POWER REAR GATE(DIAGNOSTICS)
PRG(diag)

POWER REAR GATE(DIAGNOSTICS) > Basic Diagnostic Procedure
PROCEDURE

1. PERFORM CUSTOMER INTERVIEW.

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

Did you interview the customer?

2

Perform the interview, and 2

2. INITIALIZATION OF POWER REAR GATE SYSTEM.
1.

Open the power rear gate manually.

2.

Manually close the power rear gate to the partially latched position, and operate the auto closer to fully close the power rear gate.

3.

Use any power rear gate operation switch to activate the power rear gate auto operation.

Is the initialization operation possible?

4

3

3. PERFORM BASIC INSPECTION.

Perform basic inspection. POWER REAR GATE(DIAGNOSTICS)>General Description>INSPECTION

Is the check result OK?

4

Repair the faulty part found in basic inspection, and 4

4. 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 [Power Rear Gate].

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

Is communication possible?

5

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

5. CHECK DTC.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Record the DTC, time stamp and freeze frame data, and 6

7

6. PERFORM DIAGNOSIS.
1.

Perform the diagnosis according to the DTC. POWER REAR GATE(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 [Power Rear Gate]. COMMON(diag)>Clear memory

4.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Repeat 6 until DTC is not shown.

Finish the diagnosis.

7. CHECK DIAGNOSTICS WITH PHENOMENON.

Check “Diagnostics with Phenomenon”. POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon

Is there a corresponding symptom in the Diagnostics with Phenomenon?

Perform diagnosis according to the procedures in the diagnostics with phenomenon. POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon

Power rear gate system is normal.

POWER REAR GATE(DIAGNOSTICS) > Check List for Interview
CHECK

Inspect the following items regarding the vehicle’s state.

Power Rear Gate System Check List for Interview   Date the Vehicle is Received  Year  Month  Day
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 |
Time stamp |
Control module item number/Ver. |
Condition of trouble occurrence (How the trouble occurs) |
Vehicle bring-in history information |

POWER REAR GATE(DIAGNOSTICS) > General Description
CAUTION
1. AIRBAG SYSTEM

When removing airbag related parts, refer to Cautions for Airbags. AIRBAG SYSTEM>General Description>CAUTION

POWER REAR GATE(DIAGNOSTICS) > General Description
INSPECTION
1. BASIC INSPECTION

Before performing diagnosis, check the following items which might affect power rear gate related problems.

1.

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

2.

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

POWER REAR GATE(DIAGNOSTICS) > General Description
PREPARATION TOOL
1. SPECIAL TOOL

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.

2. GENERAL TOOL

TOOL NAME | REMARKS
Circuit tester | Used for measuring resistance, voltage and current.
DST‐i | Used together with Subaru Select Monitor 4.
Oscilloscope | Used for measuring the waveform.

POWER REAR GATE(DIAGNOSTICS) > General Description
SYSTEM BLOCK DIAGRAM
POWER REAR GATE(DIAGNOSTICS) > Electrical Component Location
LOCATION

(1) | Power rear gate CM | (5) | Power rear gate buzzer | (9) | Power rear gate touch sensor (RH)
(2) | Power rear gate drive unit | (6) | Power rear gate lock switch | (10) | Rear gate opener button
(3) | Power rear gate touch sensor (LH) | (7) | Power rear gate inner switch
(4) | Power rear gate auto closer | (8) | Power rear gate stay

(1) | Memory height switch | (3) | Body integrated unit | (4) | Data link connector
(2) | Power rear gate driver’s switch |  |  |  |

(1) | Rear gate/trunk SW (access key) (With keyless access with push button start system) | (2) | Rear gate/trunk SW (keyless transmitter) (Without keyless access with push button start system) |  |

POWER REAR GATE(DIAGNOSTICS) > Control Module I/O Signal
ELECTRICAL SPECIFICATION
1. POWER REAR GATE CONTROL MODULE

Terminal No. | Contents | Measuring condition | Standard
(R422) No. 1 ←→ (R422) No. 9 | Touch sensor | When sensor is ON | 2.7 V or less
(R422) No. 2 | — | — | —
(R422) No. 3 ←→ (R422) No. 9 | Latch switch | When rear gate is fully closed | 3.7 — 16 V
(R422) No. 4 ←→ (R422) No. 9 | Courtesy switch | When rear gate is fully closed | 3.7 — 16 V
(R422) No. 5 ←→ (R422) No. 9 | Sector switch | When rear gate is fully closed | 3.7 — 16 V
(R422) No. 6 ←→ (R422) No. 9 | Power rear gate inner SW | When power rear gate inner switch is ON | Less than 1 V
(R422) No. 7 | — | — | —
(R422) No. 8 ←→ Chassis ground | Memory height switch | When memory height switch is ON | Less than 1 V
(R422) No. 9 | Switch GND | — | —
(R422) No. 10 | — | — | —
(R422) No. 11 ←→ (R422) No. 9 | Ratchet switch | When rear gate is fully closed | Less than 1 V
(R422) No. 12 | — | — | —
(R422) No. 13 ←→ Chassis ground | Power rear gate driver’s switch | When driver’s switch is ON | Less than 1 V
(R422) No. 14 ←→ Chassis ground | LIN communication line | — | —
(R422) No. 15 ←→ Chassis ground | Hazard output | When hazard is not operating | Less than 1 V
(R422) No. 16 ←→ Chassis ground | Ignition SW | When ignition switch is ON | 9 — 16 V
(R423) No. 1 ←→ Chassis ground | Battery power supply (+POWER B) | Always | 9 — 16 V
(R423) No. 2 ←→ Chassis ground | Closer (CLOSE) | When power rear gate auto closer is in pull-in operation | 9 — 16 V
(R423) No. 3 ←→ Chassis ground | Closer (OPEN) | When power rear gate auto closer is performing the release operation | 9 — 16 V
(R423) No. 4 ←→ Chassis ground | GND | Always | Less than 1 Ω
(R423) No. 5 | — | — | —
(R423) No. 6 ←→ Chassis ground | Battery power supply (+B) | Always | 9 — 16 V
(R424) No. 1 | — | — | —
(R424) No. 2 | — | — | —
(R424) No. 3 ←→ Chassis ground | Motor (CLOSE) | When auto-closing is in operation | Pulse
(R424) No. 4 ←→ Chassis ground | Motor (OPEN) | When auto-open is in operation | Pulse
(R424) No. 5 | Buzzer (−) | — | —
(R424) No. 6 ←→ (R424) No. 5 | Buzzer (+) | When buzzer sounds | Pulse
(R424) No. 7 | — | — | —
(R424) No. 8 ←→ Chassis ground | HALL RETURN | — | —
(R424) No. 9 ←→ (R424) No. 8 | HALL2 | — | —
(R424) No. 10 ←→ (R424) No. 8 | HALL1 | — | —
(R424) No. 11 ←→ Chassis ground | HALL FEED | — | —
(R424) No. 12 | — | — | —
(R424) No. 13 | — | — | —
(R424) No. 14 | — | — | —

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure for Subaru Select Monitor Communication
INSPECTION

Trouble symptom:

Communication is impossible with Subaru Select Monitor.

