4BD) No. 2 — Chassis ground:

(4BD) No. 7 — Chassis ground:

Is the resistance 1 MΩ or more?

7

Replace the rear harness. After repairing, if DTC B1650 is displayed, replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module

7. CHECK REAR HARNESS (BATTERY SHORT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Using a tester, measure the voltage between connector (4BD) in test harness BD and chassis ground.

Connector & terminal

(4BD) No. 2 (+) — Chassis ground (−):

(4BD) No. 7 (+) — Chassis ground (−):

Is the voltage less than 1 V?

Replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module

Replace the rear harness. After repairing, if DTC B1650 is displayed, replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1653 DRIVER SIDE SEAT POSITION SENSOR FAILURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open, short circuit or short circuit to ground of the seat position sensor LH harness.

- Seat position sensor LH circuit is faulty.

- Seat position sensor LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB74) between the airbag control module and the seat position sensor.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT POSITION SENSOR LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the coupling connector (AB74) of the seat position sensor LH.

3.

Connect the connector (1BA) in the test harness BA to the connector (AB74).

4.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the seat position sensor. SEATS>Front Seat>DISASSEMBLY

3

3. CHECK AIRBAG REAR HARNESS (SEAT POSITION SENSOR LH HARNESS) (OPEN CIRCUIT INSPECTION).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the coupling connector (AB74) of the seat position sensor LH.

9.

Connect the connector (1H) in the test harness H to the connector (AB74).

10.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

11.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

12.

Measure the resistance between connector (6BD) in the test harness BD and connector (3H) in the test harness H.

Connector & terminal

(6BD) No. 5 — (3H) No. 6:

(6BD) No. 1 — (3H) No. 5:

Is the resistance less than 10 Ω?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG REAR HARNESS (SEAT POSITION SENSOR LH HARNESS) (INSPECTION FOR SHORT CIRCUIT AND SHORT CIRCUIT TO GROUND).

Measure the resistance between connector (6BD) in the test harness BD and chassis ground, and the resistance between connector (6BD) terminals in the test harness BD.

Connector & terminal

(6BD) No. 5 — Chassis ground:

(6BD) No. 1 — Chassis ground:

(6BD) No. 5 — (6BD) No. 1:

Is the resistance 1 MΩ or more?

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

Replace the airbag main harness along with body harness.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1654 PASSENGER SIDE SEAT POSITION SENSOR FAILURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open, short circuit or short circuit to ground of the seat position sensor RH harness.

- Seat position sensor RH circuit is faulty.

- Seat position sensor RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, AB25) between the airbag control module and the seat position sensor RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT POSITION SENSOR RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the coupling connector (AB25) of the seat position sensor.

3.

Connect the connector (1BA) in the test harness BA to the connector (AB25).

4.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the seat position sensor. SEATS>Front Seat>DISASSEMBLY

3

3. CHECK AIRBAG REAR HARNESS (SEAT POSITION SENSOR RH HARNESS) (OPEN CIRCUIT INSPECTION).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the coupling connector (AB25) of the seat position sensor RH.

9.

Connect the connector (1H) in the test harness H to the connector (AB25).

10.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

11.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

12.

Measure the resistance between connector (4BD) in the test harness BD and connector (3H) in the test harness H.

Connector & terminal

(4BD) No. 8 — (3H) No. 6:

(4BD) No. 5 — (3H) No. 5:

Is the resistance less than 10 Ω?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG REAR HARNESS (SEAT POSITION SENSOR RH HARNESS) (INSPECTION FOR SHORT CIRCUIT AND SHORT CIRCUIT TO GROUND).

Measure the resistance between connector (4BD) in the test harness BD and chassis ground, and the resistance between connector (4BD) terminals in the test harness BD.

Connector & terminal

(4BD) No. 8 — Chassis ground:

(4BD) No. 5 — Chassis ground:

(4BD) No. 8 — (4BD) No. 5:

Is the resistance 1 MΩ or more?

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

Replace the airbag main harness along with body harness.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1655 FRONT BUCKLE SWITCH RH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

- Buckle switch RH is faulty.

- Seat harness is faulty.

- Occupant detection system is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC for [Airbag ECU Malfunction] displayed? (Current malfunction)

Perform the diagnosis for [Airbag ECU Malfunction]. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

2

2. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1650 displayed? (Current malfunction)

Perform the diagnosis of DTC B1650. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1650 OCCUPANT DETECTION SYSTEM MALFUNCTION

3

3. CHECK DTC.

Read the DTC of [Occupant Detection] using the Subaru Select Monitor. OCCUPANT DETECTION(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1771 displayed? (Current malfunction)

Perform the diagnosis of DTC B1771. OCCUPANT DETECTION(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1771 BUCKLE SWITCH

Replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1656 FRONT BUCKLE SWITCH LH FAILURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Buckle switch RH is faulty.

- Seat harness is faulty.

- Occupant detection system is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC for [Airbag ECU Malfunction] displayed? (Current malfunction)

Perform the diagnosis for [Airbag ECU Malfunction]. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1000 AIRBAG ECU MALFUNCTION

2

2. CHECK DTC.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1650 displayed? (Current malfunction)

Perform the diagnosis of DTC B1650. AIRBAG(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1650 OCCUPANT DETECTION SYSTEM MALFUNCTION

3

3. CHECK DTC.

Read the DTC of [Occupant Detection] using the Subaru Select Monitor. OCCUPANT DETECTION(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1771 displayed? (Current malfunction)

Perform the diagnosis of DTC B1771. OCCUPANT DETECTION(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1771 BUCKLE SWITCH

Replace the airbag CM. AIRBAG SYSTEM>Airbag Control Module

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1657 CRASH DETECTED SIGNAL COMMUNICATION

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Communication with body integrated unit is faulty

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB6, i81) between the airbag control module and body integrated unit.

Is there poor contact?

Replace the airbag main harness along with body harness.

2

2. CHECK AIRBAG MAIN HARNESS (BETWEEN AIRBAG CONTROL MODULE AND BODY INTEGRATED UNIT) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connectors (AB7) and (AB2).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Disconnect the connector (i81) from body integrated unit.

8.

Measure the resistance between connector (2BD) in test harness BD and body integrated unit connector (i81).

Connector & terminal

(2BD) No. 12 — (i81) No. 31:

Is the resistance less than 10 Ω?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND BODY INTEGRATED UNIT) (SHORTED TO GROUND).

Measure the resistance between connector (2BD) in the test harness BD and chassis ground.

Connector & terminal

(2BD) No. 12 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with main harness.

4. REPLACE BODY INTEGRATED UNIT AND CHECK AIRBAG CONTROL MODULE AFTER REPLACEMENT.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace the body integrated unit. SECURITY AND LOCKS>Body Integrated Unit

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1657 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1661 PASSENGER'S AIRBAG ON/OFF INDICATOR FAILURE

Diagnosis start condition:

When the ignition voltage is 10 V — 16 V.

DTC detecting condition:

Passenger’s airbag indicator failure received (CAN signal from combination meter)

Perform the diagnosis for combination meter. COMBINATION METER (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1675 SATELLITE SAFING SENSOR FAILURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor (under the rear center seat) is faulty.

If DTC B1675 is displayed, the circuit within Side impact sensor (under the rear center seat) is faulty.

Replace Side impact sensor (under the rear center seat). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (UNDER THE REAR CENTER SEAT)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1678 LOST COMMUNICATION WITH SATELLITE SAFING SENSOR

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor (under the rear center seat)

- Side impact sensor (under the rear center seat) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB41) between the airbag control module and Side impact sensor (under the rear center seat).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND ).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB17, AB6, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB41) from Side impact sensor (under the rear center seat).

11.

Using a probe, measure the resistance between the connector (6BD) in test harness BD and connector (AB41). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(6BD) No. 6 — (AB41) No. 1:

(6BD) No. 2 — (AB41) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG REAR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor (under the rear center seat)).