Detecting condition:

- Defective harness

- Power supply circuit malfunction

- Power rear gate CM malfunctioning

- Body integrated unit malfunctioning

- Defective LIN communication circuit

- Defective Subaru Select Monitor

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

If the communication with the body integrated unit is not possible either, refer to LAN SYSTEM (DIAGNOSTICS). LAN SYSTEM (DIAGNOSTICS)>Diagnostic Procedure for Subaru Select Monitor Communication

1. CHECK FUSE.
1.

Turn the ignition switch to OFF.

2.

Check the fuse.

Is the check result OK?

2

Replace the fuse. If the replaced fuse blows out easily, repair the ground short circuit in the harness between the battery and Power rear gate CM.

2. CHECK POWER SUPPLY CIRCUIT (OPEN).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

2.

Turn the ignition switch to ON.

3.

Using a tester, measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 16 (+) — Chassis ground (−):

(R423) No. 6 (+) — Chassis ground (−):

Is the voltage 10 V or more?

3

Repair the open circuit of the harness between Power rear gate CM connector and the fuse.

3. CHECK GROUND CIRCUIT (OPEN).
1.

Turn the ignition switch to OFF.

2.

Using a tester, measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R423) No. 4 — Chassis ground:

Is the resistance less than 1 Ω?

4

Repair the open circuit in harness between Power rear gate CM connector and chassis ground.

4. CHECK BODY INTEGRATED UNIT.

Check the body control system. BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure

Is the check result OK?

5

Perform the inspection according to the diagnosis for body control system.

5. CHECK SUBARU SELECT MONITOR.
1.

Connect the Subaru Select Monitor to another vehicle.

2.

Check whether the communication for initializing can be executed normally.

Is communication normal?

6

Repair or replace the Subaru Select Monitor.

6. CHECK Power rear gate CM.
1.

Connect the Power rear gate CM connector in the order of (R422) → (R423).

2.

Communicate with [Power Rear Gate] using the Subaru Select Monitor.

Is communication possible?

- The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

  In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

POWER REAR GATE(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. POWER REAR GATE(DIAGNOSTICS)>Data Monitor>LIST

- Communication with Power rear gate CM and Subaru Select Monitor takes time. It takes time to show all the items, and the status cannot be reflected on the display. Therefore, select items only that need to be checked or up to two to three items, when checking the status. (When displaying selected items only, place a check mark for the item to be displayed and press the “Select” button.)

POWER REAR GATE(DIAGNOSTICS) > Data Monitor
LIST

Item name | Contents | Standard | Note
+POWER B | Power supply voltage value Display range: 0.00 — 21.5 V | 10.5 — 16 V | —
+ B | Power rear gate CM power supply voltage value Display range: 0.00 — 21.5 V | 10.5 — 16 V | —
IGN SW | Ignition switch status Display range: ON/OFF | ON: IGN ON OFF: IGN OFF | —
Memory stop SW | Memorized height switch status Display range: ON/OFF | ON: When the switch is ON OFF: When the switch is OFF | —
D SW | Driver’s seat switch status Display range: ON/OFF | ON: When the switch is ON OFF: When the switch is OFF | —
R/G inner SW | Power rear gate inner switch condition Display range: ON/OFF | ON: When the switch is ON OFF: When the switch is OFF | —
COURTESY SW | Courtesy switch status Display range: ON/OFF | ON: When the switch is ON OFF: When the switch is OFF | —
LATCH SW | Latch switch status Display range: ON/OFF | ON: When the switch is ON OFF: When the switch is OFF | —
SECTOR SW | Sector switch status Display range: ON/OFF | ON: When the switch is OFF (No continuity) OFF: When the switch is ON (Continuity exists) | —
PRG MOTOR (OPEN) | Output status of rear gate motor open signal Display range: OPEN/OFF | OPEN: When rear gate is in open operation OFF: OFF | —
PRG MOTOR (CLOSE) | Output status of rear gate motor close signal Display range: CLOSE/OFF | CLOSE: When rear gate is in close operation OFF: OFF | —
CLOSER (OPEN) | Output status of power rear gate auto closer motor open signal Display range: OPEN/OFF | OPEN: When open signal is output OFF: OFF | “OPEN”/“CLOSE” may be displayed while the motor is stopped. However, there is no problem if the motor has been stopped.
CLOSER (CLOSE) | Output status of power rear gate auto closer motor close signal Display range: CLOSE/OFF | CLOSE: When close signal is output OFF: OFF
BUZZER | Buzzer output status Display range: ON/OFF | ON: When buzzer sounds OFF: When buzzer stops | —
HAZARD | Hazard output status Display range: ON/OFF | ON: When hazard is ON OFF: When hazard is OFF | —
Connection Continuing Flag | Display range: Continuation request flag exists/ Continuation request flag does not exist | Continuation request flag exists: Continuation request flag does not exist: | —
Idle Stop Cancel Flag | Auto Start Stop cancel request status Display range: Cancel request ON / Cancel request OFF | Cancel request ON: When Auto Start Stop cancel request is active Cancel request OFF: When Auto Start Stop is active | —
IGN | Ignition switch status (body integrated unit) Display range: ON/OFF | ON: IGN ON OFF: IGN OFF | —
R/G Open SW | Rear gate opener button condition Display range: OFF / Tap / Press and hold | OFF: When OFF Tap: When pressed shortly Press and hold: When pressed long | —
Front Wheel Speed | Status of vehicle speed Display range: 0 — 229.5 km/h (0 — 142.6 MPH) | Shows vehicle speed | —
Normal Keyless R/G SW | Status of normal keyless R/G button Display range: OFF / Tap / Press and hold | OFF: When OFF Tap: When pressed shortly Press and hold: When pressed long | —
Smart Keyless R/G SW | Status of keyless access key R/G button Display range: OFF / Tap / Press and hold | OFF: When OFF Tap: When pressed shortly Press and hold: When pressed long | —
Idle Stop Control | Auto Start Stop control status Display range: During Auto Start Stop control / Other than during Auto Start Stop control | During Auto Start Stop control: The vehicle is under Auto Start Stop control Other than during Auto Start Stop control: The vehicle is not under Auto Start Stop control | —
P range SW | Status of shift lever P Display range: ON/OFF | ON: P range OFF: Other than P range | —
MT/AT | Vehicle information (body integrated unit) Display range: MT/AT | MT: MT model AT: AT model | —
R/G Open Authorized State | Status of PRG permission Display range: Authorized state / Unauthorized state | Authorized state: PRG open permitted state Unauthorized state: PRG open not permitted state | —
Answer-Back Buzzer Information | Buzzer output status Display range: ON/OFF | ON: When buzzer sounds OFF: When buzzer stops | —
EPB Operation Status | Electronic parking brake condition | Error: When EPB error occurs Release condition: When EPB is released Operation condition: When EPB operates Operation in-progress: EPB operation in-progress Release in-progress: EPB release in-progress Dynamic parking: When dynamic parking operates | —
TOUCH SENSOR | Touch sensor status | ON: Sensor is ON OFF: Sensor is OFF | —
Rear Gate Target Speed | Rear gate target speed | Displays rear gate open/close target speed | —
Rear Gate Speed | Rear gate actual speed | Displays rear gate open/close speed | —
PRG MOTOR Duty | Rear gate motor DUTY output value | Displays rear gate motor DUTY output | —
Pulse-count 2 | Rear gate motor pulse count output | Displays rear gate position | —
Rear Gate Pos Init Flag | Rear gate position initialization status Display range: ON/OFF | ON: When pulse count is recognized (when initialization is finished) OFF: When pulse count is unknown | —
PRG State 2 | PRG status Display range: Full open / Suspending / Operating / Full close | Full open: Pulse count is at full open stop position or more Suspending: Pulse count is at full open stop position or less Operating: When PRG motor or closer motor is operating Full close: Full latch status | —

POWER REAR GATE(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. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Trouble Code (DTC)
LIST

DTC | Item | Reference
B2500 | BATTERY POWER SUPPLY | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2500 BATTERY POWER SUPPLY
B2506 | PRG MOTOR CURRENT SURGE | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2506 PRG MOTOR CURRENT SURGE
B2507 | PRG MOTOR CIRCUIT OPEN | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2507 PRG MOTOR CIRCUIT OPEN
B2508 | PRG MOTOR CIRCUIT LOW | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2508 PRG MOTOR CIRCUIT LOW
B250B | ROTATION SENSOR A STUCK | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250B ROTATION SENSOR A STUCK
B250D | ROTATION SENSOR B STUCK | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250D ROTATION SENSOR B STUCK
B250F | ROTATION SENSOR PULSE/COUNT | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250F ROTATION SENSOR PULSE/COUNT
B2511 | ROTATION SENSOR PULSE/REVERSE DIRECTION | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2511 ROTATION SENSOR PULSE/REVERSE DIRECTION
B2513 | LATCH CONDITION | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2513 LATCH CONDITION
B2514 | IGNITION | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2514 IGNITION
B2515 | LATCH SW | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2515 LATCH SW
B2516 | SECTOR SW | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2516 SECTOR SW
B2519 | POWER +B OPEN | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2519 POWER +B OPEN
B251A | LIN CONNECTION NO-RECEIVE DATA | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B251A LIN CONNECTION NO-RECEIVE DATA
B2522 | EEPROM | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2522 EEPROM
B2524 | TOUCH SENSOR CIRCUIT/OPEN | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2524 TOUCH SENSOR CIRCUIT/OPEN
B2525 | ROTATION SENSOR POWER SUPPLY | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2525 ROTATION SENSOR POWER SUPPLY
B2526 | AUTO CLOSER MOTOR CIRCUIT OPEN | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2526 AUTO CLOSER MOTOR CIRCUIT OPEN
B2527 | AUTO CLOSER MOTOR CIRCUIT LOW | POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2527 AUTO CLOSER MOTOR CIRCUIT LOW

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2500 BATTERY POWER SUPPLY

DTC detecting condition:

Detected when the power supply voltage is less than 9 V or 16 V or more at starting power rear gate operation (when SW is operated).

Trouble symptom:

The power rear gate does not operate.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Is auto operation activated?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2500 displayed? (Current malfunction)

3

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

3. CHECK FUSE.
1.

Turn the ignition switch to OFF.

2.

Check the fuse. POWER REAR GATE SYSTEM>Relay and Fuse

Is the check result OK?

4

Replace the defective fuse. When the replaced fuse is blown immediately, repair the short circuit.

4. CHECK HARNESS.
1.

Disconnect the Power rear gate CM connector (R423).

2.

Using a tester, measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R423) No. 6 (+) — Chassis ground (−):

Is the voltage 9 V or more?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS.

Using a tester, measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R423) No. 4 — Chassis ground:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK CONNECTOR.

Check the Power rear gate CM connector (R423).

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2506 PRG MOTOR CURRENT SURGE

DTC detecting condition:

When excessive load is applied to the power rear gate motor, and overcurrent is detected.

Trouble symptom:

The power rear gate auto-operation does not function, operation speed is slow, and incorrect reverse operation occurs.

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

1. CHECK FOR OBSTACLES.

Check that the peripheral area of the rear gate is free from snow or any object that blocks open/close operation.

Is the peripheral area of the rear gate free from snow or any object that blocks open/close operation?

2

Remove the obstacles, and 2

2. CHECK POWER REAR GATE OPERATION.
1.

Turn the ignition switch to OFF.

2.

Fully close the rear gate.

3.

Turn the memory height switch to OFF.

4.

Perform the auto-open operation.

5.

Perform the auto-close operation from the full open position.

Is the operation OK?

4

3

3. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2506 displayed? (Current malfunction)

4

5

4. CHECK DTC.
1.

Turn the ignition switch to OFF.

2.

Perform auto-operation with the procedure in step 2.

3.

Turn the ignition switch to ON.

4.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2506 displayed? (Current malfunction)

5

System is normal. Temporary excess load was applied.

5. CHECK Power rear gate drive unit/POWER REAR GATE STAY WITH MANUAL OPERATION.
1.

Turn the ignition switch to OFF.

2.

Fully close the rear gate.

3.

Press and hold the rear gate opener button to perform the manual operation.

4.

Check the weight while performing the manual operation.

Is the operation possible without abnormal weight?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Replace Power rear gate drive unit and power rear gate stay. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2507 PRG MOTOR CIRCUIT OPEN

DTC detecting condition:

When the open circuit in motor circuit is detected during the motor operation.

Trouble symptom:

The power rear gate does not operate.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Is auto operation activated?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2507 displayed? (Current malfunction)

4

3

3. CHECK Power rear gate drive unit.
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector in the order of (R423) → (R424).

3.

Measure the internal resistance of Power rear gate drive unit.

Connector & terminal

No. 1 — No. 4:

Is the resistance less than 1 Ω?

4

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

4. CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between Power rear gate CM connector and Power rear gate drive unit connector.

Connector & terminal

(R424) No. 4 — (R486) No. 4:

(R424) No. 3 — (R486) No. 1:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 4 — Chassis ground:

(R424) No. 3 — Chassis ground:

Is the resistance 1 MΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK CONNECTOR.

Check for poor contact of connector.

Is the check result OK?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the poor contact of connector.

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2508 PRG MOTOR CIRCUIT LOW

DTC detecting condition:

When the short to ground in motor circuit is detected.

Trouble symptom:

The power rear gate does not operate.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Is auto operation activated?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2508 displayed? (Current malfunction)

4

3

3. CHECK HARNESS (GROUND SHORT CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector in the order of (R423) → (R424).

3.

Disconnect the Power rear gate drive unit connector.

4.