Measure the resistance between connector (6BD) in the test harness BD and chassis ground, and the resistance between connector (6BD) terminals in the test harness BD.

Connector & terminal

(6BD) No. 6 — Chassis ground:

(6BD) No. 2 — Chassis ground:

(6BD) No. 6 — (6BD) No. 2:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1678 displayed? (Current malfunction)

Replace Side impact sensor (under the rear center seat). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (UNDER THE REAR CENTER SEAT) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1679 SATELLITE SAFING SENSOR INITIALIZATION INCOMPLETE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor (under the rear center seat) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, AB41) between the airbag control module and Side impact sensor (under the rear center seat).

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor (under the rear center seat).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor (under the rear center seat). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (UNDER THE REAR CENTER SEAT)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1679 displayed? (Current malfunction)

3

4

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor (under the rear center seat). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (UNDER THE REAR CENTER SEAT)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1679 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1690 DOOR SENSOR RH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor RH (front door) is faulty.

If DTC B1690 is displayed, the circuit within Side impact sensor RH (front door) is faulty.

Replace Side impact sensor RH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1692 LOST COMMUNICATION WITH DOOR SENSOR RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor RH (front door)

- Side impact sensor RH (front door) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, R124, AB64) between the airbag control module and Side impact sensor RH (front door).

Is there poor contact?

Replace the door harness or the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor RH (front door)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) of side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB64) from Side impact sensor RH (front door).

11.

Using a probe, measure the resistance between the connector (4BD) in test harness BD and connector (AB64). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(4BD) No. 9 — (AB64) No. 1:

(4BD) No. 4 — (AB64) No. 2:

Is the resistance less than 10 Ω?

3

Check the door harness, and if any fault is found, replace the harness. If there is no fault, replace the airbag rear harness together with body harness.

3. CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor RH (front door)) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (4BD) in the test harness BD and chassis ground, and the resistance between connector (4BD) terminals in the test harness BD.

Connector & terminal

(4BD) No. 9 — Chassis ground:

(4BD) No. 4 — Chassis ground:

(4BD) No. 9 — (4BD) No. 4:

Is the resistance 1 MΩ or more?

4

Check the door harness, and if any fault is found, replace the harness. If there is no fault, replace the airbag rear harness together with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1692 displayed? (Current malfunction)

Replace Side impact sensor RH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1693 DOOR SENSOR RH INITIALIZATION INCOMPLETE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor RH (front door) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB18, R124, AB64) between the airbag control module and Side impact sensor RH (front door).

Is there poor contact?

Replace the door harness or the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor RH (front door).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor RH (front door) with Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1693 displayed? (Current malfunction)

3

Replace Side impact sensor RH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor RH (front door) and Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1693 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1695 DOOR SENSOR LH FAILURE

Diagnosis start condition:

When ignition voltage is 10 — 16 V.

DTC detecting condition:

Side impact sensor LH (front door) is faulty.

If DTC B1695 is displayed, the circuit within Side impact sensor LH (front door) is faulty.

Replace Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1697 LOST COMMUNICATION WITH DOOR SENSOR LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Open or short circuit in harness of Side impact sensor LH (front door)

- Side impact sensor LH (front door) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, R123, AB58) between the airbag control module and Side impact sensor LH (front door).

Is there poor contact?

Replace the door harness or the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor LH (front door)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) of the side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Disconnect the connector (AB58) from Side impact sensor LH (front door).

11.

Using a probe, measure the resistance between the connector (6BD) in test harness BD and connector (AB58). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure to insert the probe from the inspection hole of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(6BD) No. 16 — (AB58) No. 1:

(6BD) No. 10 — (AB58) No. 2:

Is the resistance less than 10 Ω?

3

Check the door harness, and if any fault is found, replace the harness. If there is no fault, replace the airbag rear harness together with body harness.

3. CHECK AIRBAG REAR HARNESS AND DOOR HARNESS (BETWEEN AIRBAG CONTROL MODULE AND Side impact sensor LH (front door)) (SHORTED TO GROUND AND SHORTED BETWEEN LINES).

Measure the resistance between connector (6BD) in the test harness BD and chassis ground, and the resistance between connector (6BD) terminals in the test harness BD.

Connector & terminal

(6BD) No. 16 — Chassis ground:

(6BD) No. 10 — Chassis ground:

(6BD) No. 16 — (6BD) No. 10:

Is the resistance 1 MΩ or more?

4

Check the door harness, and if any fault is found, replace the harness. If there is no fault, replace the airbag rear harness together with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1697 displayed? (Current malfunction)

Replace Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR) Replace the airbag control module if not operating normally even after replacing the sensor. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1698 DOOR SENSOR LH INITIALIZATION INCOMPLETE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor LH (front door) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors (AB17, R123, AB58) between the airbag control module and Side impact sensor LH (front door).

Is there poor contact?

Replace the door harness or the airbag rear harness along with body harness.

2

2. CHECK Side impact sensor LH (front door).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Replace Side impact sensor LH (front door) with Side impact sensor RH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1698 displayed? (Current malfunction)

3

Replace Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor RH (front door) and Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1698 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B169F DOOR SENSOR FAILURE: ABNORMAL PRESSURE

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side impact sensor RH (front door) or Side impact sensor LH (front door) is faulty.

- Airbag control module is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK Side impact sensor RH (front door).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB64) from Side impact sensor RH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3.

Connect a new Side impact sensor RH (front door) to the connector (AB64).

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B169F displayed? (Current malfunction)

2

Replace Side impact sensor RH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

2. CHECK Side impact sensor LH (front door).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor RH (front door).

3.

Disconnect the connector (AB58) from Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

4.

Connect a new Side impact sensor LH (front door) to the connector (AB58).

5.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

6.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

7.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B169F displayed? (Current malfunction)

3

Replace Side impact sensor LH (front door). AIRBAG SYSTEM>Impact Sensor>REMOVAL > SIDE IMPACT SENSOR (FRONT DOOR)

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Reinstall Side impact sensor LH (front door).

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B169F displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1800 SHORT IN DRIVER’S AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted.

- Airbag module harness (driver’s side) circuit is shorted.

- Roll connector circuit is shorted.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR AND AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

3.

Disconnect the driver’s knee airbag module connector (AB66).

4.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between connector (2Q) terminals in test harness Q.

Connector & terminal

(2Q) No. 1 — (2Q) No. 2:

Is the resistance 1 MΩ or more?

5

4

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

2.

Measure the resistance between connector (3BD) terminals in test harness BD.

Connector & terminal

(3BD) No. 1 — (3BD) No. 6:

Is the resistance 1 MΩ or more?

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

Replace the airbag main harness along with body harness.

5. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1800 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1801 OPEN IN DRIVER’S AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is open.

- Airbag module harness (driver’s side) circuit is open.

- Roll connector is open.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR AND AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

3.

Disconnect the driver’s knee airbag module connector (AB66).

4.

Disconnect the airbag resistor from the connector (2N) in test harness N.

5.

Disconnect the airbag resistor from the connector (2Q) of test harness Q.

6.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

7.

Measure the resistance between connector (2Q) terminals in test harness Q.

Connector & terminal

(2Q) No. 1 — (2Q) No. 2:

Is the resistance less than 10 Ω?

5

4

4. CHECK ROLL CONNECTOR (OPEN CIRCUIT).
1.

Remove the instrument lower cover and column cover, and disconnect the connector (AB2).

2.

Measure the resistance between connector (2Q) terminals in test harness Q.

Connector & terminal

(2Q) No. 1 — (2Q) No. 2:

Is the resistance less than 10 Ω?

Replace the airbag main harness along with body harness.

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

5. CHECK AIRBAG CONTROL MODULE.
1.

Connect all connectors.

2.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

3.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

4.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1801 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1802 SHORT IN DRIVER’S AIRBAG (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to ground.