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 4 — Chassis ground:

(R424) No. 3 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK Power rear gate drive unit.

Measure the internal resistance of Power rear gate drive unit.

Terminals

No. 1 — No. 4:

Is the resistance less than 1 Ω?

5

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

5. CHECK CONNECTOR.

Check for poor contact of connector.

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B250B ROTATION SENSOR A STUCK

DTC detecting condition:

When output of power rear gate drive unit rotation sensor does not exist during the auto-operation.

Trouble symptom:

The power rear gate does not operate.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Does it work as fully open → fully close, and fully close → fully open?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is B250B, B250D or B2525 displayed? (Current malfunction)

4

3

3. CHECK ROTATION SENSOR SIGNAL.

Using an oscilloscope, measure the waveform between Power rear gate drive unit connectors.

Connector & terminal

(R486) No. 3 (+) — (R486) No. 6 (−):

(R486) No. 2 (+) — (R486) No. 6 (−):

Does the voltage change when the power rear gate is manually opened/closed? (Approx. 0 V ←→ Approx. 12 V)

4

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

4. CHECK Power rear gate drive unit.

Using an oscilloscope, measure the waveform between Power rear gate drive unit connectors.

Connector & terminal

(R486) No. 3 (+) — (R486) No. 5 (−):

(R486) No. 2 (+) — (R486) No. 5 (−):

Does the waveform change as noted in the margin when the power rear gate is manually opened/closed?

5

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

5. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector.

3.

Disconnect the Power rear gate drive unit connector.

4.

Measure the resistance between Power rear gate CM connector and Power rear gate drive unit connector.

Connector & terminal

(R424) No. 8 — (R486) No. 6:

(R424) No. 9 — (R486) No. 2:

(R424) No. 10 — (R486) No. 3:

(R424) No. 11 — (R486) No. 5:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 9 — Chassis ground:

(R424) No. 10 — Chassis ground:

(R424) No. 11 — Chassis ground:

Is the resistance 1 MΩ or more?

7

Repair or replace the short circuit of the harness.

7. CHECK HARNESS (SHORT CIRCUIT TO POWER SUPPLY).

Measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 9 — Chassis ground:

(R424) No. 10 — Chassis ground:

(R424) No. 11 — Chassis ground:

Is the voltage less than 1 V?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the short circuit of the harness.

- When the power rear gate is open

  (A) | Approx. 10 V | (B) | Cycles change according to the time the power rear gate is opened/closed. |  |

- When the power rear gate is closed

  (A) | Approx. 10 V | (B) | Cycles change according to the time the power rear gate is opened/closed. |  |

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B250D ROTATION SENSOR B STUCK

For the diagnostic procedure, refer to DTC B250B. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250B ROTATION SENSOR A STUCK

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B250F ROTATION SENSOR PULSE/COUNT

DTC detecting condition:

Output of the power rear gate drive unit rotation sensor is out of specified range.

Trouble symptom:

Auto operation stops halfway.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Does it work as fully open → fully close, and fully close → fully open?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B250F displayed? (Current malfunction)

3

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

3. CHECK DATA MONITOR.
1.

Activate the auto closer to a fully closed position.

2.

Check [Pulse-count 2] in fully closed and fully open status using Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

When confirming the data monitor, display only one item to be checked at a time. When the displayed items are too many, changes in the pulses will not be retrieved.

Does the value show 0 pulses when fully closed? Does the value show approximately 2000 pulses when fully open?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

4

4. CHECK ROTATION SENSOR SIGNAL.

Using an oscilloscope, measure the waveform between Power rear gate drive unit connectors.

Connector & terminal

(R486) No. 3 (+) — (R486) No. 6 (−):

(R486) No. 2 (+) — (R486) No. 6 (−):

Does the voltage change when the power rear gate is manually opened/closed? (Approx. 0 V ←→ Approx. 12 V)

5

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

5. CHECK Power rear gate drive unit.

Using an oscilloscope, measure the waveform between Power rear gate drive unit connectors.

Connector & terminal

(R486) No. 3 (+) — (R486) No. 5 (−):

(R486) No. 2 (+) — (R486) No. 5 (−):

Does the waveform change as noted in the margin when the power rear gate is manually opened/closed?

6

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

6. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector.

3.

Disconnect the Power rear gate drive unit connector.

4.

Measure the resistance between Power rear gate CM connector and Power rear gate drive unit connector.

Connector & terminal

(R424) No. 8 — (R486) No. 6:

(R424) No. 9 — (R486) No. 2:

(R424) No. 10 — (R486) No. 3:

(R424) No. 11 — (R486) No. 5:

Is the resistance less than 10 Ω?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 9 — Chassis ground:

(R424) No. 10 — Chassis ground:

(R424) No. 11 — Chassis ground:

Is the resistance 1 MΩ or more?

8

Repair or replace the short circuit of the harness.

8. CHECK HARNESS (SHORT CIRCUIT TO POWER SUPPLY).

Measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 9 — Chassis ground:

(R424) No. 10 — Chassis ground:

(R424) No. 11 — Chassis ground:

Is the voltage less than 1 V?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the short circuit of the harness.

- When the power rear gate is open

  (A) | Approx. 10 V | (B) | Cycles change according to the time the power rear gate is opened/closed. |  |

- When the power rear gate is closed

  (A) | Approx. 10 V | (B) | Cycles change according to the time the power rear gate is opened/closed. |  |

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2511 ROTATION SENSOR PULSE/REVERSE DIRECTION

DTC detecting condition:

When output of the power rear gate drive unit rotation sensor is different from the direction that it should be.

Trouble symptom:

Auto-operation does not function.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Does it work as fully open → fully close, and fully close → fully open?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2511 displayed? (Current malfunction)

3

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

3. CHECK DATA MONITOR.
1.

Activate the auto closer to a fully closed position.

2.

Check [Pulse-count 2] in fully closed and fully open status using Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

When confirming the data monitor, display only one item to be checked at a time. When the displayed items are too many, changes in the pulses will not be retrieved.

Does the pulse count increase during the open operation? Does the pulse count decrease during the close operation?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

4

4. CHECK ROTATION SENSOR SIGNAL.

Using an oscilloscope, measure the waveform between Power rear gate drive unit connectors.

Connector & terminal

(R486) No. 3 (+) — (R486) No. 6 (−):

(R486) No. 2 (+) — (R486) No. 6 (−):

Does the voltage change when the power rear gate is manually opened/closed? (Approx. 0 V ←→ Approx. 12 V)

5

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

5. CHECK Power rear gate drive unit.

Using an oscilloscope, measure the waveform between Power rear gate drive unit connectors.

Connector & terminal

(R486) No. 3 (+) — (R486) No. 5 (−):

(R486) No. 2 (+) — (R486) No. 5 (−):

Does the waveform change as noted in the margin when the power rear gate is manually opened/closed?

6

Replace Power rear gate drive unit. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit

6. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector.

3.

Disconnect the Power rear gate drive unit connector.

4.

Measure the resistance between Power rear gate CM connector and Power rear gate drive unit connector.

Connector & terminal

(R424) No. 8 — (R486) No. 6:

(R424) No. 9 — (R486) No. 2:

(R424) No. 10 — (R486) No. 3:

(R424) No. 11 — (R486) No. 5:

Is the resistance less than 10 Ω?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 9 — Chassis ground:

(R424) No. 10 — Chassis ground:

(R424) No. 11 — Chassis ground:

Is the resistance 1 MΩ or more?

8

Repair or replace the short circuit of the harness.

8. CHECK HARNESS (SHORT CIRCUIT TO POWER SUPPLY).

Measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 9 — Chassis ground:

(R424) No. 10 — Chassis ground:

(R424) No. 11 — Chassis ground:

Is the voltage less than 1 V?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the short circuit of the harness.

- When the power rear gate is open

  (A) | Approx. 10 V | (B) | Cycles change according to the time the power rear gate is opened/closed. |  |

- When the power rear gate is closed

  (A) | Approx. 10 V | (B) | Cycles change according to the time the power rear gate is opened/closed. |  |

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2513 LATCH CONDITION

DTC detecting condition:

When the status of power rear gate auto closer changes differently from normal condition.

Trouble symptom:

Auto-operation does not function.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK REAR GATE.

Visually inspect the rear gate.

Is it free from any foreign matters caught in and installed without misalignment?

2

Remove the foreign matters. Adjust the alignment.

2. CHECK POWER REAR GATE AUTO CLOSER.
1.

Close the rear gate fully.

2.

Disconnect the power rear gate CM connectors in the order of (R423) → (R422).

3.

Disconnect the power rear gate auto closer connector.

4.

Check the continuity within the power rear gate CM connector (R422).

Terminals

No. 3 — No. 9 (latch switch):

No. 4 — No. 9 (courtesy switch):

No. 5 — No. 9 (sector switch):

No. 11 — No. 9 (ratchet switch):

Is the continuity condition as follows?

Latch switch: No continuity

Courtesy switch: No continuity

Sector switch: No continuity

Ratchet switch: Continuity present

3

Replace the power rear gate auto closer. POWER REAR GATE SYSTEM>Power Rear Gate Auto Closer

3. CHECK POWER REAR GATE AUTO CLOSER.
1.

Connect the disconnected connectors. Connect the power rear gate CM connectors in the order of (R422) → (R423).

2.

Press the operation switch to perform the auto-open operation to a full open position.

3.

Disconnect the power rear gate CM connectors in the order of (R423) → (R422).

4.

Disconnect the power rear gate auto closer connector.

5.

Check the continuity within the power rear gate CM connector (R422).

Terminals

No. 3 — No. 9 (latch switch):

No. 4 — No. 9 (courtesy switch):

No. 5 — No. 9 (sector switch):

No. 11 — No. 9 (ratchet switch):

Is the continuity condition as follows?

Latch switch: Continuity present

Courtesy switch: Continuity present

Sector switch: No continuity

Ratchet switch: Continuity present

4

Replace the power rear gate auto closer. POWER REAR GATE SYSTEM>Power Rear Gate Auto Closer

4. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 3 — Chassis ground:

(R422) No. 4 — Chassis ground:

(R422) No. 5 — Chassis ground:

(R422) No. 11 — Chassis ground:

Is the resistance 1 MΩ or more?

5

Repair or replace the short circuit of the harness.

5. CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between power rear gate CM connector and power rear gate auto closer connector.

Connector & terminal

(R422) No. 3 — (D153) No. 3:

(R422) No. 4 — (D153) No. 8:

(R422) No. 5 — (D153) No. 6:

(R422) No. 11 — (D153) No. 2:

Is the resistance less than 10 Ω?

Replace the power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the open circuit of harness.

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2514 IGNITION

DTC detecting condition:

When the LIN communication signal and direct line signal do not match.

Trouble symptom:

The power rear gate does not operate.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK DTC.
1.

Fully open the rear gate.

2.

Turn the ignition switch to OFF.

3.

Wait for five seconds or more.

4.

Turn the ignition switch to ON.

5.

Wait for five seconds or more.

6.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2514 displayed? (Current malfunction)

2

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- Ignition Signal

- IGN SW

When confirming the data monitor, display only two items to be checked at a time.

When the ignition switch is turned to ON/OFF, are these two data synchronized?

3

When [Ignition Signal] is not synchronized: 4

When [IGN SW] is not synchronized: 8

3. CHECK CONNECTOR.
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

Is there poor contact of connector?

Repair or replace the poor contact of connector.

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

4. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Body Control]. BODY CONTROL(DIAGNOSTICS)>Data Monitor

- IGN voltage

When the ignition switch is turned to ON/OFF, does the value change? (10 — 15 V when ON)

5

Check the body control. BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure

5. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

2.

Disconnect the body integrated unit connector.

3.

Measure the resistance between Power rear gate CM connector and body integrated unit.

Connector & terminal

(i81) No. 18 — (R422) No. 14:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 14 — Chassis ground:

Is the resistance 1 MΩ or more?

7

Repair or replace the short circuit of the harness.

7. CHECK HARNESS (SHORT CIRCUIT IN LIN COMMUNICATION LINE).
1.

Turn the ignition switch to ON.

2.

Measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 14 (+) — Chassis ground (−):

Is the voltage less than 1 V?

8

Repair or replace the short circuit of the harness.

8. CHECK HARNESS.
1.

Turn the ignition switch to ON.

2.

Measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 16 (+) — Chassis ground (−):

Is the voltage 9 V or more?

9

Repair or replace the open circuit of harness.

9. CHECK CONNECTOR.
1.

Turn the ignition switch to OFF.

2.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2515 LATCH SW

For the diagnostic procedure, refer to DTC B2513. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2513 LATCH CONDITION

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2516 SECTOR SW

DTC detecting condition:

Change of sector SW cannot be detected.

Trouble symptom:

Auto-operation does not function.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK DATA MONITOR.
1.

Using the operation switch, fully open the power rear gate.

2.

Turn the ignition switch to ON.

3.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- SECTOR SW

Is [SECTOR SW] ON?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK SECTOR SW.
1.

Turn the ignition switch to OFF.

2.

Disconnect the power rear gate CM connectors in the order of (R423) → (R422).

3.

Disconnect the power rear gate auto closer connector.

4.

Check the sector SW. POWER REAR GATE SYSTEM>Power Rear Gate Auto Closer>INSPECTION

Is the check result OK?

3

Replace the power rear gate auto closer. POWER REAR GATE SYSTEM>Power Rear Gate Auto Closer

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 5 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK POWER REAR GATE CM (OPEN).

Measure the resistance between power rear gate CM connector and power rear gate auto closer connector.

Connector & terminal

(R422) No. 5 — (D153) No. 6:

Is the resistance less than 10 Ω?

Replace the power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the open circuit of harness.

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2519 POWER +B OPEN

DTC detecting condition:

When power supply malfunction is detected in power system.