- Airbag module harness (driver’s side) circuit is shorted to ground.

- Roll connector circuit is shorted to ground.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

3.

Disconnect the driver’s knee airbag module connector (AB66).

4.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

5.

Measure the resistance between connector (2Q) in the test harness Q and chassis ground.

Connector & terminal

(2Q) No. 1 — Chassis ground:

(2Q) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED TO GROUND).
1.

Disconnect the test harness N from connector (AB38).

2.

Disconnect the test harness Q from connector (AB37).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

6.

Measure the resistance between connector (3BD) in the test harness BD and chassis ground.

Connector & terminal

(3BD) No. 1 — Chassis ground:

(3BD) No. 6 — Chassis ground:

Is the resistance 1 MΩ or more?

5

Replace the airbag main harness along with body harness.

5. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1802 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1803 SHORT IN DRIVER’S AIRBAG (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to power supply.

- Airbag module harness (driver’s side) circuit is shorted to power supply.

- Roll connector circuit is shorted to power supply.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

3.

Disconnect the driver’s knee airbag module connector (AB66).

4.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

5.

Measure the voltage between connector (2Q) in the test harness Q and chassis ground.

Connector & terminal

(2Q) No. 1 (+) — Chassis ground (−):

(2Q) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED TO POWER SUPPLY).
1.

Disconnect the test harness N from connector (AB38).

2.

Disconnect the test harness Q from connector (AB37).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Measure the voltage between connector (3BD) in the test harness BD and chassis ground.

Connector & terminal

(3BD) No. 1 (+) — Chassis ground (−):

(3BD) No. 6 (+) — Chassis ground (−):

Is the voltage less than 1 V?

5

Replace the airbag main harness along with body harness.

5. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

5.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

6.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

7.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1803 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1804 SHORT IN DRIVER'S AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short circuit malfunction between driver’s airbag circuit and other circuit

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the driver’s knee airbag module connector (AB66).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

6.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

7.

Measure the resistance between connector (2Q) in the test harness Q and all connector terminals in the test harness BD.

Connector & terminal

(2Q) No. 1 — All terminals in test harness BD (except for (3BD) No. 6):

(2Q) No. 2 — All terminals in test harness BD (except for (3BD) No. 1):

Is the resistance 1 MΩ or more?

4

Replace the roll connector and faulty harness. (Replace the airbag main harness along with body harness. Or replace the airbag rear harness along with body harness.) AIRBAG SYSTEM>Roll Connector

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

2.

Disconnect the test harness N from connector (AB38).

3.

Disconnect the test harness Q from connector (AB37).

4.

Measure the resistance between connector (3BD) in the test harness BD and all connector terminals in the test harness BD.

Connector & terminal

(3BD) No. 6 — All terminals in test harness BD (except for (3BD) No. 6):

(3BD) No. 1 — All terminals in test harness BD (except for (3BD) No. 1):

Is the resistance 1 MΩ or more?

5

Replace the faulty harness. (Replace the airbag main harness along with body harness. Or replace the airbag rear harness along with body harness.)

5. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1804 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1805 SHORT IN PASSENGER’S AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted.

- Airbag module harness circuit (passenger’s side) is shorted.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the test harness BD connector (1BD) to the connectors (AB6, AB17, AB18).

6.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

7.

Using a probe, measure the resistance between the terminals of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — (AB9) No. 2:

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB27).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1805 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1805 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1806 OPEN IN PASSENGER’S AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is open.

- Airbag module harness (passenger’s side) circuit is open.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

6.

Using a probe, measure the resistance between the terminals of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — (AB9) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

2.

Connect the connector (AB2) to the roll connector.

3.

Connect the passenger’s airbag module connector (AB27).

4.

Connect the connector (AB66) to the driver’s knee airbag module.

5.

Using a probe, short the terminals No. 1 and No. 2 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — (AB9) No. 2:

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1805 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Connect the ground terminal to battery sensor.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1806 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1807 SHORT IN PASSENGER’S AIRBAG (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to ground.

- Airbag module harness (passenger’s side) circuit is shorted to ground.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

6.

Using a probe, measure the resistance between the connector (AB9) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — Chassis ground:

(AB9) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

2.

Connect the connector (AB2) to the roll connector.

3.

Connect the passenger’s airbag module connector (AB27).

4.

Connect the connector (AB66) to the driver’s knee airbag module.

5.

Using a probe, short the terminals No. 1 and No. 2 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — (AB9) No. 2:

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1805 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1807 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1808 SHORT IN PASSENGER’S AIRBAG (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to power supply.

- Airbag module harness (passenger’s side) circuit is shorted to power supply.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Using a probe, measure the voltage between the connector (AB9) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the voltage, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 (+) — Chassis ground (−):

(AB9) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB27).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Using a probe, short the terminals No. 1 and No. 2 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — (AB9) No. 2:

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

8.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

9.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1805 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1808 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1809 SHORT IN PASSENGER'S AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short circuit malfunction between passenger’s airbag circuit and other circuit

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag main harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the driver’s knee airbag module connector (AB66).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Using a probe, measure the resistance between the connector (AB9) and all connector terminals in test harness BD. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — All terminals in test harness BD (except for (3BD) No. 11):

(AB9) No. 2 — All terminals in test harness BD (except for (3BD) No. 19):

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB27).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Using a probe, short the terminals No. 1 and No. 2 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 1 — (AB9) No. 2:

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

8.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

9.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1805 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1809 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1810 SHORT IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted.

- Airbag module harness (driver’s side) circuit is shorted.

- Roll connector circuit is shorted.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR AND AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between connector (2N) terminals in test harness N.

Connector & terminal

(2N) No. 1 — (2N) No. 2:

Is the resistance 1 MΩ or more?

5

4

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Remove the instrument lower cover and column cover, and disconnect the connector (AB2).

2.

Measure the resistance between connector (3BD) terminals in test harness BD.

Connector & terminal

(3BD) No. 7 — (3BD) No. 2:

Is the resistance 1 MΩ or more?

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

Replace the airbag main harness along with body harness.

5. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1810 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1811 OPEN IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is open.

- Airbag module harness (driver’s side) circuit is open.

- Roll connector circuit is open.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR AND AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the airbag resistor from the connector (2N) in test harness N.

5.

Disconnect the airbag resistor from the connector (2Q) of test harness Q.

6.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

7.

Measure the resistance between connector (2N) terminals in test harness N.

Connector & terminal

(2N) No. 1 — (2N) No. 2:

Is the resistance less than 10 Ω?

5

4

4. CHECK ROLL CONNECTOR.
1.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

2.

Measure the resistance between connector (2N) terminals in test harness N.

Connector & terminal

(2N) No. 1 — (2N) No. 2:

Is the resistance less than 10 Ω?

Replace the airbag main harness along with body harness.

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

5. CHECK AIRBAG CONTROL MODULE.
1.

Connect all connectors.

2.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

3.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

4.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1811 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1812 SHORT IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to ground.

- Airbag module harness (driver’s side) circuit is shorted to ground.

- Roll connector circuit is shorted to ground.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

5.

Measure the resistance between connector (2N) in the test harness N and chassis ground.

Connector & terminal

(2N) No. 1 — Chassis ground:

(2N) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED TO GROUND).
1.

Disconnect the test harness N from connector (AB38).

2.

Disconnect the test harness Q from connector (AB37).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

6.

Measure the resistance between connector (3BD) in the test harness BD and chassis ground.

Connector & terminal

(3BD) No. 7 — Chassis ground:

(3BD) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

5

Replace the airbag main harness along with body harness.

5. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1812 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1813 SHORT IN DRIVER’S AIRBAG DUAL STAGE - 2ND STEP CIRCUIT (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to power supply.

- Airbag module harness (driver’s side) circuit is shorted to power supply.

- Roll connector is shorted to power supply.

- Driver’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

6.

Measure the voltage between connector (2N) in the test harness N and chassis ground.

Connector & terminal

(2N) No. 1 (+) — Chassis ground (−):

(2N) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the roll connector. AIRBAG SYSTEM>Roll Connector

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness N from connector (AB38).

3.

Disconnect the test harness Q from connector (AB37).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

8.

Measure the voltage between connector (3BD) in the test harness BD and chassis ground.

Connector & terminal

(3BD) No. 7 (+) — Chassis ground (−):

(3BD) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

5

Replace the airbag main harness along with body harness.

5. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1813 displayed?

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1814 SHORT IN DRIVER'S AIRBAG DUAL STAGE - 2ND STEP

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short circuit malfunction between driver’s airbag circuit and other circuit

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the driver’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK DRIVER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the driver’s airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB38).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Connect the connector (1Q) in the test harness Q to connector (AB37).

6.

Connect the airbag resistor to the connector (2Q) in the test harness Q.

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module

3

3. CHECK ROLL CONNECTOR (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the driver’s knee airbag module connector (AB66).

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

6.

Disconnect the airbag resistor from the connector (2N) in test harness N and from the connector (2Q) in test harness Q.

7.

Measure the resistance between connector (2N) in the test harness N and all connector terminals in the test harness BD.

Connector & terminal

(2N) No. 1 — All terminals in test harness BD (except for (3BD) No. 7):

(2N) No. 2 — All terminals in test harness BD (except for (3BD) No. 2):

Is the resistance 1 MΩ or more?

4

Replace the roll connector AIRBAG SYSTEM>Roll Connector and faulty harness. (Replace the airbag main harness along with body harness. Or replace the airbag rear harness along with body harness.)

4. CHECK AIRBAG MAIN HARNESS (DRIVER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

2.

Disconnect the test harness N from connector (AB38).

3.

Disconnect the test harness Q from connector (AB37).

4.

Measure the resistance between connector (3BD) in the test harness BD and all connector terminals in the test harness BD.

Connector & terminal

(3BD) No. 7 — All terminals in test harness BD (except for (3BD) No. 7):

(3BD) No. 2 — All terminals in test harness BD (except for (3BD) No. 2):

Is the resistance 1 MΩ or more?

5

Replace the faulty harness. (Replace the airbag main harness along with body harness. Or replace the airbag rear harness along with body harness.)

5. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1814 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

6

6. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1815 SHORT IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted.

- Airbag module harness circuit (passenger’s side) is shorted.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the test harness BD connector (1BD) to the connectors (AB6, AB17, AB18).

6.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

7.

Using a probe, measure the resistance between the terminals of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB27).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1815 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1815 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1816 OPEN IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is open.

- Airbag module harness (passenger’s side) circuit is open.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

6.

Using a probe, measure the resistance between the terminals of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

Is the resistance less than 10 Ω?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

2.

Connect the connector (AB2) to the roll connector.

3.

Connect the passenger’s airbag module connector (AB27).

4.

Connect the connector (AB66) to the driver’s knee airbag module.

5.

Using a probe, short the terminals No. 3 and No. 4 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1815 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Connect the ground terminal to battery sensor.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1816 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1817 SHORT IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to ground.

- Airbag module harness (passenger’s side) circuit is shorted to ground.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

6.

Using a probe, measure the resistance between the connector (AB9) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — Chassis ground:

(AB9) No. 4 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

2.

Connect the connector (AB2) to the roll connector.

3.

Connect the passenger’s airbag module connector (AB27).

4.

Connect the connector (AB66) to the driver’s knee airbag module.

5.

Using a probe, short the terminals No. 3 and No. 4 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1815 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1817 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1818 SHORT IN PASSENGER’S AIRBAG DUAL STAGE - 2ND STEP CIRCUIT (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to power supply.

- Airbag module harness (passenger’s side) circuit is shorted to power supply.

- Passenger’s airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the connector (AB66) from the driver’s knee airbag module.

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Using a probe, measure the voltage between the connector (AB9) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the voltage, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 (+) — Chassis ground (−):

(AB9) No. 4 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB27).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Using a probe, short the terminals No. 3 and No. 4 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

8.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

9.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1815 displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1818 displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1819 SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short circuit malfunction between passenger’s airbag circuit and other circuit

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag main harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the driver’s knee airbag module connector (AB66).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Using a probe, measure the resistance between the connector (AB9) and all connector terminals in test harness BD. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the voltage, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — All terminals in test harness BD (except for (3BD) No. 12):

(AB9) No. 4 — All terminals in test harness BD (except for (3BD) No. 20):

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB27).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Using a probe, short the terminals No. 3 and No. 4 of connector (AB9). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

8.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

9.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1815 displayed?

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module connector (AB9).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1819 displayed?

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B181A SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted.

- Airbag module harness circuit (passenger’s side) is shorted.

- Passenger’s airbag module (variable vent hole) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare two sets of TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module (variable vent hole).

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG (VARIABLE VENT HOLE) HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from the driver’s knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the test harness BD connector (1BD) to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between terminals of connector (AB27) of the passenger’s airbag (variable vent hole). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

Connect the test harness AT terminal to the connector (AB27) terminal and contact a tester to the test harness AT. Two sets of test harness AT are required.

Connector & terminal

(AB27) No. 1 — (AB27) No. 2:

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB9).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181A displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK PASSENGER’S AIRBAG MODULE (VARIABLE VENT HOLE).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module (variable vent hole) connector (AB27).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181A displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B181B OPEN IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is open.

- Airbag module harness (passenger’s side) circuit is open.

- Passenger’s airbag module (variable vent hole) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare two sets of TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module (variable vent hole).

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG (VARIABLE VENT HOLE) HARNESS) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from the driver’s knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Measure the resistance between terminals of connector (AB27) of the passenger’s airbag (variable vent hole). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

Connect the test harness AT terminal to the connector (AB27) terminal and contact a tester to the test harness AT. Two sets of test harness AT are required.

Connector & terminal

(AB27) No. 1 — (AB27) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

2.

Connect the connector (AB2) to the roll connector.

3.

Connect the passenger’s airbag module connector (AB9).

4.

Connect the connector (AB66) to the driver’s knee airbag module.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

6.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

7.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181B displayed? (Current malfunction)

4

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4. CHECK PASSENGER’S AIRBAG MODULE (VARIABLE VENT HOLE).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module (variable vent hole) connector (AB27).

3.

Connect the ground terminal to battery sensor.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181B displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B181C SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to ground.

- Airbag module harness (passenger’s side) circuit is shorted to ground.

- Passenger’s airbag module (variable vent hole) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module (variable vent hole).

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG (VARIABLE VENT HOLE) HARNESS) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from the driver’s knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Measure the resistance between connector (AB27) of the passenger’s airbag (variable vent hole) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

Connect the test harness AT terminal to the connector (AB27) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB27) No. 1 — Chassis ground:

(AB27) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

2.

Connect the connector (AB2) to the roll connector.

3.

Connect the passenger’s airbag module connector (AB9).

4.

Connect the connector (AB66) to the driver’s knee airbag module.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

6.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

7.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181C displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK PASSENGER’S AIRBAG MODULE (VARIABLE VENT HOLE).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module (variable vent hole) connector (AB27).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181C displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B181D SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to power supply.

- Airbag module harness (passenger’s side) circuit is shorted to power supply.

- Passenger’s airbag module (variable vent hole) is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG (VARIABLE VENT HOLE) HARNESS) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connector (AB66) from the driver’s knee airbag module.

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Measure the voltage between connector (AB27) of the passenger’s airbag (variable vent hole) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

Connect the test harness AT terminal to the connector (AB27) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB27) No. 1 (+) — Chassis ground (−):

(AB27) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB9).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181D displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK PASSENGER’S AIRBAG MODULE (VARIABLE VENT HOLE).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module (variable vent hole) connector (AB27).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181D displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B181E SHORT IN PASSENGER SIDE AIRBAG VARIABLE VENT HOLE SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short circuit malfunction between passenger’s airbag (variable vent hole) circuit and other circuit

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the passenger’s airbag module (variable vent hole).