Trouble symptom:

When SW is operated, buzzer sounds and power rear gate auto-operation does not function.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

Using operation switch, perform power rear gate auto open/close operation from full close position or full open position.

Is auto operation activated?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2519 displayed? (Current malfunction)

3

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

3. CHECK FUSE.
1.

Turn the ignition switch to OFF.

2.

Check the fuse. POWER REAR GATE SYSTEM>Relay and Fuse

Is the check result OK?

4

Replace the defective fuse. When the fuse is blown immediately, repair the short circuit.

4. CHECK HARNESS.
1.

Disconnect the Power rear gate CM connector (R423).

2.

Using a tester, measure the voltage between Power rear gate CM connector and chassis ground.

Connector & terminal

(R423) No. 1 (+) — Chassis ground (−):

Is the voltage 9 V or more?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R423) No. 4 — Chassis ground:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK CONNECTOR.

Check the Power rear gate CM connector (R423).

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B251A LIN CONNECTION NO-RECEIVE DATA

DTC detecting condition:

When LIN communication failure is detected for two seconds or more.

Trouble symptom:

The power rear gate does not operate.

For diagnostic procedures, refer to DTC U0230 in BODY CONTROL SYSTEM (DIAGNOSTICS). BODY CONTROL(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0230 LOST COMMUNICATION WITH POWER REAR GATE CONTROL MODULE

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2522 EEPROM

DTC detecting condition:

When failure in Power rear gate CM is detected.

Trouble symptom:

The memorized half-stop position is reset, and returned to the default setting.

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

1. CHECK DTC.
1.

Close all doors of the vehicle.

2.

Turn the ignition switch to OFF.

3.

Wait for one minute or more.

4.

Turn the ignition switch to ON.

5.

Repeat procedures from 1) to 4) at least three times.

6.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2522 displayed? (Current malfunction)

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2524 TOUCH SENSOR CIRCUIT/OPEN

DTC detecting condition:

When malfunction in the touch sensor is detected.

Trouble symptom:

The power rear gate does not operate.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK TOUCH SENSOR.
1.

Turn the ignition switch to OFF.

2.

Disconnect the touch sensor RH/LH connectors.

3.

Measure the internal resistance of touch sensor RH/LH.

Connector & terminal

Touch sensor RH: No. 1 — No. 2:

Touch sensor LH: No. 1 — No. 2:

Is the resistance 2 kΩ or less while the sensor is touched, and approx. 10 kΩ when not touched?

3

2

2. CHECK CONNECTOR.

Check the connector of each sensor.

Is there poor contact of connector?

Replace the defective sensor. POWER REAR GATE SYSTEM>Power Rear Gate Touch Sensor

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

2.

Measure the resistance between Power rear gate CM connector and touch sensor connector.

Connector & terminal

(D422) No. 1 — (D150) No. 1:

(D422) No. 9 — (D151) No. 2:

(D150) No. 2 — (D151) No. 1:

Is the resistance less than 10 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (SHORT).

Measure the resistance between Power rear gate CM connector and touch sensor connector or chassis ground.

Connector & terminal

(D422) No. 1 — (D150) No. 2:

(D422) No. 9 — (D150) No. 2:

(D422) No. 1 — (D422) No. 9:

(D422) No. 1 — Chassis ground:

(D151) No. 1 — Chassis ground:

Is the resistance 1 MΩ or more?

5

Repair or replace the open circuit of harness.

5. CHECK CONNECTOR.

Check each connector.

Is there poor contact of connector?

Replace the defective sensor or module.

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2525 ROTATION SENSOR POWER SUPPLY

For the diagnostic procedure, refer to DTC B250B. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250B ROTATION SENSOR A STUCK

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2526 AUTO CLOSER MOTOR CIRCUIT OPEN

DTC detecting condition:

When malfunction in the power rear gate auto closer is detected.

Trouble symptom:

The pull-in/release operation of closer is not possible.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

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

1. CHECK CLOSER UNIT.
1.

Turn the ignition switch to OFF.

2.

Disconnect the power rear gate CM connectors in the order of (R423) → (R422).

3.

Disconnect the power rear gate auto closer connector.

4.

Perform the operation check for the power rear gate auto closer motor. POWER REAR GATE SYSTEM>Power Rear Gate Auto Closer>INSPECTION

Is the check result OK?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between power rear gate CM connector and power rear gate auto closer connector.

Connector & terminal

(R423) No. 2 — (D153) No. 4:

(R423) No. 3 — (D153) No. 1:

Is the resistance less than 10 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the power rear gate CM connector and chassis ground.

Connector & terminal

(R423) No. 2 — Chassis ground:

(R423) No. 3 — Chassis ground:

Is the resistance 1 MΩ or more?

Replace the power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the open circuit of harness.

POWER REAR GATE(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2527 AUTO CLOSER MOTOR CIRCUIT LOW

DTC detecting condition:

When malfunction in the power rear gate auto closer is detected.

Trouble symptom:

The pull-in/release operation of closer is not possible.

For the diagnostic procedure, refer to DTC B2526. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2526 AUTO CLOSER MOTOR CIRCUIT OPEN

POWER REAR GATE(DIAGNOSTICS) > Diagnostics with Phenomenon
LIST

Symptoms | Note
Turn hazard lights do not illuminate | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > TURN HAZARD LIGHTS DO NOT ILLUMINATE
The buzzer does not sound | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > THE BUZZER DOES NOT SOUND
Operation by the power rear gate driver’s SW is not possible | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > OPERATION BY THE POWER REAR GATE DRIVER’S SW IS NOT POSSIBLE
Memory height SW does not function | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CHECK MEMORY HEIGHT SWITCH INPUT CIRCUIT
Power rear gate inner SW does not work | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER REAR GATE INNER SW DOES NOT WORK
Power rear gate position cannot be memorized. Does not stop at a height registered in memory | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER REAR GATE POSITION CANNOT BE MEMORIZED
Rear gate opener button does not function | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > REAR GATE OPENER BUTTON DOES NOT FUNCTION
Operation from keyless/keyless access mobile key is not possible | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > OPERATION FROM KEYLESS/KEYLESS ACCESS MOBILE KEY IS NOT POSSIBLE
Power rear gate does not operate Either auto-open or auto-close does not operate | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER REAR GATE DOES NOT OPERATE
The rear gate does not hold at the full-open position | POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > THE REAR GATE DOES NOT HOLD AT THE FULL-OPEN POSITION

POWER REAR GATE(DIAGNOSTICS) > Diagnostics with Phenomenon
INSPECTION
1. TURN HAZARD LIGHTS DO NOT ILLUMINATE

Wiring diagram:

Turn signal and hazard light system WIRING SYSTEM>Turn Signal Light and Hazard Light System>WIRING DIAGRAM

1. CHECK BODY INTEGRATED UNIT.

Check the hazard light illumination using the following procedures.

- Turn the hazard switch to ON.

- Perform lock/unlock operation using keyless key / access key.

Does the hazard light illuminate?