Is there poor contact?

Replace the airbag main harness.

2

2. CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG (VARIABLE VENT HOLE) HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB2) from the roll connector.

3.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

4.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

5.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

6.

Measure the resistance between connector (AB27) of the passenger’s airbag (variable vent hole) and all connector terminals in the test harness BD. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

Connect the test harness AT terminal to the connector (AB27) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB27) No. 1 — All terminals in test harness BD (except for (3BD) No. 21):

(AB27) No. 2 — All terminals in test harness BD (except for (3BD) No. 13):

Is the resistance 1 MΩ or more?

3

Replace the airbag main harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect the connectors (AB6, AB17, AB18) and the airbag control module.

3.

Connect the connector (AB2) to the roll connector.

4.

Connect the passenger’s airbag module connector (AB9).

5.

Connect the connector (AB66) to the driver’s knee airbag module.

6.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

7.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

8.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181E displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module>REMOVAL

4

4. CHECK PASSENGER’S AIRBAG MODULE (VARIABLE VENT HOLE).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the passenger’s airbag module (variable vent hole) connector (AB27).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B181E displayed? (Current malfunction)

Replace the passenger’s airbag module. AIRBAG SYSTEM>Passenger’s Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1820 SHORT IN SIDE AIRBAG RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness RH circuit is shorted.

- Side airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare two sets of TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between terminals of connector (AB24) of side airbag module RH.

Connect the test harness AT terminal to the connector (AB24) terminal and contact a tester to the test harness AT. Two sets of test harness AT are required.

Connector & terminal

(AB24) No. 1 — (AB24) No. 2:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors other than side airbag module RH connector (AB24).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1820 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1820 displayed? (Current malfunction)

Replace the side airbag module RH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1821 OPEN IN SIDE AIRBAG RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness RH circuit is open.

- Side airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare two sets of TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS RH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Measure the resistance between terminals of connector (AB24) of side airbag module RH.

Connect the test harness AT terminal to the connector (AB24) terminal and contact a tester to the test harness AT. Two sets of test harness AT are required.

Connector & terminal

(AB24) No. 1 — (AB24) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all connectors other than side airbag module RH connector (AB24).

2.

Using test harness AT, short the terminals No. 1 and No. 2 of connector (AB24).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1821 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1821 displayed? (Current malfunction)

Replace the side airbag module RH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness RH circuit is shorted to ground.

- Side airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS RH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (AB24) of side airbag module RH and chassis ground.

Connect the test harness AT terminal to the connector (AB24) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB24) No. 1 — Chassis ground:

(AB24) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors other than side airbag module RH connector (AB24).

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1822 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1822 displayed? (Current malfunction)

Replace the side airbag module RH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1823 SHORT IN SIDE AIRBAG RH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness RH is shorted to power supply.

- Side airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS RH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

10.

Measure the voltage between connector (AB24) of side airbag module RH and chassis ground.

Connect the test harness AT terminal to the connector (AB24) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB24) No. 1 (+) — Chassis ground (−):

(AB24) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors other than side airbag module RH connector (AB24).

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1823 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1823 displayed? (Current malfunction)

Replace the side airbag module RH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1824 SHORT IN SIDE AIRBAG RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between side airbag module RH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (AB24) of the side airbag module RH and all connector terminals in the test harness BD.

Connect the test harness AT terminal to the connector (AB24) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB24) No. 1 — All terminals in test harness BD (except for (5BD) No. 3):

(AB24) No. 2 — All terminals in test harness BD (except for (5BD) No. 8):

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors other than side airbag module RH connector (AB24).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1824 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1824 displayed? (Current malfunction)

Replace the side airbag module RH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1825 SHORT IN SIDE AIRBAG LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness LH circuit is shorted.

- Side airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare two sets of TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between terminals of connector (AB19) of side airbag module LH.

Connect the test harness AT terminal to the connector (AB19) terminal and contact a tester to the test harness AT. Two sets of test harness AT are required.

Connector & terminal

(AB19) No. 1 — (AB19) No. 2:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors other than side airbag module LH connector (AB19).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1825 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1825 displayed? (Current malfunction)

Replace the side airbag module LH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1826 OPEN IN SIDE AIRBAG LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness LH circuit is open.

- Side airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

Before starting work, prepare two sets of TEST HARNESS AT (98299CA020).

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS LH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Measure the resistance between terminals of connector (AB19) of side airbag module LH.

Connect the test harness AT terminal to the connector (AB19) terminal and contact a tester to the test harness AT. Two sets of test harness AT are required.

Connector & terminal

(AB19) No. 1 — (AB19) No. 2:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all connectors other than side airbag module LH connector (AB19).

2.

Using test harness AT, short the terminals No. 1 and No. 2 of connector (AB19).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1826 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1826 displayed? (Current malfunction)

Replace the side airbag module LH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1827 SHORT IN SIDE AIRBAG LH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness LH circuit is shorted to ground.

- Side airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS LH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Measure the resistance between connector (AB19) of side airbag module LH and chassis ground.

Connect the test harness AT terminal to the connector (AB19) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB19) No. 1 — Chassis ground:

(AB19) No. 2 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all connectors other than side airbag module LH connector (AB19).

2.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1827 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1827 displayed? (Current malfunction)

Replace the side airbag module LH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1828 SHORT IN SIDE AIRBAG LH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Side airbag harness LH is shorted to power supply.

- Side airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS LH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

10.

Measure the voltage between connector (AB19) of side airbag module LH and chassis ground.

Connect the test harness AT terminal to the connector (AB19) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB19) No. 1 (+) — Chassis ground (−):

(AB19) No. 2 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors other than side airbag module LH connector (AB19).

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1828 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1828 displayed? (Current malfunction)

Replace the side airbag module LH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1829 SHORT IN SIDE AIRBAG LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between side airbag module LH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the side airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (SIDE AIRBAG MODULE HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (AB19) of the side airbag module LH and all connector terminals in the test harness BD.

Connect the test harness AT terminal to the connector (AB24) terminal and contact a tester to the test harness AT.

Connector & terminal

(AB19) No. 1 — All terminals in test harness BD (except for (7BD) No. 9):

(AB19) No. 2 — All terminals in test harness BD (except for (7BD) No. 15):

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all connectors other than side airbag module LH connector (AB19).

2.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1829 displayed?

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK SIDE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all connectors.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1829 displayed?

Replace the side airbag module LH. AIRBAG SYSTEM>Side Airbag Module>REMOVAL

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1830 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness RH circuit is shorted.

- Curtain airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB33) from curtain airbag module RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB33).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the curtain airbag module RH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB24) from side airbag module RH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) terminals in test harness BD.

Connector & terminal

(5BD) No. 1 — (5BD) No. 6:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1830 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1831 OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness RH circuit is open.

- Curtain airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB33) from curtain airbag module RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB33).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the curtain airbag module RH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB24) of side airbag module RH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(5BD) No. 6 — (2N) No. 1:

(5BD) No. 1 — (2N) No. 2:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1831 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1832 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness RH circuit is shorted to ground.

- Curtain airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB33) from curtain airbag module RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB33).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the curtain airbag module RH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB24) from side airbag module RH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 6 — Chassis ground:

(5BD) No. 1 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1832 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1833 SHORT IN CURTAIN SHIELD AIRBAG RH SQUIB CIRCUIT (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness RH is shorted to power supply.

- Curtain airbag module RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB33) from curtain airbag module RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB33).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the curtain airbag module RH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB24) from side airbag module RH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 6 (+) — Chassis ground (−):

(5BD) No. 1 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1833 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1834 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between curtain airbag module RH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB33) from curtain airbag module RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB33).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the curtain airbag module RH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB24) from side airbag module RH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (2N) in the test harness N and all connector terminals in the test harness BD.