2

Perform diagnosis for the body integrated unit. BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure

2. CHECK Power rear gate CM.
1.

Unlock the vehicle.

2.

Turn the ignition switch to ON.

3.

Press and hold the power rear gate driver’s switch to activate the power rear gate auto operation.

Does the hazard light illuminate during the power rear gate operation?

- The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

  In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

3

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the body integrated unit connector.

3.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

4.

Measure the resistance between the body integrated unit connector and Power rear gate CM connector.

Connector & terminal

(R422) No. 15 — (i171) No. 37:

Is the resistance less than 10 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 15 — Chassis ground:

Is the resistance 1 MΩ or more?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the short circuit of the harness.

2. THE BUZZER DOES NOT SOUND

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

1. CHECK BODY INTEGRATED UNIT SETTING.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Body Control]. BODY CONTROL(DIAGNOSTICS)>Data Monitor

- Answer-back buzzer setup

Is it ON?

2 (Buzzer sounds)

3 (Buzzer stops)

2. CHECK AUTO OPERATION.
1.

Turn the ignition switch to OFF.

2.

From full close position or full open position, press and hold the power rear gate driver’s switch to open/close the power rear gate.

Does the buzzer sound during the auto operation?

System is normal.

3

3. CHECK FUNCTION.
1.

From the full open position, push the rear gate inner switch to perform the power rear gate auto close operation.

2.

During the power rear gate auto close operation, press the sensor unit of the touch sensor to perform the reverse operation.

During the power rear gate reverse operation, beeping sound (warning sound) is made.

Does the buzzer sound?

System is normal.

4

4. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- BUZZER

2.

From the full open position, push the rear gate inner switch to perform the power rear gate auto close operation.

3.

During the power rear gate auto close operation, press the sensor unit of the touch sensor to perform the reverse operation.

Is the change of ON ←→ OFF detected?

5

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

5. CHECK HARNESS.
1.

Disconnect the power rear gate buzzer connector.

2.

Using an oscilloscope, measure the voltage between power rear gate buzzer connector and chassis ground.

3.

From the full open position, push the rear gate inner switch to perform the power rear gate auto close operation.

4.

During the power rear gate auto close operation, press the sensor unit of the touch sensor to perform the reverse operation.

Connector & terminal

(D152) No. 1 (+) — Chassis ground (−):

Does the voltage waveform temporarily change between ON and OFF during the power rear gate reverse operation?

Replace the power rear gate buzzer. POWER REAR GATE SYSTEM>Power Rear Gate Buzzer

6

6. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R424).

2.

Measure the resistance between Power rear gate CM connector and power rear gate buzzer connector.

Connector & terminal

(R424) No. 5 — (D152) No. 2

(R424) No. 6 — (D152) No. 1

Is the resistance less than 10 Ω?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (GROUND SHORT CIRCUIT).
1.

Connect the power rear gate buzzer connector.

2.

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R424) No. 5 — Chassis ground:

(R424) No. 6 — Chassis ground:

Is the resistance 1 MΩ or more?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair or replace the short circuit of the harness.

3. OPERATION BY THE POWER REAR GATE DRIVER’S SW IS NOT POSSIBLE

Before performing diagnosis, initialize the power rear gate system by opening the power rear gate in manual operation, and then operating the power rear gate auto closer in the partially latched state.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

1. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- D SW

Does the display switch between OFF ←→ ON according to power rear gate driver’s SW operation?

Input circuit is normal.

2

2. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

2.

Disconnect the power rear gate driver’s SW connector.

3.

Measure the resistance between Power rear gate CM connector and PRG driver’s SW connector.

Connector & terminal

(R422) No. 13 — (i258) No. 1:

Is the resistance less than 10 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 13 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between power rear gate driver’s SW connector and chassis ground.

Connector & terminal

(i258) No. 4 — Chassis ground:

Is the resistance less than 10 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK POWER REAR GATE DRIVER’S SW.

Measure the resistance between switch terminals.

Terminals

No. 1 — No. 4:

Is the resistance 1 MΩ or more at OFF, and less than 1 Ω at ON?

6

Replace the power rear gate driver’s switch. POWER REAR GATE SYSTEM>Power Rear Gate Driver’s Switch

6. CHECK CONNECTOR.

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

4. CHECK MEMORY HEIGHT SWITCH INPUT CIRCUIT

Before performing diagnosis, initialize the power rear gate system by opening the power rear gate in manual operation, and then operating the power rear gate auto closer in the partially latched state.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

1. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- Memory stop SW

Does the display switch between OFF ←→ ON according to memory height SW operation?

Input circuit is normal.

2

2. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

2.

Disconnect the memory height SW connector.

3.

Measure the resistance between Power rear gate CM connector and memory height SW connector.

Connector & terminal

(R422) No. 8 — (i257) No. 1:

Is the resistance less than 10 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 8 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between memory height SW connector and chassis ground.

Connector & terminal

(i257) No. 4 — Chassis ground:

Is the resistance less than 10 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK MEMORY HEIGHT SW.

Measure the resistance between switch terminals.

Terminals

No. 1 — No. 4:

Is the resistance 1 MΩ or more at OFF, and less than 1 Ω at ON?

6

Replace the memory height SW. POWER REAR GATE SYSTEM>Memory Height Switch

6. CHECK CONNECTOR.

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

5. POWER REAR GATE INNER SW DOES NOT WORK

Before performing diagnosis, initialize the power rear gate system by opening the power rear gate in manual operation, and then operating the power rear gate auto closer in the partially latched state.

Wiring diagram:

Power rear gate system WIRING SYSTEM>Power Rear Gate System>WIRING DIAGRAM

1. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- R/G inner SW

Does the display switch between OFF ←→ ON according to power rear gate inner SW operation?

Input circuit is normal.

2

2. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the Power rear gate CM connector in the order of (R423) → (R422).

2.

Disconnect the power rear gate inner SW connector.

3.

Measure the resistance between Power rear gate CM connector and power rear gate inner SW connector.

Connector & terminal

(R422) No. 6 — (D154) No. 4:

Is the resistance less than 10 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Measure the resistance between Power rear gate CM connector and chassis ground.

Connector & terminal

(R422) No. 6 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between power rear gate inner SW and chassis ground.

Connector & terminal

(R422) No. 9 — (D154) No. 1:

Is the resistance less than 10 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK POWER REAR GATE INNER SW.

Measure the resistance between switch terminals.

Terminals

No. 1 — No. 4:

Is the resistance 1 MΩ or more at OFF, and less than 1 Ω at ON?

6

Replace the power rear gate inner SW. POWER REAR GATE SYSTEM>Memory Height Switch

6. CHECK CONNECTOR.

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

6. POWER REAR GATE POSITION CANNOT BE MEMORIZED

Before performing diagnosis, initialize the power rear gate system by opening the power rear gate in manual operation, and then operating the power rear gate auto closer in the partially latched state.

1. CHECK DTC.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed?

Perform the diagnosis for the displayed DTCs.