Connector & terminal

(2N) No. 1 — All terminals in test harness BD (except for (5BD) No. 6):

(2N) No. 2 — All terminals in test harness BD (except for (5BD) No. 1):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1834 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1835 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness LH circuit is shorted.

- Curtain airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB31) from curtain airbag module LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB31).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the curtain airbag module LH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB19) from side airbag module LH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) terminals in test harness BD.

Connector & terminal

(7BD) No. 1 — (7BD) No. 5:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1835 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1836 OPEN IN CURTAIN AIRBAG LH SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness LH circuit is open.

- Curtain airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB31) from curtain airbag module LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB31).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the curtain airbag module LH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS LH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB19) from side airbag module LH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(7BD) No. 1 — (2N) No. 2:

(7BD) No. 5 — (2N) No. 1:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1836 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1837 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness LH circuit is shorted to ground.

- Curtain airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB31) from curtain airbag module LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB31).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the curtain airbag module LH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS LH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB19) from side airbag module LH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 1 — Chassis ground:

(7BD) No. 5 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1837 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1838 SHORT IN CURTAIN SHIELD AIRBAG LH SQUIB CIRCUIT (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Curtain airbag harness LH is shorted to power supply.

- Curtain airbag module LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB31) from curtain airbag module LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB31).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the curtain airbag module LH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS LH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB19) from side airbag module LH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 1 (+) — Chassis ground (−):

(7BD) No. 5 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1838 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1839 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUIT

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between curtain airbag module LH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the curtain airbag module LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK CURTAIN AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB31) from curtain airbag module LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB31).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the curtain airbag module LH. AIRBAG SYSTEM>Curtain Airbag Module

3

3. CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB19) from side airbag module LH.

7.

Disconnect the airbag resistor from test harness N.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (2N) in the test harness N and all connector terminals in the test harness BD.

Connector & terminal

(2N) No. 1 — All terminals in test harness BD (except for (7BD) No. 5):

(2N) No. 2 — All terminals in test harness BD (except for (7BD) No. 1):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1839 displayed?

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1860 SHORT IN DRIVER’S KNEE AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted.

- Knee airbag module harness circuit is shorted.

- Knee airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the knee airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK KNEE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB66) from knee airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB66).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the knee airbag module. AIRBAG SYSTEM>Knee Airbag Module>REMOVAL

3

3. CHECK AIRBAG MAIN HARNESS (KNEE AIRBAG HARNESS) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from test harness N.

3.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between connector (3BD) terminals in test harness BD.

Connector & terminal

(3BD) No. 3 — (3BD) No. 8:

Is the resistance 1 MΩ or more?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1860 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1861 OPEN IN DRIVER’S KNEE AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is open.

- Knee airbag module harness circuit is open.

- Knee airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the knee airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK KNEE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB66) from knee airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB66).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the knee airbag module. AIRBAG SYSTEM>Knee Airbag Module>REMOVAL

3

3. CHECK AIRBAG MAIN HARNESS (KNEE AIRBAG HARNESS) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from test harness N.

3.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between connector (3BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(3BD) No. 8 — (2N) No. 1:

(3BD) No. 3 — (2N) No. 2:

Is the resistance less than 10 Ω?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1861 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1862 SHORT IN DRIVER’S KNEE AIRBAG (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to ground.

- Knee airbag module harness circuit is shorted to ground.

- Knee airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the knee airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK KNEE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB66) from knee airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB66).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the knee airbag module. AIRBAG SYSTEM>Knee Airbag Module>REMOVAL

3

3. CHECK AIRBAG MAIN HARNESS (KNEE AIRBAG HARNESS) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from test harness N.

3.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between connector (3BD) in the test harness BD and chassis ground.

Connector & terminal

(3BD) No. 3 — Chassis ground:

(3BD) No. 8 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1862 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1863 SHORT IN DRIVER’S KNEE AIRBAG (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Airbag main harness circuit is shorted to power supply.

- Knee airbag module harness circuit is shorted to power supply.

- Knee airbag module is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the knee airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK KNEE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB66) from knee airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB66).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the knee airbag module. AIRBAG SYSTEM>Knee Airbag Module>REMOVAL

3

3. CHECK AIRBAG MAIN HARNESS (KNEE AIRBAG HARNESS) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from test harness N.

3.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

8.

Measure the voltage between connector (3BD) in the test harness BD and chassis ground.

Connector & terminal

(3BD) No. 3 (+) — Chassis ground (−):

(3BD) No. 8 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1863 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1864 SHORT IN DRIVER'S KNEE AIRBAG

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short circuit malfunction between driver’s knee airbag circuit and other circuit

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the knee airbag module.

Is there poor contact?

Replace the airbag harness.

2

2. CHECK KNEE AIRBAG MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB66) from knee airbag module.

3.

Connect the connector (1N) in the test harness N to the connector (AB66).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for six seconds and go off?

Replace the knee airbag module. AIRBAG SYSTEM>Knee Airbag Module>REMOVAL

3

3. CHECK AIRBAG MAIN HARNESS (KNEE AIRBAG HARNESS).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from test harness N.

3.

Remove the instrument panel lower cover and column cover, and disconnect the connector (AB2).

4.

Disconnect the passenger’s airbag module connectors (AB9) and (AB27).

5.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

6.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

7.

Measure the resistance between connector (2N) in the test harness N and all connector terminals in the test harness BD.

Connector & terminal

(2N) No. 1 — All terminals in test harness BD (except for (3BD) No. 8):

(2N) No. 2 — All terminals in test harness BD (except for (3BD) No. 3):

Is the resistance 1 MΩ or more?

4

Replace the airbag main harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1864 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1900 SHORT IN FRONT P/T RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH circuit is shorted.

- Seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB26).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) terminals in test harness BD.

Connector & terminal

(5BD) No. 12 — (5BD) No. 19:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1900 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1901 OPEN IN FRONT P/T RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH circuit is open.

- Seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from the lap seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB26).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(5BD) No. 12 — (2N) No. 2:

(5BD) No. 19 — (2N) No. 1:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1901 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1902 SHORT IN FRONT P/T RH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH circuit is shorted to ground.

- Seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB26).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER RH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 12 — Chassis ground:

(5BD) No. 19 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1902 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1903 SHORT IN FRONT P/T RH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH circuit is shorted to power supply.

- Seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB26).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 12 (+) — Chassis ground (−):

(5BD) No. 19 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1903 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1904 SHORT IN FRONT P/T RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between seat belt pretensioner harness RH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB26).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and all connector terminals in the test harness BD.

Connector & terminal

(5BD) No. 12 — All terminals in test harness BD (except for (5BD) No. 12):

(5BD) No. 19 — All terminals in test harness BD (except for (5BD) No. 19):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1904 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1905 SHORT IN FRONT P/T LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH circuit is shorted.

- Seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from lap seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB21).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) terminals in test harness BD.

Connector & terminal

(7BD) No. 2 — (7BD) No. 6:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1905 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1906 OPEN IN FRONT P/T LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH circuit is open.

- Seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB21).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(7BD) No. 6 — (2N) No. 1:

(7BD) No. 2 — (2N) No. 2:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1906 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1907 SHORT IN FRONT P/T LH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH circuit is shorted to ground.

- Seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB29).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 2 — Chassis ground:

(7BD) No. 6 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1907 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1908 SHORT IN FRONT P/T LH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH circuit is shorted to power supply.

- Seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB21).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 2 (+) — Chassis ground (−):

(7BD) No. 6 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1908 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1909 SHORT IN FRONT P/T LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between seat belt pretensioner harness LH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB21).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and all connector terminals in the test harness BD.