2

2. CHECK MEMORY HEIGHT SW.

Is the memory height SW ON?

3

Set the memory height SW to ON.

3. CHECK EACH SW.

Perform inspections described in “POWER REAR GATE INNER SW DOES NOT FUNCTION” and “CHECK MEMORY HEIGHT SW INPUT CIRCUIT”. POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER REAR GATE INNER SW DOES NOT WORK POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CHECK MEMORY HEIGHT SWITCH INPUT CIRCUIT

Is the check result OK?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair it according to each inspection.

7. REAR GATE OPENER BUTTON DOES NOT FUNCTION

Before performing diagnosis, initialize the power rear gate system by opening the power rear gate in manual operation, and then operating the power rear gate auto closer in the partially latched state.

1. CHECK DTC.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed?

Perform the diagnosis for the displayed DTCs.

2

2. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- R/G Open SW

Does the display switch between “OFF”, “tap” and “press and hold” according to rear gate opener button operation?

Switch input signal is normal.

3

3. CHECK BODY INTEGRATED UNIT.

- For models with keyless access

Perform STEP 6 and subsequent procedures in “REAR GATE CANNOT BE UNLOCKED WITH THE REAR GATE OPENER BUTTON” in KPS (DIAGNOSTICS). KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > REAR GATE CANNOT BE UNLOCKED WITH THE REAR GATE OPENER BUTTON

- For models without keyless access

Perform “CHECK REAR GATE OPENER BUTTON CIRCUIT” in Door Lock Control System. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > CHECK DOOR LOCK SWITCH

Is the check result OK?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair it according to each inspection.

8. OPERATION FROM KEYLESS/KEYLESS ACCESS MOBILE KEY IS NOT POSSIBLE

Before performing diagnosis, initialize the power rear gate system by opening the power rear gate in manual operation, and then operating the power rear gate auto closer in the partially latched state.

1. CHECK DTC.

Read the DTC of [Power Rear Gate] using the Subaru Select Monitor. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed?

Perform the diagnosis for the displayed DTCs.

2

2. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- Normal Keyless R/G SW

  or

- Smart Keyless R/G SW

Does the display switch between “OFF”, “tap” and “press and hold” according to mobile key SW operation?

Switch input signal is normal.

3

3. CHECK BODY INTEGRATED UNIT.

- For models with keyless access

Perform “KEYLESS ACCESS LOCK/UNLOCK CANNOT BE PERFORMED FROM ANY OF THE DOORS” in KPS (DIAGNOSTICS). KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > KEYLESS ACCESS LOCK/UNLOCK CANNOT BE PERFORMED FROM ANY OF THE DOORS

- For models without keyless access

Perform “NONE OF THE FUNCTIONS OF THE KEYLESS ENTRY SYSTEM OPERATE” in Door Lock Control System. SECURITY AND LOCKS>Keyless Entry System>INSPECTION

Is the check result OK?

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

Repair it according to each inspection.

9. POWER REAR GATE DOES NOT OPERATE

When confirming the data monitor, display only the affected items to be checked. When the display items are too many, changes in the signals will not be reflected.

1. CHECK VEHICLE SPEED.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- Front Wheel Speed

Is the reading 0 km/h?

2

Check VDC BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure and the body integrated unit BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure, and if no fault is found, replace the Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

2. CHECK PARKING CONDITION.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- P range SW

Does [P range SW] indicate [ON] when the shift lever is in P position?

3

Check VDC BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure and the body integrated unit BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure, and if no fault is found, replace the Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

3. CHECK R/G OPEN PERMISSION CONDITIONS.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- R/G Open Authorized State

Does the display show as described below at vehicle locked/unlocked state?

- When the vehicle is in locked state: No permission

- When the vehicle is in unlocked state: Permission

4

Check the body integrated unit BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure, and if no fault is found, replace the Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

4. CHECK Auto Start Stop STATUS.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- Idle Stop Control

Is [Idle Stop Uncontrol] displayed while not controlling the Auto Start Stop?

5

Replace Power rear gate CM. POWER REAR GATE SYSTEM>Power Rear Gate Control Module

5. CHECK TOUCH SENSOR CONDITIONS.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- TOUCH SENSOR

Does the display change as ON ←→ OFF along with the ON/OFF operation of the touch sensor?

6

Check the touch sensor with reference to DTC B2524. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2524 TOUCH SENSOR CIRCUIT/OPEN

6. CHECK LATCH CONDITIONS.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- COURTESY SW

- LATCH SW

- SECTOR SW

In a rear gate open/closed state, does the display indicate each combination of values described below?

- Rear gate open state

  - COURTESY SW: ON

  - LATCH SW: ON

  - SECTOR SW: ON

- Rear gate closed state

  - COURTESY SW: OFF

  - LATCH SW: OFF

  - SECTOR SW: ON

7

Check the closer with reference to DTC B2513. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2513 LATCH CONDITION

7. CHECK POWER SUPPLY FOR Power rear gate CM.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Power Rear Gate]. POWER REAR GATE(DIAGNOSTICS)>Data Monitor

- + B

Is the voltage 9 — 16 V?

8

Check the power supply with reference to DTC B2500. POWER REAR GATE(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2500 BATTERY POWER SUPPLY

8. CHECK SW INPUT.

From a rear gate fully closed or fully open state, perform auto operation using the following operation switches.

- Power rear gate driver’s switch

- Rear gate opener button

- Power rear gate inner switch

- Rear gate / trunk SW (keyless transmitter or access key)

Is the check result OK?

Currently, system is normal. Operation conditions are not met temporarily.

Perform inspection with reference to “OPERATION BY THE POWER REAR GATE DRIVER’S SW IS NOT POSSIBLE”, “POWER REAR GATE INNER SW DOES NOT FUNCTION”, “REAR GATE OPENER BUTTON DOES NOT FUNCTION”, “OPERATION FROM KEYLESS/KEYLESS ACCESS MOBILE KEY IS NOT POSSIBLE”. POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > OPERATION BY THE POWER REAR GATE DRIVER’S SW IS NOT POSSIBLE POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER REAR GATE INNER SW DOES NOT WORK POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > REAR GATE OPENER BUTTON DOES NOT FUNCTION POWER REAR GATE(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > OPERATION FROM KEYLESS/KEYLESS ACCESS MOBILE KEY IS NOT POSSIBLE

10. THE REAR GATE DOES NOT HOLD AT THE FULL-OPEN POSITION
1. CHECK REAR GATE CONDITION.

Check the rear gate.

Is there any non genuine parts equipped to the rear gate? Or does it have foreign objects such as snow?

Remove non genuine parts or foreign objects. 2

2

2. CHECK REAR GATE.

Hold the rear gate at the fully open position.

The rear gate may drop suddenly. Be careful not to injure operators or damage the vehicle.

Does it hold at the fully open position?

- The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

  In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Replace Power rear gate drive unit and power rear gate stay. POWER REAR GATE SYSTEM>Power Rear Gate Drive Unit