Connector & terminal

(7BD) No. 2 — All terminals in test harness BD (except for (7BD) No. 2):

(7BD) No. 6 — All terminals in test harness BD (except for (7BD) No. 6):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1909 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1910 SHORT IN FRONT P/T RH(ADAPTIVE)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH (adaptive) circuit is shorted.

- Adaptive force limiter RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB82) from the adaptive force limiter RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB82).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH (ADAPTIVE)) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) terminals in test harness BD.

Connector & terminal

(5BD) No. 13 — (5BD) No. 20:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1910 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1911 OPEN IN FRONT P/T RH (ADAPTIVE)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH (adaptive) circuit is open.

- Adaptive force limiter RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB82) from the adaptive force limiter RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB82).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH (ADAPTIVE)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(5BD) No. 13 — (2N) No. 2:

(5BD) No. 20 — (2N) No. 1:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1911 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1912 SHORT IN FRONT P/T RH(ADAPTIVE/TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH (adaptive) circuit is shorted to ground.

- Adaptive force limiter RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB82) from the adaptive force limiter RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB82).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH (ADAPTIVE)) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 13 — Chassis ground:

(5BD) No. 20 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1912 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1913 SHORT IN FRONT P/T RH(ADAPTIVE/TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness RH (adaptive) circuit is shorted to power supply.

- Adaptive force limiter RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB82) from the adaptive force limiter RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB82).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH (ADAPTIVE)) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 13 (+) — Chassis ground (−):

(5BD) No. 20 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1913 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1914 SHORT IN FRONT P/T LH(ADAPTIVE)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH (adaptive) circuit is shorted.

- Adaptive force limiter LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB81) from the adaptive force limiter LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB81).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH (ADAPTIVE)) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) terminals in test harness BD.

Connector & terminal

(7BD) No. 3 — (7BD) No. 7:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1914 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1915 OPEN IN FRONT P/T LH (ADAPTIVE)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH (adaptive) circuit is open.

- Adaptive force limiter LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB81) from the adaptive force limiter LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB81).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH (ADAPTIVE)) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(7BD) No. 7 — (2N) No. 1:

(7BD) No. 3 — (2N) No. 2:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1915 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1916 SHORT IN FRONT P/T LH (ADAPTIVE/TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH (adaptive) circuit is shorted to ground.

- Adaptive force limiter LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB81) from the adaptive force limiter LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB81).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH (ADAPTIVE)) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 3 — Chassis ground:

(7BD) No. 7 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1916 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1917 SHORT IN FRONT P/T LH (ADAPTIVE/TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Seat belt pretensioner harness LH (adaptive) circuit is shorted.

- Adaptive force limiter LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB81) from the adaptive force limiter LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB81).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH (ADAPTIVE)) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 3 (+) — Chassis ground (−):

(7BD) No. 7 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1917 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1918 SHORT IN FRONT P/T RH (ADAPTIVE)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between seat belt pretensioner harness RH (adaptive) circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK ADAPTIVE FORCE LIMITER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB82) from the adaptive force limiter RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB82).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS RH (ADAPTIVE)) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and all connector terminals in the test harness BD.

Connector & terminal

(5BD) No. 13 — All terminals in test harness BD (except for (5BD) No. 13):

(5BD) No. 20 — All terminals in test harness BD (except for (5BD) No. 20):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1918 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1919 SHORT IN FRONT P/T LH (ADAPTIVE)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between seat belt pretensioner harness LH (adaptive) circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between airbag control module and adaptive force limiter LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB81) from the adaptive force limiter LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB81).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the adaptive force limiter LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (SEAT BELT PRETENSIONER HARNESS LH (ADAPTIVE)) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and all connector terminals in the test harness BD.

Connector & terminal

(7BD) No. 3 — All terminals in test harness BD (except for (7BD) No. 3):

(7BD) No. 7 — All terminals in test harness BD (except for (7BD) No. 7):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1919 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1920 SHORT IN REAR P/T RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness RH circuit is shorted.

- Rear seatbelt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Using a probe, measure the resistance between the terminals of connector (AB68). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB68) No. 2 — (AB68) No. 3:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all the connectors other than (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1920 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1920 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner RH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1921 OPEN IN REAR P/T RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness RH circuit is open.

- Rear seatbelt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS RH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Using a probe, measure the resistance between the terminals of connector (AB68). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB68) No. 2 — (AB68) No. 3:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all the connectors other than (AB68) of Rear seatbelt pretensioner RH.

2.

Using a probe, short the terminals No. 2 and No. 3 of connector (AB68). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB68) No. 2 — (AB68) No. 3

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1921 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1921 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner RH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1922 SHORT IN REAR P/T RH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness RH circuit is shorted to ground.

- Rear seatbelt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS RH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Using a probe, measure the resistance between the connector (AB68) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB68) No. 2 — Chassis ground:

(AB68) No. 3 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all the connectors other than (AB68) of Rear seatbelt pretensioner RH.

2.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1922 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1922 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner RH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1923 SHORT IN REAR P/T RH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness RH circuit is shorted to power supply.

- Rear seatbelt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS RH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

10.

Using a probe, measure the voltage between the connector (AB68) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB68) No. 2 (+) — Chassis ground (−):

(AB68) No. 3 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all the connectors other than (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1923 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1923 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner RH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1924 SHORT IN REAR P/T RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between rear seat belt pretensioner RH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB26) from seat belt pretensioner RH.

3.

Disconnect the connector (AB82) from the adaptive force limiter RH.

4.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Using a probe, measure the resistance between the connector (AB68) and all connector terminals in test harness BD. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB68) No. 2 — All terminals in test harness BD (except for (5BD) No. 10):

(AB68) No. 3 — All terminals in test harness BD (except for (5BD) No. 17):

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all the connectors other than (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1924 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner RH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB68) of Rear seatbelt pretensioner RH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1924 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner RH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1925 SHORT IN REAR P/T LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness LH circuit is shorted.

- Rear seatbelt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Using a probe, measure the resistance between the terminals of connector (AB67). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB67) No. 2 — (AB67) No. 3:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all the connectors other than (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1925 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1925 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner LH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1926 OPEN IN REAR P/T LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness LH circuit is open.

- Rear seatbelt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS LH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Using a probe, measure the resistance between the terminals of connector (AB67). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB67) No. 2 — (AB67) No. 3:

Is the resistance less than 10 Ω?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all the connectors other than (AB67) of Rear seatbelt pretensioner LH.

2.

Using a probe, short the terminals No. 2 and No. 3 of connector (AB67). AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB67) No. 2 — (AB68) No. 3

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1926 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1926 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner LH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1927 SHORT IN REAR P/T LH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness LH circuit is shorted to ground.

- Rear seatbelt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS LH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Using a probe, measure the resistance between the connector (AB67) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB67) No. 2 — Chassis ground:

(AB67) No. 3 — Chassis ground:

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Connect all the connectors other than (AB67) of Rear seatbelt pretensioner LH.

2.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1927 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1927 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner LH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1928 SHORT IN REAR P/T LH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Rear pretensioner harness LH circuit is shorted to power supply.

- Rear seatbelt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS LH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

10.

Using a probe, measure the voltage between the connector (AB67) and chassis ground. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB67) No. 2 (+) — Chassis ground (−):

(AB67) No. 3 (+) — Chassis ground (−):

Is the voltage less than 1 V?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect all the connectors other than (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1928 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1928 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner LH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1929 SHORT IN REAR P/T LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between rear seat belt pretensioner LH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and Rear seatbelt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK AIRBAG REAR HARNESS (REAR PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB21) from seat belt pretensioner LH.

3.

Disconnect the connector (AB81) from the adaptive force limiter LH.

4.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Using a probe, measure the resistance between the connector (AB67) and all connector terminals in test harness BD. AIRBAG(DIAGNOSTICS)>General Description>PREPARATION TOOL > HOW TO USE PROBE

When measuring the resistance, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB67) No. 2 — All terminals in test harness BD (except for (7BD) No. 10):

(AB67) No. 3 — All terminals in test harness BD (except for (7BD) No. 16):

Is the resistance 1 MΩ or more?

3

Replace the airbag rear harness along with body harness.

3. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all the connectors other than (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1929 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

4

4. CHECK Rear seatbelt pretensioner LH.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Connect the connector (AB67) of Rear seatbelt pretensioner LH.

3.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B1929 displayed? (Current malfunction)

Replace Rear seatbelt pretensioner LH. SEAT BELT SYSTEM>Rear Seat Belt

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed? (Current malfunction)

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19EE SHORT IN FRONT P/T 2 RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between lap belt pretensioner RH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB30).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB82) from the adaptive force limiter RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (2N) in the test harness N and all connector terminals in the test harness BD.

Connector & terminal

(2N) No. 1 — All terminals in test harness BD (except for (5BD) No. 18):

(2N) No. 2 — All terminals in test harness BD (except for (5BD) No. 11):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19EE displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19EF SHORT IN FRONT P/T 2 LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

Short malfunction between lap belt pretensioner LH circuit and other circuits

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB29).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB81) from the adaptive force limiter LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (2N) in the test harness N and all connector terminals in the test harness BD.

Connector & terminal

(2N) No. 1 — All terminals in test harness BD (except for (7BD) No. 17):

(2N) No. 2 — All terminals in test harness BD (except for (7BD) No. 11):

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19EF displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F0 SHORT IN FRONT P/T 2 RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness RH circuit is shorted.

- Lap seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB30).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS RH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB82) from the adaptive force limiter RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) terminals in test harness BD.

Connector & terminal

(5BD) No. 18 — (5BD) No. 11:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F0 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F1 OPEN IN FRONT P/T 2 RH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness RH circuit is open.

- Lap seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB30).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS RH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB82) from the adaptive force limiter RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(5BD) No. 18 — (2N) No. 1:

(5BD) No. 11 — (2N) No. 2:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F1 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F2 SHORT IN FRONT P/T 2 RH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness RH circuit is shorted to ground.

- Lap seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB30).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS RH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB82) from the adaptive force limiter RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 18 — Chassis ground:

(5BD) No. 11 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F2 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F3 SHORT IN FRONT P/T 2 RH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness RH circuit is shorted to power supply.

- Lap seat belt pretensioner RH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB30) from the lap seat belt pretensioner RH.

3.

Connect the connector (1N) in the test harness N to the connector (AB30).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner RH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS RH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB26) from seat belt pretensioner RH.

4.

Disconnect the connector (AB82) from the adaptive force limiter RH.

5.

Disconnect the connector (AB68) from Rear seatbelt pretensioner RH.

6.

Disconnect the connector (AB33) from curtain airbag module RH.

7.

Disconnect the connector (AB24) from side airbag module RH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (5BD) in the test harness BD and chassis ground.

Connector & terminal

(5BD) No. 18 (+) — Chassis ground (−):

(5BD) No. 11 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F3 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F4 SHORT IN FRONT P/T 2 LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness LH circuit is shorted.

- Lap seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB29).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB81) from the adaptive force limiter LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) terminals in test harness BD.

Connector & terminal

(7BD) No. 17 — (7BD) No. 11:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F4 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F5 OPEN IN FRONT P/T 2 LH

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness LH circuit is open.

- Lap seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB29).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS LH) (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB81) from the adaptive force limiter LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and connector (2N) in the test harness N.

Connector & terminal

(7BD) No. 17 — (2N) No. 1:

(7BD) No. 11 — (2N) No. 2:

Is the resistance less than 10 Ω?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F5 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F6 SHORT IN FRONT P/T LH (TO GROUND)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness LH circuit is shorted to ground.

- Lap seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB29).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS LH) (SHORTED TO GROUND).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB81) from the adaptive force limiter LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Measure the resistance between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 11 — Chassis ground:

(7BD) No. 17 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

2.

Connect all connectors.

3.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F6 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B19F7 SHORT IN FRONT P/T 2 LH (TO +B)

Diagnosis start condition:

When the ignition voltage is 10 — 16 V.

DTC detecting condition:

- Lap seat belt pretensioner harness LH circuit is shorted to power supply.

- Lap seat belt pretensioner LH is faulty.

- Airbag control module is faulty.

Wiring diagram:

Airbag system WIRING SYSTEM>Airbag System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. AIRBAG(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module and the lap seat belt pretensioner LH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

2

2. CHECK LAP SEAT BELT PRETENSIONER.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector (AB29) from lap seat belt pretensioner LH.

3.

Connect the connector (1N) in the test harness N to the connector (AB29).

4.

Connect the airbag resistor to the connector (2N) of test harness N.

5.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the lap seat belt pretensioner LH. SEAT BELT SYSTEM>Front Seat Belt

3

3. CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS LH) (SHORTED TO POWER SUPPLY).
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the airbag resistor from the connector (2N) of test harness N.

3.

Disconnect the connector (AB21) from seat belt pretensioner LH.

4.

Disconnect the connector (AB81) from the adaptive force limiter LH.

5.

Disconnect the connector (AB67) from rear seat belt pretensioner LH.

6.

Disconnect the connector (AB31) from curtain airbag module LH.

7.

Disconnect the connector (AB19) from side airbag module LH.

8.

Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

9.

Connect the connector (1BD) in the test harness BD to the connectors (AB6, AB17, AB18).

10.

Install the ground terminal to the battery sensor and turn the ignition switch to ON.REPAIR CONTENTS>NOTE > BATTERY

11.

Measure the voltage between connector (7BD) in the test harness BD and chassis ground.

Connector & terminal

(7BD) No. 11 (+) — Chassis ground (−):

(7BD) No. 17 (+) — Chassis ground (−):

Is the voltage less than 1 V?

4

Replace the airbag rear harness along with body harness.

4. CHECK AIRBAG CONTROL MODULE.
1.

Turn the ignition switch to OFF, and wait for 60 seconds or more after disconnecting the ground terminal from the battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the test harness BD from the connectors (AB6, AB17, AB18).

3.

Connect all connectors.

4.

Using the Subaru Select Monitor, perform the clear memory of [Airbag]. COMMON(diag)>Clear memory

5.

Execute the inspection mode. AIRBAG(DIAGNOSTICS)>Inspection Mode

6.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B19F7 displayed? (Current malfunction)

Replace the airbag control module. AIRBAG SYSTEM>Airbag Control Module

5

5. CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC of [Airbag] using the Subaru Select Monitor. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is any other DTC displayed?

Perform the diagnosis for other displayed DTCs. AIRBAG(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

Finish the diagnosis.

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF

Diagnosis start condition:

Ignition voltage remains at 10 V or more for 1 second.

DTC detecting condition:

Detected when malfunction occurs in CAN line.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"

DTC detecting condition:

Detected when CAN data from ECM does not arrive.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0101 LOST COMMUNICATION WITH TCM

DTC detecting condition:

Detected when CAN data from TCM does not arrive.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE

DTC detecting condition:

Detected when CAN data from VDC CM does not arrive.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE

DTC detecting condition:

Detected when CAN data from VDC CM does not arrive.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE

DTC detecting condition:

Detected when CAN data from body integrated unit does not arrive.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE

DTC detecting condition:

Detected when CAN data from combination meter does not arrive.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"

DTC detecting condition:

Detected when CAN data from ECM is abnormal.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0402 INVALID DATA RECEIVED FROM TCM

DTC detecting condition:

This is detected when CAN data from TCM is abnormal.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE

DTC detecting condition:

Detected when CAN data from VDC CM is abnormal.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0417 INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE

DTC detecting condition:

Detected when CAN data from VDC CM is abnormal.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE

DTC detecting condition:

Detected when CAN data from body integrated unit is abnormal.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

AIRBAG(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE

DTC detecting condition:

Detected when CAN data from combination meter is abnormal.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE