KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)
KPS(diag)

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Basic Diagnostic Procedure
PROCEDURE

- Subaru Select Monitor is required for reading DTC, performing diagnosis and reading data monitor.

- Before removal or installation, be sure to remove any foreign matter (dust, moisture, oil, etc.).

- Registration of immobilizer may be needed after the replacement of control modules, etc. For detailed procedure, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Using the Function Setting (Customize), check that the keyless access system is not in a canceled state. SECURITY AND LOCKS>Function Setting (Customize)>OPERATION

1. PERFORM CUSTOMER INTERVIEW.

Ask the customer when and how the trouble occurred using the interview check list. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Check List for Interview

Did you interview the customer?

2

Perform the interview, and 2

2. BASIC INSPECTION.

Perform basic inspection. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>INSPECTION

Is the check result OK?

3

Repair the faulty part found in basic inspection, and 3

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 [Keyless Access with Push Button Start].

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

Is communication possible?

4

Check the communication circuit. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure for Subaru Select Monitor Communication

4. CHECK DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

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

6

5. PERFORM DIAGNOSIS.
1.

Perform the diagnosis according to the DTC. KEYLESS ACCESS WITH PUSH BUTTON START(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 [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

4.

Execute the inspection mode. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Inspection Mode

5.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Repeat 5 until DTC is not shown.

Finish the diagnosis.

6. CHECK LIST OF DIAGNOSTICS WITH PHENOMENON.

Check “Diagnostics with Phenomenon”. KEYLESS ACCESS WITH PUSH BUTTON START(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. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon

Keyless access with push button start system is normal.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Check List for Interview
CHECK

Inspect the following items regarding the vehicle’s state.

Keyless Access with Push Button Start System Trouble Check List for Interview   Received   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 |
Condition of trouble occurrence |  | Weather |
Road conditions |  | Occurrence location |
Accessory installation condition |
Trouble condition
DTC | (     )
Immobilizer system | Engine does not start | The starter does not turn Starter operates but engine does not start Engine starts but stops immediately
Does not start with remote engine starter
Steering lock system | The steering lock is not released
The steering lock does not lock
Keyless access system | Cannot lock/unlock using the touch sensor (lock), touch sensor (unlock), rear gate opener button and rear lock button (lock) Cannot lock/unlock using the touch sensor (lock), touch sensor (unlock), rear gate opener button, rear lock button (lock) and power rear gate lock switch (vehicles with power rear gate).
Cannot lock with the touch sensor (lock) Cannot unlock with the touch sensor (unlock) Cannot lock nor unlock with the touch sensor (lock), touch sensor (unlock) Rear gate can not be locked with the rear lock button | Driver’s side door Passenger’s side door Rear gate
Cannot unlock with the rear gate opener button
The access key lockout prevention feature does not function | Indoor Luggage room
The LED does not illuminate when the access key button is pressed
The external buzzer does not beep
The passenger room buzzer does not sound
Other | The room light or map light does not illuminate (     )

- Perform the diagnosis according to the basic diagnostic procedure. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Basic Diagnostic Procedure

- If the room light or map light does not illuminate and the keyless access does not function at the same time, the back-up fuse may be loose or blown.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > General Description
CAUTION
1. AIRBAG

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

2. KEYLESS ACCESS WITH PUSH BUTTON START

When removing keyless access with push button start related parts, refer to Cautions in SECURITY AND LOCKS. SECURITY AND LOCKS>General Description>CAUTION

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > General Description
INSPECTION
1. BASIC INSPECTION

Before performing diagnosis, check the following items which might affect keyless access with push button start system problems.

1.

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

2.

Check the fuse condition. SECURITY AND LOCKS>Relay and Fuse

Make sure that ampere of the fuse is setting value, and it is not blown out.

3.

Check the connecting condition of harness and harness connector.

2. CHECK OPERATION

- Using the function setting (customizing), check that the keyless access system is not OFF. SECURITY AND LOCKS>Function Setting (Customize)>OPERATION

- The dark current is approx. 400 mA if there is communication between the vehicle and access key.

- The dark current is approx. 40 mA if there is no communication between the vehicle and access key.∗

∗ No communication with the vehicle means that the keyless access function has been canceled or that the access key has not been near the vehicle for 15 minutes or more after door locking.

1.

Keyless access door unlock function check

(1) | Touch sensor (unlock) (back side of the handle) | (2) | 40 — 80 cm |  |

(1)

When carrying the access key with all doors and the rear gate locked by keyless lock operation, check that when the touch sensor (unlock) built in to the back side surface of door outer handle of front door is touched, the driver’s door will unlock (when touched on the driver’s side) or all doors and the rear gate will unlock (when touched on the passenger’s side) and the answer-back function operates (hazard light blinks twice, access buzzer sounds twice).

(2)

In the keyless access door unlock detection area, hold the access key at the same height as the outer handle (approx. 80 cm from the ground) and in the direction shown in the figure, and check that the vehicle becomes unlock mode [access key LED (red) blinks] at 40 to 80 cm from the vehicle.

Check the access key battery if the LED (red) does not illuminates when the access key button is pressed. SECURITY AND LOCKS>Access Key>INSPECTION

2.

Keyless access door lock function check

(1) | Touch sensor (lock) | (2) | Approx. 30 cm |  |

(1)

When carrying the access key outside of the vehicle with all doors and the rear gate closed and unlocked, check that when the touch sensor (lock) on the surface of door outer handle of front door is touched, all doors and the rear gate will lock and the answer-back function operates (hazard light blinks once, access buzzer sounds once).

If the access key is within the vehicle but not within the detection area (in the instrument panel, on the rear tray, in the glove box, on the floor, or in the door trim pocket), then lockout protection will not function when the doors are locked and the access key will be locked into the vehicle.

(2)

To check the operating range of keyless access door lock, hold the access key at a height of 10 cm below the bottom edge of the door glass (approx. 80 cm above the ground), point it in the direction shown in the figure at a distance of approx. 30 cm from the vehicle, and check that all doors and rear gate lock and the answer-back function operates (hazard light blinks once) when you touch the touch sensor (lock).

(3)

Check the passenger’s side door in the same manner.

- When the door cannot lock if the touch sensor (lock) is touched, touch the touch sensor (lock) with palm.

- Since communication is not possible within close range (20 cm or less) of the door outer handle, the access key may not operate if you touch the touch sensor (lock) with the same hand you are holding the access key.

- If the lockout prevention buzzer sounds, it is possible that the interior transmitter has radio wave leakage.

3.

Check of the keyless access rear gate function

(1) | Rear gate opener button | (2) | Rear lock button | (3) | 40 — 80 cm

(1)

With the rear gate locked, check that all doors and the rear gate unlock and the rear gate opens simultaneously and the answer-back function operates (hazard light blinks twice, external buzzer sounds twice) when you press the rear gate opener button while carrying the access key.

(2)

To check the range for keyless access rear gate open operation, hold the access key behind and in the center of the vehicle at the same height as the rear gate opener button (90 cm from the ground), point it in the direction shown in the figure at a distance of 40 to 80 cm from the vehicle, and check that all doors and the rear gate unlock and the rear gate opens simultaneously and the answer-back function operates (hazard light blinks twice, external buzzer sounds twice) when the rear gate opener button is pressed.

(3)

With the rear gate unlock, check that the all doors and the rear gate lock and the answer-back function operates (hazard light blinks once, external buzzer sounds once) when you press the rear lock button while carrying the access key.

4.

Keyless access ignition switching function check

(1)

With the ignition OFF, enter the vehicle while carrying the access key. With the shift lever in the P range, check that the push button ignition switch indicator illuminates in green when you depress the brake pedal, then check that the engine starts when you press the push button ignition switch while the indicator green light is on.

(2)

While carrying the access key, check that the status changes as follows each time you press the push button ignition switch without depressing the brake pedal: ‘Ignition OFF’→‘ACC ON’→‘Ignition ON’→‘Ignition OFF’. However, if the shift lever is a range other than the P range and the push button ignition switch is pressed from ignition ON, then the status does not change to ignition OFF and instead will change to ACC ON.

(3)

After the vehicle has stopped, press the push button ignition switch and ignition is turned OFF (engine stopped • all power supplies OFF). However, if the shift lever is in any range except for the P range and the push button ignition switch is pressed with the vehicle stopped, then the ignition is not turned OFF and instead the power supplies changes to ACC ON. Check that the steering lock operates if you open the door in the ignition OFF state (the shift lever must be in P range).

(4)

To check the range of the keyless access ignition operation, check that the engine can start when you set the access key at the check position on the seat in the direction indicated in the figure.

The access key may not be correctly detected even though it is within the detection area within the passenger room, if it is on the instrument panel, on the rear tray, in the glove box, on the floor, or in the door trim pocket.

Perform the check multiple times, once each with the access key positioned on the driver’s seat, on the passenger’s seat, and on the rear seat in 2 locations.

5.

Lockout protection function check (in the passenger room)

Open one of the windows before performing this check in order to prevent the key from being locked inside the vehicle.

(1)

Position the access key on the driver’s or passenger’s seat.

(2)

Close all the doors and rear gate. (With all doors unlocked)

(3)

Check that the doors do not lock and the lockout protection buzzer (exterior) sounds for 2 seconds when you touch the touch sensor (lock) of either the driver’s or passenger’s door.

6.

Keyless access cancel function check

(1)

After setting the keyless access cancel function, check that all keyless access and start system (keyless access) functions are inoperable. (For cancel setting, refer to SECURITY AND LOCKS>Function Setting (Customize)>OPERATION.)

When keyless access is canceled, door lock and unlock can be operated by access key button operation and the starter system can be operated by passing the access key over the push button ignition switch with the access key button toward you.

7.

Access key diagnostic mode

(1)

Connect the Subaru Select Monitor and select Diagnosis on [Start] display.

(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 Keyless Access with Push Button Start, and then select [Enter].

(5)

On Select Function screen, select Work Support.

(6)

On Work Support screen, select [Keyless access system check].

(7)

Select the transmitter to check from the items.

(8)

Check that the door lock buzzer sounds (short blips, a continuous beeping sound for the center room antenna) when the access key is near the selected transmitter or antenna.

KEYLESS ACCESS WITH PUSH BUTTON START(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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > General Description
SYSTEM BLOCK DIAGRAM
KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Electrical Component Location
LOCATION

(1) | Keyless access CM | (9) | Rear interior antenna | (17) | Combination meter
(2) | Mechanical key | (10) | Center interior antenna | (18) | Body integrated unit
(3) | Access key | (11) | Front outer handle RH Touch sensor (lock), touch sensor (unlock), front exterior antenna | (19) | Data link connector
(4) | ID code box (For C5 model only) | (12) | VDC CM | (20) | ECM
(5) | Rear exterior antenna | (13) | Front interior antenna | (21) | TCM
(6) | Rear lock button | (14) | Push button ignition switch | (22) | Access buzzer
(7) | Power rear gate lock switch (model with power rear gate only) | (15) | Steering lock CM |  |
(8) | Rear gate opener button | (16) | Front outer handle LH Touch sensor (lock), touch sensor (unlock), front exterior antenna |  |

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Control Module I/O Signal
ELECTRICAL SPECIFICATION
1. KEYLESS ACCESS CM

Terminal No. | Contents | Measuring condition | Standard
(i75) No. 1 (+B2) ←→ Chassis ground | +B power supply (SUB) | Always ∗1 | 9.5 V — 16 V
(i75) No. 2 | — | — | —
(i75) No. 3 | — | — | —
(i75) No. 4 (+B1) ←→ (i75) No. 20 (GND1) | +B power supply (MAIN) | Always ∗1 | 9.5 V — 16 V
(i75) No. 5 | — | — | —
(i75) No. 6 (TACH) ←→ Chassis ground | Engine speed | While engine idling | Waveform 2
(i75) No. 7 (SPD) ←→ Chassis ground | Vehicle speed input | Always | 30 kΩ or more
(i75) No. 8 (SSW1) ←→ (i75) No. 20 (GND1) | Start switch input 1 | Push button ignition switch pressed → released∗1 | Less than 1 Ω → 10 kΩ or more
(i75) No. 9 (SSW2) ←→ (i75) No. 20 (GND1) | Start switch input 2 | Push button ignition switch pressed → released∗1 | Less than 1 Ω → 10 kΩ or more
(i75) No. 10 (SLR+) ←→ Chassis ground | Steering lock motor power supply signal output | Always ∗1 | 10 kΩ or more
(i75) No. 11 (SLP) ←→ (i75) No. 20 (GND1) | Steering lock position input | With ignition switch OFF and shift position P, and with push button ignition switch pressed, Steering lock → Steering unlock | 9.5 V or more → 1.2 V or less
(i75) No. 12 (INDW) ←→ (i75) No. 20 (GND1) | Indicator output (orange) | With ACC ON or IG ON, brake pedal not depressed | 9.5 V or more
(i75) No. 13 | — | — | —
(i75) No. 14 | — | — | —
(i75) No. 15 | — | — | —
(i75) No. 16 (ACCD) ←→ Chassis ground | ACC relay drive request | Always ∗1 | Depending on ACC circuit in vehicle
(i75) No. 17 (TSW5) ←→ (i75) No. 20 (GND1) | Request SW input | Power supply OFF, all doors closed, all doors locked, rear gate lock button OFF → ON | 9.5 V or more → Less than 2 V
(i75) No. 18 (IDW) ←→ Chassis ground | ID code box presence judgment | Always ∗1 | With ID code box: Less than 1 Ω Without ID code box: 1 MΩ or more
(i75) No. 19 (ACCR) ←→ (i75) No. 20 (GND1) | ACC cutoff input | Brake pedal depressed, push button ignition switch pressed (while cranking) → Except when cranking | Less than 2 V → 9.5 V or more
(i75) No. 20 (GND1) ←→ Chassis ground | GND | Always ∗1 | Less than 1 Ω
(i75) No. 21 | — | — | —
(i75) No. 22 | — | — | —
(i75) No. 23 (STSW) ←→ (i75) No. 20 (GND1) | Starter drive request output | Shift lever is in position P or position N and access key is in passenger room. While depressing the brake pedal, press the push button ignition switch (engine start). | Less than 2 V → 9.5 V or more
(i75) No. 24 | — | — | —
(i75) No. 25 (INDS) ←→ Chassis ground | Indicator output (green) | Depress the brake pedal. | 9.5 V or more
(i75) No. 26 (SWIL) ←→ Chassis ground | Start switch character illumination | When illumination of start switch goes off, the headlight is OFF → ON, after setting the illumination control to MAX | Less than 2 V → 9.5 V or more
(i75) No. 27 (IG2D) ←→ Chassis ground | IG2 relay drive output | Always ∗1 | Depending on relay circuit in vehicle
(i75) No. 28 (IG1D) ←→ Chassis ground | IG1 relay drive output | Always ∗1 | Depending on relay circuit in vehicle
(i241) No. 1 (CG7B) ←→ (i241) No. 17 (GND2) | Luggage room antenna − | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected
(i241) No. 2 (CLG7) ←→ (i241) No. 17 (GND2) | Luggage room antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected
(i241) No. 3 (CG6B) ←→ (i241) No. 17 (GND2) | Rear interior antenna − | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected
(i241) No. 4 (CLG2) ←→ (i241) No. 17 (GND2) | Passenger side external antenna + | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected
(i241) No. 5 (CG1B) ←→ (i241) No. 17 (GND2) | Driver side external antenna − | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected
(i241) No. 6 (CLG1) ←→ (i241) No. 17 (GND2) | Driver side external antenna + | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected
(i241) No. 7 (CG8B) ←→ (i241) No. 17 (GND2) | Rear exterior antenna − | Power OFF, all doors closed, all doors locked, rear gate opener button OFF → ON | No pulse output → Pulse output detected
(i241) No. 8 (CLG8) ←→ (i241) No. 17 (GND2) | Rear exterior antenna + | Power OFF, all doors closed, all doors locked, rear gate opener button OFF → ON | No pulse output → Pulse output detected
(i241) No. 9 (CLG6) ←→ (i241) No. 17 (GND2) | Rear interior antenna + | Power OFF, all doors closed, all doors locked, rear gate opener button OFF → ON | No pulse output → Pulse output detected
(i241) No. 10 | — | — | —
(i241) No. 11 | — | — | —
(i241) No. 12 (CG5B) ←→ (i241) No. 17 (GND2) | Front interior antenna − | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected
(i241) No. 13 | — | — | —
(i241) No. 14 | — | — | —
(i241) No. 15 (EGIO) ←→ (i241) No. 17 (GND2) | Immobilizer collation communication line | Ignition switch ON | 7 V or more → pulse generates temporarily
(i241) No. 16 (CG2B) ←→ (i241) No. 17 (GND2) | Passenger side external antenna − | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected
(i241) No. 17 (GND2) ←→ Chassis ground | GND | Always | Less than 1 Ω
(i241) No. 18 (P) ←→ Chassis ground | Shift P position input | Except for shift positions P → Shift position P | Depending on shift position internal resistance
(i241) No. 19 (TXCT) ←→ (i241) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less
Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch. (With the access key battery removed) | Waveform 3
(i241) No. 20 (LIN) ←→ (i241) No. 17 (GND2) | LIN communication | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation
(i241) No. 21 (VC5) ←→ (i241) No. 17 (GND2) | Immobilizer amplifier power supply | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less
Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 4
(i241) No. 22 (CODE) ←→ (i241) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less
Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 1
(i241) No. 23 | — | — | —
(i241) No. 24 (AGND) ←→ Chassis ground | Immobilizer amplifier GND | Always ∗1 | Less than 1 Ω
(i241) No. 25 (CLG5) ←→ (i241) No. 17 (GND2) | Front interior antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected
(i241) No. 26 | — | — | —
(i241) No. 27 (STP1) ←→ Chassis ground | Stop light switch input | Brake pedal depressed → released | 9.5 V or more → 1 V or less
(i241) No. 28 | — | — | —
(i241) No. 29 (CANL) ←→ Chassis ground | CAN communication (L) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation
(i241) No. 30 (CANH) ←→ Chassis ground | CAN communication (H) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation

∗1: Executed with the keyless access CM connector disconnected.

1. Waveform 1

   Item | Contents
   Measured terminal | (i241) No. 22 (CODE) ←→ (i241) No. 17 (GND2)
   Equipment setting | 2 V/DIV, 20 ms/DIV
   Measuring condition | Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch (with the access key battery removed).

2. Waveform 2

   Item | Contents
   Measured terminal | (i75) No. 6 (TACH) ←→ Chassis ground
   Equipment setting | 5 V/DIV, 100 ms/DIV
   Measuring condition | While engine idling

3. Waveform 3

   Item | Contents
   Measured terminal | (i241) No. 19 (TXCT) ←→ (i241) No. 17 (GND2)
   Equipment setting | 2 V/DIV, 20 ms/DIV
   Measuring condition | Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch (with the access key battery removed).

4. Waveform 4

   Item | Contents
   Measured terminal | (i241) No. 21 (8VC5) ←→ (i241) No. 17 (GND2)
   Equipment setting | 2 V/DIV, 200 ms/DIV
   Measuring condition | Within 30 seconds after the push button ignition switch is pressed with IG OFF and access key not in the passenger room

2. ID CODE BOX

Terminal No. | Contents | Measuring condition | Standard
(i33) No. 1 ←→ 5 | Battery power supply | Always ∗1 | 9.5 V or more
(i33) No. 2 | LIN communication | ACC ON, IGN ON or power OFF, and open/close the door | Pulse generation
(i33) No. 3 | — | — | —
(i33) No. 4 ←→ 5 | Immobilizer communication 1 | Ignition switch OFF | 0 V
Ignition switch ON | 7 V or more → pulse generates temporarily
(i33) No. 5 ←→ Chassis ground | Ground | Always ∗1 | Less than 1 Ω

∗1: Executed with the ID code box connector disconnected.

3. BODY INTEGRATED UNIT

For I/O signals of the body integrated unit, refer to Body Control (Diagnostics). BODY CONTROL(DIAGNOSTICS)>Control Module I/O Signal>ELECTRICAL SPECIFICATION

4. STEERING LOCK CM

Terminal No. | Contents | Measuring condition | Standard
(i47) No. 1 ←→ Chassis ground | Ground | Always ∗1 | Less than 1 Ω
(i47) No. 2 | — | — | —
(i47) No. 3 ←→ Chassis ground | Steering lock motor drive power supply | Motor not operating → Motor operating | 9.5 V or more → 1 V or less
(i47) No. 4 ←→ Chassis ground | Unlock position output | Lock → Unlock | 9.5 V or more → 1 V or less
(i47) No. 5 | LIN communication | ACC ON, IGN ON or power OFF, and open/close the door | Pulse generation
(i47) No. 6 ←→ Chassis ground | Ignition power supply | Ignition switch ON∗1 | 9.5 V or more
(i47) No. 7 ←→ Chassis ground | Battery power supply | Always ∗1 | 9.5 V or more

∗1: Executed with the steering lock CM connector disconnected.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Inspection Mode
PROCEDURE

It is possible to diagnose the DTC by performing the indicated inspection mode. After correcting the DTC, perform a necessary inspection mode and make sure that the function is resumed correctly and the DTC is recorded.

1. INSPECTION MODE 1

DTC | Item | Note
U0074 | CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF | —
U0100 | Lost Communication With ECM/PCM "A" | —
U0101 | Lost Communication With TCM | —
U0122 | Lost Communication With Vehicle Dynamics Control Module | —
U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | —
U0401 | Invalid Data Received From ECM/PCM "A" | —
U0423 | INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE | —
U1120 | LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE | —
U1140 | LOST COMMUNICATION WITH BODY CONTROL MODULE BODY-CAN | —
U1198 | LOST COMMUNICATION WITH TELEMATICS SYSTEM | —
U1422 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE BODY-CAN | —
B2271 | IGN relay control circuit | —
B2274 | ACC relay control circuit | —
B2275 | Engine start request control circuit | —
B2276 | ACC relay off signal | —
B2277 | Keyless access control module (water detection) | —
B227B | PUSH ENGINE START SWITCH INPUT PERFORMANCE | —
B227C | P RANGE SIGNAL PERFORMANCE | —
B2285 | Steering lock position signal correlation | —
B2286 | Engine speed signal(without Auto Start Stop) | —
B228A | ENGINE SPEED SIGNAL(WITH AUTO START STOP) | —
B2781 | Steering Lock CM control circuit | —
B2782 | Steering lock drive request signal correlation | —
B2785 | LIN communication | —
B2786 | Steering Lock CM communication | —
B2788 | IGN signal correlation (Steering Lock CM) | —
B2789 | ID Code Box communication | —
B278B | CAN CONTROL MODULE STUCK | —
B278D | ID Code Box judgment circuit | —
B2793 | BACKUP POWER | —

Diagnostic procedure:

1.

Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

4.

Start the engine, and let it idle for 40 seconds or more.

5.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

2. INSPECTION MODE 2

DTC | Item | Note
B2779 | Remote control engine starter collation | —

Diagnostic procedure:

1.

Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

4.

Register the remote engine starter, and operate it.

5.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

3. INSPECTION MODE 3

DTC | Item | Note
B2784 | Antenna circuit (Push Engine Switch) | —
B2790 | ID Code Box circuit | —
B27A1 | Driver side external antenna open | —
B27A2 | Passenger side external antenna open | —
B27A5 | Front internal antenna open | —
B27A6 | Rear internal antenna open | —
B27A7 | Trunk/rear gate internal antenna open | —
B27A8 | Trunk/rear gate external antenna open | —

Diagnostic procedure:

1.

Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

4. INSPECTION MODE 4

DTC | Item | Note
B2282 | Vehicle speed signal correlation | —
B2283 | Vehicle speed sensor | —

Diagnostic procedure:

1.

Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

4.

Drive for 20 seconds or more at a vehicle speed of 25 km/h (15.5 MPH) or more.

5.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

5. INSPECTION MODE 5

DTC | Item | Note
B2784 | Antenna circuit (Push Engine Switch) | —
B278A | Push Engine Switch power supply circuit | —

Diagnostic procedure:

1.

Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

4.

Hold the access key that doesn’t have a battery over the push button start SW for collation.

5.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

6. INSPECTION MODE 6

DTC | Item | Note
B2284 | Brake signal correlation | —

Diagnostic procedure:

1.

Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

4.

Turn the ignition switch to ON, depress and hold the brake pedal for 20 seconds or more, then release the brake pedal and wait for 20 seconds and more.

5.

Using the Subaru Select Monitor, read the DTC of [Keyless Access with Push Button Start] to check that there is no DTC displayed. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Warning Light Illumination Pattern
INSPECTION

- Security indicator light

  Blinks slowly once with the push button ignition switch not pressed.

  Goes off when the push button ignition switch is pressed while carrying the regular access key.

  The indicator light continues to blink and the engine is not allowed to start when the push button ignition switch is pressed while carrying a key other than the regular access key.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Warning Light Illumination Pattern
WARNING LIGHT DOES NOT ILLUMINATE

Trouble causes:

- Power supply circuit malfunction

- Ground circuit malfunction

- Body integrated unit malfunction

- Combination meter malfunction

- Malfunction of harness between combination meter and body integrated unit

Wiring diagram:

Combination meter system WIRING SYSTEM>Combination Meter System>WIRING DIAGRAM

Clearance light and illumination light system WIRING SYSTEM>Clearance Light and Illumination Light System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK FUSE.
1.

Turn the ignition switch to OFF.

2.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

2

Replace the fuse. If the replaced fuse blows out easily, repair the short circuit in the harness between the fuse and body integrated unit.

2. CHECK SECURITY INDICATOR LIGHT.
1.

Disconnect the connector from body integrated unit.

2.

Connect the resistor (100 Ω) between the body integrated unit connector terminal (i171) No. 20 and chassis ground.

Does the security indicator light illuminate?

3

5

3. CHECK BODY INTEGRATED UNIT GROUND CIRCUIT.

Measure the resistance between the body integrated unit connector terminal and chassis ground.

Connector & terminal

(i84) No. 4 — Chassis ground:

(B287) No. 1 — Chassis ground:

Is the resistance less than 10 Ω?

4

Repair the open circuit of the body integrated unit ground circuit.

4. CHECK BODY INTEGRATED UNIT POWER SUPPLY CIRCUIT.

Measure the voltage between the body integrated unit connector terminal and chassis ground.

Connector & terminal

(B281) No. 7 (+) — Chassis ground (–):

(B280) No. 1 (+) — Chassis ground (–):

Is the voltage 10 V or more?

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

Check the harness for open or short circuit between body integrated unit and fuse.

5. CHECK COMBINATION METER CIRCUIT.
1.

Remove the combination meter. INSTRUMENTATION/DRIVER INFO>Combination Meter

2.

Measure the voltage between combination meter connector terminal and chassis ground.

Connector & terminal

(i10) No. 1 (+) — Chassis ground (–):

Is the voltage 10 V or more?

6

Check for an open or short circuit in the harness between the combination meter and fuse.

6. CHECK COMBINATION METER CIRCUIT.

Measure the resistance between the body integrated unit connector terminal and combination meter connector terminal.

Connector & terminal

(i171) No. 20 — (i10) No. 19:

Is the resistance less than 10 Ω?

LED bulb is defective. Replace the combination meter case assembly. INSTRUMENTATION/DRIVER INFO>Combination Meter

Repair the harness or connector.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Warning Light Illumination Pattern
WARNING LIGHT REMAINS ON

For the diagnostic procedures, refer to “WARNING LIGHT DOES NOT COME ON”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Warning Light Illumination Pattern>WARNING LIGHT DOES NOT ILLUMINATE

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure for Subaru Select Monitor Communication
INSPECTION

Detecting condition:

- Defective harness

- Power supply circuit malfunction

- Defective keyless access CM

- Defective CAN communication circuit

- Defective Subaru Select Monitor

Trouble symptom:

Not communicable with Subaru Select Monitor.

Wiring diagram:

- Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

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

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK POWER SUPPLY CIRCUIT.

Connect DST-i to data link connector.

Does DST-i turn ON?

4

2

2. CHECK POWER SUPPLY CIRCUIT.
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. 8 (+) — Chassis ground (–):

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

Is the voltage 10 V or more?

3

- Repair the power supply circuit.

  - In this case, repair the following item:

    - Open or ground short circuit of harness between battery and data link connector

    - Blown out of fuse

3. CHECK HARNESS BETWEEN DATA LINK CONNECTOR AND CHASSIS GROUND (OPEN).
1.

Turn the ignition switch to OFF.

2.

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

Connector & terminal

(i288) No. 4 — Chassis ground:

(i288) No. 5 — Chassis ground:

Is the resistance less than 5 Ω?

Check for poor contact of the data link connector, and repair a fault, if any. When no fault is found, 4

Repair the harness and connector.

4. CHECK SUBARU SELECT MONITOR.
1.

Connect the Subaru Select Monitor to a normal vehicle.

2.

Start the engine and establish communication between the Subaru Select Monitor and vehicle.

Is communication possible?

5

Use another Subaru Select Monitor because the CAN communication circuit of the Subaru Select Monitor is faulty.

5. CHECK LAN SYSTEM.

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

Is the check result OK?

6

Perform the diagnosis for LAN system.

6. CHECK CONNECTOR.

Check poor contact of keyless access CM connector, data link connector and coupling connector.

Is the check result OK?

7

Repair the connector.

7. CHECK FUSE.
1.

Turn the ignition switch to OFF.

2.

Check the fuse of keyless access CM. SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

8

Replace the fuse. If the replaced fuse has blown out immediately, repair the short circuit to ground in harness between keyless access CM and fuse.

8. CHECK KEYLESS ACCESS CM CONNECTOR POWER SUPPLY CIRCUIT (OPEN).
1.

Disconnect the keyless access CM connector.

2.

Turn the ignition switch to ON.

3.

Measure the voltage between keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (–):

(i75) No. 1 (+) — Chassis ground (–):

Is the voltage 10 V or more?

9

Check for open or short circuit in the harness between keyless access CM and fuse.

9. CHECK GROUND CIRCUIT OF KEYLESS ACCESS CM (OPEN).
1.

Turn the ignition switch to OFF.

2.

Measure the resistance in harness between keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 20 — Chassis ground:

(i241) No. 17 — Chassis ground:

Is the resistance less than 1 Ω?

Check the connection between the data link connector and Subaru Select Monitor.

Repair the harness for ground line.

KEYLESS ACCESS WITH PUSH BUTTON START(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. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor>LIST

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Data Monitor
LIST

Item | Contents | Standard/Unit | Note
Trip Count [count] | Time stamp information COMMON(diag)>Time Stamp | time | —
Count | — | —
Time Count [msec] | ms | —
Driver's unlock touch sensor switch | Status of the touch sensor (unlock) built on the back surface of the driver’s door outer handle | ON: ON when the touch sensor is touched OFF: OFF when the touch sensor is not touched | —
Passenger's unlock touch sensor switch | Status of the touch sensor (unlock) built on the back surface of the passenger’s door outer handle | ON: ON when the touch sensor is touched OFF: OFF when the touch sensor is not touched | —
Driver's lock touch sensor SW | Status of the touch sensor (lock) built on the surface of the driver’s door outer handle | ON: ON when the touch sensor is touched OFF: OFF when the touch sensor is not touched | —
Passenger's lock touch sensor SW | Status of the touch sensor (unlock) built on the back surface of the passenger’s door outer handle | ON: ON when the touch sensor is touched OFF: OFF when the touch sensor is not touched | —
Rear Gate Request SW | Rear gate lock/unlock button status (5 door model only) | ON: When the switch is ON OFF: When the switch is OFF | —
Secret code Keyless registration | Secret code keyless registration status | Unregistered: When not registered Registered: When registered | —
Control Module Voltage | Keyless access CM power supply voltage status | ON: When the voltage is present OFF: When the voltage is not present | —
Control Module Voltage(Backup) | Keyless access CM back-up power supply voltage status | ON: When the voltage is present OFF: When the voltage is not present | —
B/up fuse | Keyless access CM back-up fuse status | Connecting: When the fuse is connected OFF: When the fuse is not connected | —
Incorrect vehicle ID | ID information when performing the keyless access | No: Registered access key Yes: Unregistered access key | —
No response | Access key response status | No: There is a response from the access key when keyless access is performed Yes: There is no response from the access key when keyless access is performed | —
Incorrect response code, format | Response status from the access key | No: Response from the access key is normal when keyless access is performed Yes: Response from the access key differs when keyless access is performed | —
Exhausted battery | Access key battery status | No: When the access key battery is not depleted Yes: When the access key battery is depleted | —
Incorrect response code, ID code | Access key response status when performing the keyless access | No: Response from the access key is normal when keyless access is performed Yes: Response from the access key differs when keyless access is performed | —
Incorrect response code, collation result | Access key response status when performing the keyless access | No: Response from the access key is normal when keyless access is performed Yes: Response from the access key differs when keyless access is performed | —
Incorrect ID code | Access key response status when performing the keyless access | No: Response from the access key is normal when keyless access is performed Yes: Response from the access key differs when keyless access is performed | —
Incorrect rolling code | Access key response status when performing the keyless access | No: Response from the access key is normal when keyless access is performed Yes: Response from the access key differs when keyless access is performed | —
Smart Cancel | Keyless access function status | Normal: Keyless access function is activated Cancel: Keyless access function is deactivated | —
Simple Smart system cancel | Keyless access function status | Normal: Keyless access function is activated Cancel: Keyless access function is deactivated | —
ID Code Box W/H Connection State | Connecting status of the terminal (i75) No. 18 | OFF: ID code box is not connected Connecting: ID code box is connected | —
ID Code Box Existence Judging | ID code box connection setting | — | Normal [Existence Judging]
Immobilizer | Immobilizer set status | Set: When the immobilizer is set Unset: When the immobilizer is not set | —
Telematics Communication | Communication confirmation status of telematics remote engine starter | NG: When using unregistered DCM OK: When using registered DCM | —
Immobilizer Set Memory | Remote immobilizer set status | Set: When the remote immobilizer is set Unset: When the remote immobilizer is unset | —
Telematics Contract State | Subscription information of remote engine starter by telematics | Contract: Telematics function is in subscription status Not contract: Telematics function in no subscription status | —
Remote Engine Starter State | Activated status of remote engine starter | Impossible: When the remote engine starter cannot be used Possible: When the remote engine starter can be used | —
Remote Engine Starter Stop Factor | — | — | —
Remote engine starter communication ID confirmation | Remote control engine starter communication confirmation status | NG: When using an unregistered remote control engine starter OK: When using a registered remote control engine starter | —
Remote engine starter code registration confirmation | Remote control engine starter registration status | unregistered: When the code is not registered Registered: When the code is registered | —
STLC sleep possible status | Steering lock CM sleep possible status | Impossible: Sleep is not possible Possible: Sleep is possible | —
STLC wake-up transmission status | Steering lock CM wake-up transmission status | No transmission: Wake-up signal is not transmitted Transmission: Wake-up signal is transmitted | —
Lock side sensor status | Steering lock CM status | ON: Locked status OFF: Unlocked status | —
Unlock side sensor status | Steering lock CM status | ON: Locked status OFF: Unlocked status | —
Lock confirmation | Steering lock CM status | Unconfirmed: When not locked Confirmed: When locked | —
Unlock confirmation | Steering lock CM status | Unconfirmed: When not unlocked Confirmed: When unlocked | —
Sensor initialization | Steering lock CM status | Incomplete: Sensor initial operation not completed Completed: Sensor initial operation completed | —
Motor protection control status | Steering lock CM status | Permitted range: Motor protection control is activated Rejected range: Motor protection control is not activated | —
Motor operation prohibition voltage evaluation | Steering lock CM status | ON: Motor operation is permitted OFF: Motor operation is prohibited | —
Diagnosis response | Steering lock CM status | Normal: Diagnostic communication is not in progress response: Diagnostic communication is in progress | —
Sensor abnormal | Steering lock CM status | Normal: When the steering lock CM is normal FAIL: When the steering lock CM is not normal | —
Motor power supply short-circuit abnormal | Steering lock CM status | Normal: When the steering lock CM is normal FAIL: When the steering lock CM is not normal | —
Motor driver short-circuit abnormal | Steering lock CM status | Normal: When the steering lock CM is normal FAIL: When the steering lock CM is not normal | —
IGN input open abnormal | IGN input status | Receive: When the IGN input is normal FAIL: When the IGN input is not normal | —
Lock bar engagement abnormal | Steering lock bar status | Normal: Steering lock bar is normal FAIL: Steering lock bar is stuck | —
Lock side relay operation | Steering lock CM status | Yes: When in other than unlocked → locked Operating: When in unlocked → locked | —
Unlock side relay operation | Steering lock CM status | Yes: When in other than unlocked → locked Operating: When in unlocked → locked | —
Motor drive FET drive | Steering lock CM status | Yes: Except when the motor drive FET is operating Operating: When the motor drive FET is operating | —
Motor reversal protection control | Steering lock CM status | Operating: When the motor drive FET is operating Yes: Except when the motor drive FET is operating | —
Engine start | Engine start permission status | E/G Start Permission: When the ignition switch is ON Engine start prohibition: When the ignition switch is OFF | —
Sensor abnormal (past) | Steering lock CM status | FAIL: When the steering lock CM is not normal Normal: When the steering lock CM is normal | —
Motor power supply short-circuit abnormal (past) | Steering lock CM status | FAIL: When the steering lock CM is not normal Normal: When the steering lock CM is normal | —
Motor driver short-circuit abnormal (past) | Normal: When the steering lock CM is normal | FAIL: When the steering lock CM is not normal Normal: When the steering lock CM is normal | —
Steering lock lock/unlock command reception history | Steering lock CM status | No Support: — ON (keep 10 sec): When steering lock changes as locked → unlocked, or unlocked → locked | —
Lock bar engagement abnormal (past) | Steering lock bar status | No: Steering lock bar is normal Yes: Steering lock bar was stuck in the past | —
IGN input open abnormal (past) | IGN input status | Receive: When the IGN input is normal FAIL: When the IGN input is not normal | —
STLC Abnormal EEPROM access | Steering lock CM status | Receive: When the steering lock CM is normal FAIL: When the steering lock CM is not normal | —
ID code BOX sleep possible status | ID code box status | Impossible: Sleep is not possible Possible: Sleep is possible | —
ID code BOX wake-up transmission status | ID code box status | No transmission: Wake-up signal is not transmitted Transmission: Wake-up signal is transmitted | —
ID code BOX Abnormal EEPROM access (now) | ID code box status | Normal: When the ID code box is normal FAIL: When the ID code box is not normal | —
EGI code reception status | Engine start operation status | Receive: When the engine start operation is performed Not yet received: When the engine start operation is not performed | —
Engine start permission request reception status | Engine start permission request reception status | Reception: Ignition ON Not yet received: Ignition OFF | —
Code collation result between smart ECM and ID code box | Check result of collation code between keyless access CM and ID code box | Normal: When the engine start is possible FAIL: When the engine start is not possible | —
Code collation result between steering locked ECM and ID code box | Check result of collation code between steering lock CM and ID code box | FAIL: When the steering lock operation is possible Normal: When the steering lock operation is not possible | —
Steering lock unlock request reception status | Steering lock CM unlock request reception status | Reception (keep 10 sec): When the steering lock is performing unlock operation Not yet received: — | —
Steering lock lock request reception status | Steering lock CM lock request reception status | Reception (keep 10 sec): When the steering lock is performing lock operation Not yet received: — | —
Driver's external transmitter output circuit abnormal | Transmitter output circuit status | Receive: When the transmitter output circuit is normal FAIL: When the transmitter output circuit is not normal | —
Passenger's external transmitter output circuit abnormal | Transmitter output circuit status | Receive: When the transmitter output circuit is normal FAIL: When the transmitter output circuit is not normal | —
Driver's external transmitter output circuit abnormal (past) | Transmitter output circuit status | Receive: When the transmitter output circuit is normal FAIL: There was a transmitter output error in the past | —
Passenger's external transmitter output circuit abnormal (past) | Transmitter output circuit status | Receive: When the transmitter output circuit is normal FAIL: There was a transmitter output error in the past | —
ID code registration mode status | Immobilizer registration status | Normal: Not while registering/deleting Regist.: While registering Deletion: While deleting | —
Smart related ECM code registration mode status | Immobilizer registration status | Normal: When not in the smart related ECM code registration mode On mode: When in the smart related ECM code registration mode | —
ID code collation completion confirmation | Immobilizer registration status | Normal: Except when the ID code collation is complete Started: When the ID code collation is complete | —
ID code registration completion confirmation | Immobilizer registration status | Normal: Except when the ID code registration is complete Started: When the ID code registration is complete | —
Smart related ECM code registration completion confirmation | Immobilizer registration status | Normal: Except when the smart related ECM code registration is complete Started: When the smart related ECM code registration is complete | —
Registered smart key confirmation status | Immobilizer registration status | Normal: Not while confirming the registered access keys Confirming: While confirming the registered access keys | —
Smart related ECM code confirmation status | Immobilizer registration status | Normal: Not while confirming the smart related ECM code Confirming: While confirming the smart related ECM code | —
ID code registration status | Immobilizer registration status | Normal: Not during the ID code registration Confirming: During the ID code registration | —
Registration abnormal confirmation | Registration malfunction status | Normal: At normal condition FAIL: Abnormal | —
ID code collation status | Immobilizer registration status | Normal: Not during the ID code registration Collating the immobilizer: During the ID code collation (immobilizer collation) Collating the smart: During the ID code collation (smart collation) | —
All registered keys confirmation status | Immobilizer registration status | Normal: Not while confirming all registered keys Confirming: While confirming all registered keys | —
Confirmed number of all registered keys | Immobilizer registration status | Display range: 0 — 7 | —
Number of required registrations (smart) | Immobilizer registration status | Display range: 0 — 7 | —
Number of collation completed (smart) | Immobilizer registration status | Display range: 0 — 7 | —
Number of registration completed (smart) | Number of recognized keyless access CM | Display range: 0 — 7 | —
ID Code Box | ID code box connection status | OFF: ID code box is not connected Connecting: ID code box is connected | —
Steer Lock ECM | Steering lock CM connection status | OFF: The steering lock CM is not connected Connecting: The steering lock CM is connected | —
Driver's lock request SW/touch sensor switch ON edge record | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past | When confirming the data on the left, confirm after performing the keyless access with push button start check. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check
Passenger's lock request SW/touch sensor switch ON edge record | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Rear gate lock request SW ON edge history | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Driver's unlock touch sensor switch ON edge record | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Passenger's unlock touch sensor switch ON edge record | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (driver's external transmitter + interior tuner) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (passenger's external transmitter + interior tuner) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (front interior transmitter + interior tuner) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (rear interior transmitter + interior tuner) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (rear gate internal transmitter + interior tuner) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (rear gate external transmitter + interior tuner) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Collation OK result history (immobilizer amplifier + immobilizer amplifier) | Collation history is displayed | No: When the collation has never been completed before Yes: When the collation has succeeded at least once in the past
Push start SW 1 | Push button start SW1 status | ON: When the push button start SW is pressed OFF: When the push button start SW is not pressed | —
Push start SW 2 | Push button start SW2 status | ON: When the push button start SW is pressed OFF: When the push button start SW is not pressed | —
Stop Light Switch | Brake pedal SW status | ON: When the brake pedal is depressed OFF: When the brake pedal is not depressed | —
Steering unlock SW | Steering lock CM status | ON: When the steering lock is unlocked OFF: Not when the steering lock is unlocked | —
Shift P signal(AT only) | Shift (P) status | ON: When the shift position is “P” OFF: When the shift position is other than “P” | —
Clutch SW(MT only) | Clutch switch status (MT model only) | ON: When the clutch pedal is depressed OFF: When the clutch pedal is not depressed | —
Shift N signal(AT only) | Shift (N) status | ON: When the shift position is “N” OFF: When the shift position is other than “N” | —
Delivery mode signal(AT only) | Delivery mode status | ON: When in delivery mode OFF: When in other than the delivery mode | —
ACC relay monitor | ACC relay drive status | ON: While the accessory relay drive is output OFF: While the accessory relay drive stops | —
IGN latch monitor | IGN latch status | ON: While the IGN latch signal is output OFF: While the IGN latch signal stops | —
STSW signal monitor | Engine start permission signal output status | ON: Press the push button ignition switch while depressing the brake pedal. OFF: Status other than ON | —
IGN1/2 relay monitor (drive output) | Drive output monitoring status of IG relay | ON: While the IG relay 1/2 drive is output OFF: While the IG relay stops | —
IGN1/2 relay monitor (coil voltage) | Coil voltage monitoring status of IG relay | ON: While the IG relay 1/2 drive is output OFF: While the IG relay stops | —
ACCR signal | Accessory cut relay drive status | ON: While the accessory cut relay drive is output OFF: While the accessory cut relay drive stops | —
Vehicle speed signal | Driving condition | Stopped status: During vehicle stoppage Drive status: While driving | —
Engine Speed | Condition of the engine | Yes: While the engine stops Rotating: While the engine is running | —
Vehicle identification | Vehicle recognition status | Vehicle types are displayed. GAS AT GAS MT HEV AT Auto Start Stop AT Auto Start Stop MT PHEV | —
Power supply status | Power supply status | All OFF: IG 1 relay, IG 2 relay, and ACC relay are all OFF ACC Relay ON: Accessory ON IGN1 relay ON status: Ignition ON STSW: Push button ignition switch is pressed with the brake pedal depressed | —
Steering lock unlock wait time-out | Detecting status of the steering lock unlock waiting time out | Angle Not Detected: Steering lock unlock time out has not occurred Angle Detected: Steering lock unlock time out occurred | —
Key collation waiting time out | Detecting status of the key collation waiting time out | Angle Not Detected: Key collation time out has not occurred Angle Detected: Key collation time out occurred | —
IGN1/2 external circuit abnormal | IGN relay output status | Angle Not Detected: IGN 1/2 external circuit is normal Angle Detected: IGN 1/2 external circuit is not normal | —

KEYLESS ACCESS WITH PUSH BUTTON START(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. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Freeze Frame Data>LIST

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Freeze Frame Data
LIST

Item | Contents | Standard/Unit | Note
Trip Count [count] | Time stamp information COMMON(diag)>Time Stamp | time | —
Count |  | —
Time Count [msec] | ms | —

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Active Test
OPERATION
1.

On [Start] screen, select [Diagnosis].

2.

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

3.

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

4.

On [Select System] screen, select [Keyless Access with Push Button Start], and then select «Enter».

5.

On Select Function screen, select [Active Test].

6.

Select a location to be inspected.

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Active Test
LIST

Each output check continues to run for five seconds before stopping automatically.

Active test items | Range | Contents | Execution condition
Driver seat sensor power supply | Output | Perform the output check for the driver’s door touch sensor. | —
Stop
Passenger seat sensor power supply | Output | Perform the output check for the passenger’s door touch sensor. | —
Stop
STSW | Output | Turn on the STSW. ∗2 | —
Stop
ACC | Output | Turn on the ACC. | —
Stop
IGN1/2 | Output | Turn on the IGN1/2. | —
Stop
Start SW character illumination lighted | Output | Perform ON output of the push button ignition switch back-up light.∗1 | —
Stop
Start SW indicator lighted (green) | Output | Perform ON output of the push button ignition switch back-up light.∗1 | —
Stop
Start SW indicator lighted (orange) | Output | Perform ON output of the push button ignition switch back-up light.∗1 | —
Stop
Steering lock power supply | Output | Output the power supply signal from keyless access CM to steering lock CM. | —
Stop

∗1: When lit by a condition other than for active test, it will not become unlit even when set to either OFF or no output.

∗2: When performed with ignition switch ON, engine will start. Therefore, great care must be exercised.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Keyless Access with Push Button Start Check
OPERATION
1.

On [Start] screen, select [Diagnosis].

2.

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

3.

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

4.

On [Select System] screen, select [Keyless Access with Push Button Start], and then select [Next].

5.

On [Select Function] screen, select [Work Support].

6.

On [Work Support] screen, select [Keyless Access with Push Button Start Check].

7.

Select a transmitter to be checked.

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

- For details on items, refer to the list. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check>LIST

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Keyless Access with Push Button Start Check
LIST

Item | Setting items | Note
Keyless Access with Push Button Start Check | Driver side external transmitter - internal tuner | When the setting content on the left is selected, the access key is neared to the selected transmitter (access antenna) and collation matches, the buzzer will sound.
Passenger side external transmitter - internal tuner
Fr internal transmitter - internal tuner
Rr internal transmitter - internal tuner
R gate internal transmitter - internal tuner
R gate external transmitter - internal tuner
Immobilizer amplifier transmission
Collation inspection history deletion | Execution | —
—

KEYLESS ACCESS WITH PUSH BUTTON START(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. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Trouble Code (DTC)
LIST

1. Keyless access CM

   Code | Description & trouble part | Reference
   B2271 | IGN RELAY CONTROL CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2271 IGN RELAY CONTROL CIRCUIT
   B2274 | ACC RELAY CONTROL CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2274 ACC RELAY CONTROL CIRCUIT
   B2275 | ENGINE START REQUEST CONTROL CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT
   B2276 | ACC RELAY OFF SIGNAL | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2276 ACC RELAY OFF SIGNAL
   B2277 | KEYLESS ACCESS CONTROL MODULE (WATER DETECTION) | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2277 SUBMERGING CIRCUIT ABNORMAL
   B227B | PUSH ENGINE START SWITCH INPUT PERFORMANCE | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B227B PUSH ENGINE START SWITCH INPUT PERFORMANCE
   B227C | P RANGE SIGNAL PERFORMANCE | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B227C P RANGE SIGNAL PERFORMANCE
   B2282 | VEHICLE SPEED SIGNAL CORRELATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2282 VEHICLE SPEED SIGNAL CORRELATION
   B2283 | VEHICLE SPEED SENSOR | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2283 VEHICLE SPEED SENSOR
   B2284 | BRAKE SIGNAL CORRELATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2284 BRAKE SIGNAL CORRELATION
   B2285 | STEERING LOCK POSITION SIGNAL CORRELATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2285 STEERING LOCK POSITION SIGNAL CORRELATION
   B2286 | ENGINE SPEED SIGNAL(WITHOUT AUTO START STOP) | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2286 ENGINE SPEED SIGNAL(WITHOUT AUTO START STOP)
   B228A | ENGINE SPEED SIGNAL(WITH AUTO START STOP) | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B228A ENGINE SPEED SIGNAL(WITH AUTO START STOP)
   B2779 | REMOTE CONTROL ENGINE STARTER COLLATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2779 REMOTE CONTROL ENGINE STARTER COLLATION
   B2781 | STEERING LOCK CM CONTROL CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2781 STEERING LOCK CM CONTROL CIRCUIT
   B2782 | STEERING LOCK DRIVE REQUEST SIGNAL CORRELATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2782 STEERING LOCK DRIVE REQUEST SIGNAL CORRELATION
   B2784 | ANTENNA CIRCUIT (PUSH ENGINE SWITCH) | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2784 ANTENNA CIRCUIT (PUSH ENGINE SWITCH)
   B2785 | LIN COMMUNICATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2785 LIN COMMUNICATION
   B2786 | STEERING LOCK CM COMMUNICATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2786 STEERING LOCK CM COMMUNICATION
   B2788 | IGN SIGNAL CORRELATION (STEERING LOCK CM) | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2788 IGN SIGNAL CORRELATION (STEERING LOCK CM)
   B2789 | ID CODE BOX COMMUNICATION | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2789 ID CODE BOX COMMUNICATION
   B278A | PUSH ENGINE SWITCH POWER SUPPLY CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B278A PUSH ENGINE SWITCH POWER SUPPLY CIRCUIT
   B278B | CAN CONTROL MODULE STUCK | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B278B CAN CONTROL MODULE STUCK
   B278D | ID CODE BOX JUDGMENT CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B278D ID CODE BOX JUDGMENT CIRCUIT
   B2790 | ID CODE BOX CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2790 ID CODE BOX CIRCUIT
   B2793 | BACKUP POWER | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2793 BACKUP POWER
   B27A1 | DRIVER SIDE EXTERNAL ANTENNA OPEN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B27A1 DRIVER SIDE EXTERNAL ANTENNA OPEN
   B27A2 | PASSENGER SIDE EXTERNAL ANTENNA OPEN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B27A2 PASSENGER SIDE EXTERNAL ANTENNA OPEN
   B27A5 | FRONT INTERNAL ANTENNA OPEN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B27A5 FRONT INTERNAL ANTENNA OPEN
   B27A6 | REAR INTERNAL ANTENNA OPEN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B27A6 REAR INTERNAL ANTENNA OPEN
   B27A7 | TRUNK/REAR GATE INTERNAL ANTENNA OPEN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B27A7 TRUNK/REAR GATE INTERNAL ANTENNA OPEN
   B27A8 | TRUNK/REAR GATE EXTERNAL ANTENNA OPEN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B27A8 TRUNK/REAR GATE EXTERNAL ANTENNA OPEN
   U0074 | CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0074 CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF
   U0100 | LOST COMMUNICATION WITH ECM/PCM "A" | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"
   U0101 | LOST COMMUNICATION WITH TCM | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0101 LOST COMMUNICATION WITH TCM
   U0122 | LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE
   U0155 | LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE | KEYLESS ACCESS WITH PUSH BUTTON START(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" | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"
   U0423 | INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE
   U1120 | LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE
   U1140 | LOST COMMUNICATION WITH BODY CONTROL MODULE BODY-CAN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1140 LOST COMMUNICATION WITH BODY CONTROL MODULE BODY-CAN
   U1198 | Lost Communication With Telematics System | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1198 LOST COMMUNICATION WITH TELEMATICS SYSTEM
   U1422 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE BODY-CAN | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE BODY-CAN

2. ECM

   Code | Description & trouble part | Reference
   B1571 | REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM) | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)
   B1572 | IMM CIRCUIT EXCEPT ANTENNA CIRCUIT | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1572 IMM CIRCUIT EXCEPT ANTENNA CIRCUIT
   B1576 | ECM EEPROM | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1576 EGI CONTROL MODULE EEPROM
   B1577 | IMMOBILIZER CM EEPROM | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B1577 IMM CONTROL MODULE EEPROM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)

DTC detecting condition:

Incompatibility of reference code between keyless access CM (model without ID code box) or ID code box (model with ID code box) and ECM occurs.

Trouble symptom:

Engine will not start.

- For replacement procedure of keyless access CM (model without ID code BOX) or ID code box (model with ID code BOX) or ECM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK ECM.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration finished? And does the engine start?

ECM registration was not performed properly.

2

2. REPLACE ECM.
1.

Install the ECM from other normal operating vehicle (with push button start) which use same ECM to the vehicle to be diagnosed.

2.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration finished? And does the engine start?

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)>REMOVAL Install the ECM from other vehicle to the original vehicle.

Replace the keyless access CM (model without ID code box) SECURITY AND LOCKS>Keyless Access CM or the ID code box (model with ID code box). SECURITY AND LOCKS>ID Code Box

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1572 IMM CIRCUIT EXCEPT ANTENNA CIRCUIT
1. EXCEPT FOR C5 MODEL

DTC detecting condition:

Communication error between keyless access CM and ECM

Trouble symptom:

Engine will not start.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and ECM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK GROUNDING POINT.
no

2

yes
2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
6. CHECK ECM.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK GROUNDING POINT.

Check the grounding point of the engine ground and chassis ground.

Is there any looseness? Are there any foreign matters caught on the ground or contact surface? Are there any oil-soiled areas?

Remove the foreign matters, and tighten to the specified torque. Then start the engine, and check that the fault was removed. Check the DTC, and when DTC B1572 is still displayed, 2

2

2. CHECK DATA MONITOR.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, check [Data monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

3.

Display the following data: [Immobilizer] [Engine start] [Unlock confirmation].

Data

[Immobilizer] = [Unset]

[Engine start] = [E/G Start Permission]

[Unlock confirmation] = [Confirmed]

Is the data displayed as described above?

3

Perform diagnostics with phenomenon. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > ENGINE DOES NOT START

3. CHECK DATA MONITOR.

Use the Subaru Select Monitor to check the following items in [Data monitor] of [Keyless Access with Push Button Start] when holding down the push button ignition switch while depressing on the brake pedal. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

Data

[EGI code reception status] = [Receive]

If [Receive] is displayed, the status changes to [No receive] in 10 seconds. When performing the check again, perform the check after turning the ignition switch to OFF.

Is the data displayed as described above?

4

Repair or replace the harness between keyless access CM and ECM.

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the keyless access CM connector and ECM connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and ECM connector.

Connector & terminal

(i241) No. 15 — (B134) No. 6:

Is the resistance less than 10 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK ECM.
1.

Install the ECM from other normal operating vehicle (with push button start) which use same ECM to the vehicle to be diagnosed.

2.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration finished? And does the engine start?

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)>REMOVAL Install the ECM from other vehicle to the original vehicle.

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

2. C5 MODEL

DTC detecting condition:

Communication error between ID code box and ECM

Trouble symptom:

Engine will not start.

Wiring diagram:

Immobilizer system WIRING SYSTEM>Immobilizer System>WIRING DIAGRAM

- For replacement procedure of ID code box and ECM, refer to “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK GROUNDING POINT.
no

2

yes
2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
4. CHECK ECM.
yes

Perform the instructed procedures.

no

5

5. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
6. CHECK HARNESS (OPEN CIRCUIT).
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK GROUNDING POINT.

Check the grounding point of the engine ground and chassis ground.

Is there any looseness? Are there any foreign matters caught on the ground or contact surface? Are there any oil-soiled areas?

Remove the foreign matters, and tighten to the specified torque. Then start the engine, and check that the fault was removed. Check the DTC, and when DTC B1572 is still displayed, 2

2

2. CHECK DATA MONITOR.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, check [Data monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

3.

Display the following data: [Immobilizer] [Engine start] [Unlock confirmation].

Data

[Immobilizer] = [Unset]

[Engine start] = [E/G Start Permission]

[Unlock confirmation] = [Confirmed]

Is the data displayed as described above?

3

Perform diagnostics with phenomenon. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > ENGINE DOES NOT START

3. CHECK DATA MONITOR.

Use the Subaru Select Monitor to check the following items in [Data Monitor] of [Keyless Access with Push Button Start] when holding down the push button ignition switch while depressing on the brake pedal. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

Data

[EGI code reception status] = [Receive]

If [Receive] is displayed, the status changes to [No receive] in 10 seconds. When performing the check again, perform the check after turning the ignition switch to OFF.

Is the data displayed as described above?

4

Repair or replace the harness between ID code box and ECM.

4. CHECK ECM.
1.

Install the ECM from other normal operating vehicle (with push button start) which use same ECM to the vehicle to be diagnosed.

2.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration finished? And does the engine start?

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)>REMOVAL Install the ECM from other vehicle to the original vehicle.

5

5. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the ID code box connector and the ECM connector.

3.

Using a tester, measure the resistance between ID code box connector and ECM connector.

Connector & terminal

(i33) No. 4 — (B134) No. 6:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between ID code box connector and chassis ground.

Connector & terminal

(i33) No. 5 — Chassis ground:

Is the resistance less than 10 Ω?

Replace the ID code box. SECURITY AND LOCKS>ID Code Box

Repair or replace the open circuit of harness.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1576 EGI CONTROL MODULE EEPROM

DTC detecting condition:

- ECM malfunctioning

- When the ROM in ECM was inaccessible during registration.

Trouble symptom:

Engine cannot be started.

- For replacement procedure of ECM, refer to “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. PERFORM ECM REGISTRATION.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration complete?

Make sure that the engine can start. This completes the work.

2

2. PERFORM ECM REGISTRATION.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration complete?

Make sure that the engine can start. This completes the work.

3

3. PERFORM ECM REGISTRATION.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration complete?

Make sure that the engine can start. This completes the work.

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)>REMOVAL

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1577 IMM CONTROL MODULE EEPROM
1. EXCEPT FOR C5 MODEL

DTC detecting condition:

- Defective keyless access CM

- When inaccessible to ROM in keyless access CM.

Trouble symptom:

Engine cannot be started.

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

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

3.

Turn the ignition switch to OFF.

4.

Remove and install the battery. REPAIR CONTENTS>NOTE>BATTERY>GROUND TERMINAL REMOVAL OR INSTALLATION

5.

Turn the ignition switch to ON.

6.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

7.

After 5 seconds or more elapse, read the DTC of [Engine] using the Subaru Select Monitor. ENGINE (DIAGNOSTICS)(H4DO)>Diagnostic Trouble Code (DTC)

Is DTC B1577 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

- 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. C5 MODEL

DTC detecting condition:

- ID code box malfunction

- When inaccessible to ROM in ID code box.

Trouble symptom:

Engine cannot be started.

- For replacement procedure of ID code box, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

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

3.

Turn the ignition switch to OFF.

4.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

5.

Read the DTC of [Engine] using the Subaru Select Monitor again. ENGINE (DIAGNOSTICS)(H4DO)>Diagnostic Trouble Code (DTC)

Is DTC B1577 displayed? (Current malfunction)

Replace the ID code box. SECURITY AND LOCKS>ID Code Box

- 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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2271 IGN RELAY CONTROL CIRCUIT

DTC detecting condition:

When malfunction judgment (difference occurs between output value and monitoring result) continues 3 times at one second interval (periodical check) during transition of power supply status from ACC ON → IGN SW ON (initial check) or with IGN SW ON.

Trouble symptom:

Not all functions operate at IGN ON.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

3

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

3. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 27 — Chassis ground:

Is the resistance 74.15 — 460.88 Ω? (At 20°C)

6

Check IG relay 2. 7

6. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 28 — Chassis ground:

Is the resistance 50.87 — 72.17 Ω? (At 20°C)

8

Check IG relay 1. 7

7. CHECK RELAY.

Perform unit inspection of IG relay 1 and IG relay 2. SECURITY AND LOCKS>Relay and Fuse>INSPECTION > CHECK RELAY

Is the check result OK?

8

Replace the relay. SECURITY AND LOCKS>Relay and Fuse

8. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 27 (+) — Chassis ground (−):

(i75) No. 28 (+) — Chassis ground (−):

Does the voltage change as 1 V or less → 9.5 — 16 V according to the operation of ACC → IGN 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.

Replace the keyless access CM.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2274 ACC RELAY CONTROL CIRCUIT

DTC detecting condition:

When any of the following conditions is established.

- Both ACC output ON and output circuit monitor result OFF continues for 10 seconds.

- ACC output OFF and output circuit monitor result ON both continues for 10 seconds.

Trouble symptom:

Each function does not operate at the ACC position.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK LAN SYSTEM.

Inspect 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 FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

3

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

3. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 16 — Chassis ground:

Is the resistance 152.61 — 216.5 Ω? (At 20°C)

7

6

6. CHECK RELAY.

Perform inspection of ACC relay unit. SECURITY AND LOCKS>Relay and Fuse

Is the relay OK?

7

Replace the relay.

7. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and the accessory relay (push button start), and between the accessory relay (push button start) and chassis ground.

Connector & terminal

(i75) No. 16 — (i137) No. 2:

(i136) No. 6 — Chassis ground:

Is the resistance less than 1 Ω?

8

Repair or replace the open circuit of harness.

8. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Using a tester, measure the voltage between keyless access CM connectors.

Connector & terminal

(i75) No. 16 (+) — Chassis ground (−):

Does the voltage change as 1 V or less → 9.5 — 16 V according to the operation of OFF → ACC 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.

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2275 ENGINE START REQUEST CONTROL CIRCUIT

DTC detecting condition:

When any of the following conditions is established with ignition switch ON.

- Both starter output ON and output circuit monitor result OFF are successful 3 times in a row.

- Starter output OFF, output circuit monitor result ON and remote engine starter not under control all continue for 10 seconds.

Trouble symptom:

Engine will not start.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

3

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector and ECM connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and ECM.

Connector & terminal

(i75) No. 23 — (B134) No. 25:

Is the resistance less than 1 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 23 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

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

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 23 (+) — Chassis ground (−):

Is the voltage 1 V or less?

7

Repair or replace the short circuit of the harness.

7. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector and ECM connector.

2.

Place the access key in the passenger room.

3.

Using a tester, measure the voltage between the terminals of keyless access CM connector.

Connector & terminal

(i75) No. 23 (+) — (i75) No. 20 (−):

Is the voltage 2 V or less → 9 V or more when the push button ignition switch is turned on while depressing the brake pedal with the shift position in P or N?

Perform inspection according to the diagnosis of engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure>PROCEDURE

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2276 ACC RELAY OFF SIGNAL

DTC detecting condition:

When ACC cut input ON (“L” level) continues for 40 seconds with ignition switch ON.

Trouble symptom:

- The accessory power supply is not cut during engine start.

- Starter rotation is slow.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and ECM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector and ECM connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and ECM.

Connector & terminal

(i75) No. 19 — (B134) No. 34:

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 19 — Chassis ground:

Is the resistance 10 kΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

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

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 (+) — Chassis ground (−):

(i75) No. 20 (+) — Chassis ground (−):

Is the voltage 1 V or less?

6

Repair or replace the open circuit of harness.

6. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector and ECM connector.

2.

Place the access key in the passenger room.

3.

Using a tester, measure the voltage between terminals of the keyless access CM connector when the push button ignition switch is pressed, while depressing the brake pedal with the shift lever in the “P” range.

Connector & terminal

(i75) No. 19 (+) — (i75) No. 20 (−):

Does the voltage show 9.5 — 16 V → 1 V or less?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)>REMOVAL

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2277 SUBMERGING CIRCUIT ABNORMAL

DTC detecting condition:

Submersion circuit monitor result ON continues for 300 seconds.

Trouble symptom:

- The ignition can be turned ON, but cannot be turned OFF.

- Engine will not start.

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 SUBMERSION CONDITION.

Check the keyless access CM and environment of equipment, and check the harness for any trace of water submersion.

Is there any trace of water submersion?

Take necessary measures against water submersion and replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B227B PUSH ENGINE START SWITCH INPUT PERFORMANCE

DTC detecting condition:

When any of the following conditions is established.

- Judgment of Switch ON stuck is present. (When any of the following conditions is established)

  1. The status continues for 40 seconds where push button ignition switch input (SSW1 terminal) is ON (“L” level) and push button ignition switch input (SSW2 terminal) is OFF (“H” level).

  2. The status continues for 40 seconds where push button ignition switch input (SSW1 terminal) is OFF (“H” level) and push button ignition switch input (SSW2 terminal) is ON (“L” level).

- Judgment of OFF stuck is present. (When any of the following conditions is established 10 times in a row)

  Only when a series of judgment is continuously made with the same judgment condition under either condition of 1 or 2.

  1. Push button ignition switch input (SSW1 terminal) is OFF (“H” level) → ON (“L” level) → OFF, and push button ignition switch input (SSW2 terminal) is OFF (“H” level).

  2. Push button ignition switch input (SSW1 terminal) is OFF (“H” level), and push button ignition switch input (SSW2 terminal) is OFF (“H” level) → ON (“L” level) → OFF.

Trouble symptom:

- Power supply cannot be turned ON.

- Power supply cannot be turned OFF.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Press the push button ignition switch to perform OFF → ACC ON → IGN ON respectively for one minute.

3.

Disconnect and reconnect the keyless access CM connector.

4.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B227B 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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the push button ignition switch connector.

2.

Disconnect the keyless access CM connector.

3.

Using a tester, measure the resistance between the push button ignition switch connector and the keyless access CM connector and chassis ground.

Connector & terminal

(i150) No. 2 — (i75) No. 9:

(i150) No. 7 — (i75) No. 8:

(i150) No. 5 — Chassis ground

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK PUSH BUTTON IGNITION SWITCH UNIT.

Perform individual inspection of the push button ignition switch. SECURITY AND LOCKS>Push Button Ignition Switch

Is the check result OK?

4

Replace the push button ignition switch. SECURITY AND LOCKS>Push Button Ignition Switch

4. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Push start SW 1

- Push start SW 2

Is it turned ON when pressing the push button ignition switch?

- 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.

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B227C P RANGE SIGNAL PERFORMANCE

DTC detecting condition:

When any of the following conditions is established for CVT model.

- The status continues for 20 seconds where the ignition switch is ON, and the shift position (P terminal) is in shift P (“L” level), and the shift information on CAN is other than P.

- The status continues for 20 seconds where the ignition switch is ON, and the shift position (P terminal) is in other than shift P (“H” level), and the shift information on CAN is P.

Trouble symptom:

- Engine will not start.

- Power supply control cannot be executed.

- The steering lock is not possible.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Turn the IGN switch to ON.

3.

Place the shift lever in other than P and leave it for one minute.

4.

Disconnect and reconnect the keyless access CM connector.

5.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B227C 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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the P range switch connector.

2.

Disconnect the keyless access CM connector.

3.

Using a tester, measure the resistance between the P range switch connector and the keyless access CM connector.

Connector & terminal

(i44) No. 1 — (i241) No. 18:

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the body integrated unit connector.

2.

Using a tester, measure the resistance between body integrated unit connector and keyless access CM connector.

Connector & terminal

(B281) No. 17 — (i241) No. 30

(B281) No. 19 — (i241) No. 29

Is the resistance less than 1 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Shift P signal(AT only)

Is it turned ON when the shift position is “P”? Is it turned OFF when the shift position is other than “P”?

- 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.

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2282 VEHICLE SPEED SIGNAL CORRELATION

DTC detecting condition:

When any of the following conditions is established with ignition switch ON.

- The status continues for 20 seconds where a vehicle speed signal on direct line is less than 5 km/h (3 MPH) and a vehicle speed signal on CAN is 25 km/h (16 MPH) or more.

- The status continues for 20 seconds where a vehicle speed signal on direct line is 25 km/h (16 MPH) or more and a vehicle speed signal on CAN is less than 5 km/h (3 MPH).

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 COMBINATION METER.

Check that the speedometer is displayed normally.

Is the meter display normal?

3

Check the VDC. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

3. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Vehicle speed signal

Is the display normal according to the parked state or driving state?

- 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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the VDC CM connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and VDC CM connector.

Connector & terminal

(i75) No. 7 — (B310) No. 35:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 7 — Chassis ground:

Is the resistance 30 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK KEYLESS ACCESS CM.
1.

Connect each connector.

2.

Using an oscilloscope, measure the waveform between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 7 — Chassis ground:

Is 3.54 Hz displayed when the vehicle is driven approx. at 5 km/h (3 MPH)? Or does the value change from 3.54 Hz when the vehicle stops?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Check the VDC. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2283 VEHICLE SPEED SENSOR

DTC detecting condition:

When any of the following conditions is established with ignition switch ON.

- The status continues for 10 seconds where a vehicle speed signal on CAN or direct line is 50 km/h (31 MPH) or more, and then the vehicle speed signal on CAN and direct line becomes 0 km/h within one second.

- For CVT model, the following status continues for 300 seconds: Vehicle speed signal on CAN and direct line is 0 km/h (0 MPH) or an engine speed signal on CAN or direct line is 2000 rpm or more, and the shift position is in other than P (P-SW or CAN) or N (CAN) range, and accessory cut relay signal input information level is ≈ “L”.

- For MT model, the following status continues for 300 seconds: Vehicle speed (CAN = 0 km/h (0 MPH) and direct line = 0 km/h (0 MPH)) and engine speed (CAN or direct line) is equal to or greater than 2000 rpm, and the clutch SW = OFF, and accessory cut relay signal input information is ≈ “L” level.

Trouble symptom:

The steering lock cannot be released.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 COMBINATION METER.

Check that the speedometer is displayed normally.

Is the check result OK?

3

Check the VDC. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

3. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Vehicle speed signal

Is the display normal according to the parked state or driving state?

- 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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the VDC CM connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and VDC CM connector.

Connector & terminal

(i75) No. 7 — (B310) No. 35:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 7 — Chassis ground:

Is the resistance 30 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK KEYLESS ACCESS CM.
1.

Connect each connector.

2.

Using an oscilloscope, measure the waveform between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 7 — Chassis ground:

Is 3.54 Hz displayed when the vehicle is driven approx. at 5 km/h (3 MPH)? Or does the value change from 3.54 Hz when the vehicle stops?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Check the VDC. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2284 BRAKE SIGNAL CORRELATION

DTC detecting condition:

The status continues for 20 seconds where brake signals (ON/OFF) between direct line and CAN do not match with ignition switch ON.

Trouble symptom:

If the hard-wired brake signal is faulty, the engine will not start with a normal operation.

Wiring diagram:

Stop light system WIRING SYSTEM>Stop Light System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Stop Light Switch

Does the display change correctly according to the brake pedal operation?

3

Check the stop light system.

3. CHECK DATA MONITOR.

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

- Stop Light Switch

Does the display change correctly according to the brake pedal operation?

4

Check body integrated unit. BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE And check the stop light switch circuit.

4. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

5

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

5. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

6

Check the power supply circuit.

6. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the stop light switch connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and stop light switch connector.

Connector & terminal

(i241) No. 27 — (B65) No. 2:

Is the resistance less than 1 Ω?

8

Repair or replace the open circuit of harness.

8. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 27 — Chassis ground:

Is the resistance 10 kΩ or more?

9

Repair or replace the short circuit of the harness.

9. CHECK HARNESS.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground when the brake pedal is depressed.

Connector & terminal

(i241) No. 27 (+) — Chassis ground (−):

Does the voltage change as follows? Brake pedal not depressed: 1 V or less → Brake pedal depressed: 11 — 14 V

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

Check the power supply circuit of stop light switch.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2285 STEERING LOCK POSITION SIGNAL CORRELATION

DTC detecting condition:

When any of the following conditions is established with ignition switch ON.

- The status continues for 40 seconds where steering lock position information on direct line is unlock (“L” level), and steering lock position information on LIN communication is other than unlock.

- The status continues for 40 seconds where steering lock position information on direct line is other than unlock (“H” level), and steering lock position information on LIN communication is unlock.

Trouble symptom:

- There are conditions when the steering lock is not released.

- Engine will not start.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed? (Current malfunction)

Perform the diagnosis of DTC B2785. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2785 LIN COMMUNICATION

3

3. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

When locked:

- Lock side sensor status: ON

- Unlock side sensor status: OFF

- Lock confirmation: Set

- Unlock confirmation: Unconfirmed

When unlocked:

- Lock side sensor status: OFF

- Unlock side sensor status: ON

- Lock confirmation: Unconfirmed

- Unlock confirmation: OK

To lock the steering lock, turn off the power, and open → close, or close → open the driver’s door. To unlock the steering lock, turn the ignition switch to ACC ON or IGN ON.

Is the display shown as above according to the steering lock status?

4

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM>REPLACEMENT

4. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

When locked:

- Steering unlock SW: OFF

When unlocked:

- Steering unlock SW: ON

To lock the steering lock, turn off the power, and open → close, or close → open the driver’s door. To unlock the steering lock, turn the ignition switch to ACC ON or IGN ON.

Is the display shown as above according to the steering lock status?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

5

5. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

6

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

6. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between keyless access CM connectors.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

7

Check the power supply circuit.

7. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

8

Repair or replace the open circuit of harness.

8. CHECK STEERING LOCK CM.

Using a tester, measure the resistance between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 4 — Chassis ground:

Does the following occur? Steering lock: 10 kΩ or more → Steering unlock: less than 1 Ω

9

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM>REPLACEMENT

9. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the steering lock CM connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and steering lock CM connector.

Connector & terminal

(i75) No. 11 — (i47) No. 4:

Is the resistance less than 1 Ω?

10

Repair or replace the open circuit of harness.

10. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 11 — Chassis ground:

Is the resistance 10 kΩ or more?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

Repair or replace the short circuit of the harness.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2286 ENGINE SPEED SIGNAL(WITHOUT AUTO START STOP)

DTC detecting condition:

For model without Auto Start Stop, when any of the following conditions continues for 20 seconds with ignition switch ON.

- Engine speed signal on direct line is less than 200 rpm, and engine speed signal on CAN is 1000 rpm or more.

- Engine speed signal on direct line is 1000 rpm or more, and engine speed signal on CAN is less than 200 rpm.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 COMBINATION METER.

Confirm that the speedometer is displayed normally.

Is combination meter display OK?

3

Perform the diagnosis for the engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure>PROCEDURE

3. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Engine Speed

Can the data be read normally?

- 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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the ECM connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and ECM connector.

Connector & terminal

(i75) No. 6 — (B134) No. 21:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 6 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK HARNESS.
1.

Connect the keyless access CM connector and ECM connector.

2.

Using an oscilloscope, measure the waveform between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 6 — Chassis ground:

Does the pulse stop when the engine is stopped, and does the pulse generate when the engine is started?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Perform the diagnosis for the engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure>PROCEDURE

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B228A ENGINE SPEED SIGNAL(WITH AUTO START STOP)

DTC detecting condition:

For model with Auto Start Stop, when any of the following conditions continues for 20 seconds with ignition switch ON.

- Engine speed signal on direct line is less than 200 rpm, and engine speed signal on CAN is 1000 rpm or more.

- Engine speed signal on direct line is 1000 rpm or more, and engine speed signal on CAN is less than 200 rpm.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 COMBINATION METER.

Confirm that the speedometer is displayed normally.

Is combination meter display OK?

3

Perform the diagnosis for the engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure>PROCEDURE

3. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Engine Speed

Can the data be read normally?

- 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 HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the ECM connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and ECM connector.

Connector & terminal

(i75) No. 6 — (B134) No. 21:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 6 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK HARNESS.
1.

Connect the keyless access CM connector and ECM connector.

2.

Using an oscilloscope, measure the waveform between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 6 — Chassis ground:

Does the pulse stop when the engine is stopped, and does the pulse generate when the engine is started?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Perform the diagnosis for the engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure>PROCEDURE

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2779 REMOTE CONTROL ENGINE STARTER COLLATION

DTC detecting condition:

When any of the following conditions is established in remote control engine starter registration or during remote control engine starter operation.

- No response is obtained from remote control engine starter (including retry).

- Cryptographic communication does not match with remote control engine starter (including retry).

Trouble symptom:

Remote engine starter does not function.

Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. REGISTER THE REMOTE ENGINE STARTER.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Register the remote engine starter using the Subaru Select Monitor. (Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.)

When the registration failed, refer to “Correspondence table when registration is not possible” in “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2779 displayed? (Current malfunction)

Replace the remote engine starter.

- 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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2781 STEERING LOCK CM CONTROL CIRCUIT

DTC detecting condition:

When any of the following conditions is established.

- Steering lock position (inside steering lock CM) sensor malfunction

- Steering lock motor driver (inside steering lock CM) short circuit malfunction

- Steering lock motor driver (inside steering lock CM) open circuit malfunction

Trouble symptom:

- The steering lock cannot be released.

- Engine will not start.

- For replacement procedure of steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

When all ECMs connected to collation system LIN bus cannot communicate with the keyless access CM, DTC B2785 is output. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2785 LIN COMMUNICATION

1. CHECK DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed? (Current malfunction)

Perform the diagnosis of DTC B2785. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2785 LIN COMMUNICATION

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2782 STEERING LOCK DRIVE REQUEST SIGNAL CORRELATION

DTC detecting condition:

When any of the following conditions is established.

- Motor power supply terminal (SLR+terminal) short circuit malfunction

- Motor power supply terminal (SLR+terminal) open circuit malfunction

Trouble symptom:

- The steering lock cannot be released.

- Engine will not start.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the steering lock CM connector.

2.

Using a tester, measure the resistance between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 1 — Chassis ground:

Is the resistance less than 1 Ω?

2

Repair or replace the open circuit of harness.

2. CHECK STEERING LOCK CM.
1.

Connect the steering lock CM connector.

2.

Set to ACC OFF, IGN OFF, and shift position P.

3.

Using a tester, open the door, and measure the voltage between terminals of steering CM connector when the steering lock motor is driven.

Connector & terminal

(i47) No. 3 (+) — (i47) No. 1 (−):

Does the voltage change as follows? When steering lock motor is in operation, 1 V or less → When steering lock motor is not in operation, 11 — 14 V

3

4

3. CHECK DTC.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Turn the ignition switch to OFF.

4.

Disconnect the ground terminal from the battery sensor and reconnect it, then clear the abnormal information displayed on [Data Monitor].REPAIR CONTENTS>NOTE > BATTERY

5.

Turn the ignition switch to ON.

6.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2782 displayed? (Current malfunction)

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

- 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 CONNECTOR.
1.

Disconnect the steering lock CM connector.

2.

Disconnect the keyless access CM connector.

3.

Check each connector.

Is the check result OK?

5

Repair or replace the connector.

5. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between steering lock CM connector and keyless access CM connector.

Connector & terminal

(i75) No. 10 — (i47) No. 3:

Is the resistance less than 1 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 10 — Chassis ground:

Is the resistance 10 kΩ or more?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Repair or replace the short circuit of the harness.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2784 ANTENNA CIRCUIT (PUSH ENGINE SWITCH)

DTC detecting condition:

When the keyless access CM receives the data of Abnormal antenna coil from transponder key amplifier via transponder communication (communication between keyless access CM — push button ignition SW) during initial operation of transponder collation.

Trouble symptom:

Power cannot be switched, engine does not start even when the access key is pointed toward the vehicle.

Wiring diagram:

Immobilizer system WIRING SYSTEM>Immobilizer System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK PUSH BUTTON IGNITION SWITCH.
1.

Disconnect the push button ignition switch connector.

2.

Disconnect the keyless access CM connector.

3.

Using a tester, measure the resistance between the push button ignition switch connector and the keyless access CM connector.

Connector & terminal

(i150) No. 9 — (i241) No. 19:

(i150) No. 10 — (i241) No. 22:

(i150) No. 14 — (i241) No. 21:

(i150) No. 8 — (i241) No. 24:

Is the resistance less than 1 Ω?

2

Repair or replace the open circuit of harness.

2. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the push button ignition switch connector and chassis ground.

Connector & terminal

(i150) No. 14 — Chassis ground:

(i150) No. 9 — Chassis ground:

(i150) No. 10 — Chassis ground:

Is the resistance 10 kΩ or more?

3

Repair or replace the short circuit of the harness.

3. CHECK PUSH BUTTON IGNITION SWITCH.
1.

Replace the push button ignition switch. SECURITY AND LOCKS>Push Button Ignition Switch

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2784 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Malfunction occurred in the push button ignition switch.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2785 LIN COMMUNICATION

DTC detecting condition:

When LIN communication error is detected 3 times in a row.

(Communication cannot be received because a problem occurs such as a series of noise continuously generated in LIN communication bus during power supply or ground short circuit in LIN communication bus)

Trouble symptom:

The keyless access function may not be operable.

Wiring diagram:

Immobilizer system WIRING SYSTEM>Immobilizer System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, steering lock CM and ID code box, refer to “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 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 HARNESS (BETWEEN KEYLESS ACCESS CM AND STEERING LOCK CM).
1.

Disconnect the ground terminal from battery sensor.REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the keyless access CM connector.

3.

Disconnect the steering lock CM connector.

4.

For model with ID code box, disconnect the ID code box connector.

5.

Using a tester, measure the resistance between the keyless access CM connector and steering lock CM connector.

Connector & terminal

(i241) No. 20 — (i47) No. 5:

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector or steering lock CM connector and chassis ground.

Connector & terminal

(i241) No. 20 — Chassis ground:

(i47) No. 5 — Chassis ground:

Is the resistance 10 kΩ or more?

4

Repair or replace the short circuit of the harness.

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

Using a tester, measure the voltage between the keyless access CM connector or steering lock CM connector and chassis ground.

Connector & terminal

(i241) No. 20 (+) — Chassis ground (−):

(i47) No. 5 (+) — Chassis ground (−):

Is the voltage 1 V or less?

For model with ID code box, 5 For model without ID code box, 6

Repair or replace the short circuit of the harness.

5. CHECK HARNESS (BETWEEN KEYLESS ACCESS CM AND ID CODE BOX).

Using a tester, measure the resistance between the keyless access CM connector and the ID code box connector.

Connector & terminal

(i241) No. 20 — (i33) No. 2:

Is the resistance less than 1 Ω?

6

Repair or replace the open circuit of harness.

6. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

7

7. CHECK STEERING LOCK CM.
1.

Connect the steering lock CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed? (Current malfunction)

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

- For model with ID code box, 8

- For model without ID code box, 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.

8. CHECK ID CODE BOX.
1.

Connect the ID code box connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed? (Current malfunction)

Replace the ID code box. SECURITY AND LOCKS>ID Code Box

- 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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2786 STEERING LOCK CM COMMUNICATION

DTC detecting condition:

When LIN transmission frame is received from steering lock CM once, but cannot be received for 10 seconds in a row during LIN bus Wake-up.

Trouble symptom:

The steering lock cannot be released.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are DTCs other than DTC B2786 displayed? (Current malfunction)

Perform the diagnosis of DTCs other than B2786. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

2

2. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the steering lock CM connector.

3.

Using the tester, measure the resistance between terminals.

Connector & terminal

(i241) No. 20 — (i47) No. 5:

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM and chassis ground.

Connector & terminal

(i241) No. 20 — Chassis ground:

Is the resistance 10 kΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 1 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS.
1.

Turn the ignition switch to ON.

2.

Using a tester, measure the voltage between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 6 (+) — Chassis ground (−):

(i47) No. 7 (+) — Chassis ground (−):

Is the voltage 11 — 14 V?

6

Repair or replace the faulty portion of the power supply circuit.

6. CHECK STEERING LOCK CM.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

7

7. CHECK STEERING LOCK CM.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2786 displayed? (Current malfunction)

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

- 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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2788 IGN SIGNAL CORRELATION (STEERING LOCK CM)

DTC detecting condition:

When one second elapses while the ignition switch status is not compatible between LIN communication and direct line.

Trouble symptom:

The steering lock cannot be released.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

2

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

2. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- IGN1/2 relay monitor (drive output)

Is the display normal according to the ignition switch operation?

3

5

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the steering lock CM connector.

2.

Using a tester, measure the resistance between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 1 — Chassis ground:

Is the resistance less than 1 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS.
1.

Connect the steering lock CM connector.

2.

Using a tester, measure the voltage between the steering lock CM connector terminals.

Connector & terminal

(i47) No. 6 (+) — (i47) No. 1 (−):

Is the voltage 11 — 14 V with IG ON?

Is the voltage less than 1 V with IG OFF?

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

Check the DC power supply circuit.

5. CHECK DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2271 displayed? (Current malfunction)

Perform the diagnosis of DTC B2271. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2271 IGN RELAY CONTROL CIRCUIT

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2789 ID CODE BOX COMMUNICATION

DTC detecting condition:

When LIN transmission frame is received from ID code BOX once, but cannot be received for 10 seconds in a row during LIN bus Wake-up.

Trouble symptom:

Engine will not start.

Wiring diagram:

Immobilizer system WIRING SYSTEM>Immobilizer System>WIRING DIAGRAM

- For replacement procedure of keyless access CM and ID code box, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2789 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 HARNESS (GROUND SHORT CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 20 — Chassis ground:

Is the resistance 10 kΩ or more?

3

Repair or replace the short circuit of the harness.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the ID code box connector.

2.

Using a tester, measure the resistance between the keyless access CM connector and the ID code box connector.

Connector & terminal

(i241) No. 20 — (i33) No. 2:

Is the resistance less than 1 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between ID code box connector and chassis ground.

Connector & terminal

(i33) No. 5 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS.

Using a tester, measure the voltage between ID code box connector and chassis ground.

Connector & terminal

(i33) No. 1 (+) — Chassis ground (−):

Is the voltage 11 — 14 V?

6

Repair or replace the faulty portion of the power supply circuit.

6. CHECK STEERING LOCK CM.
1.

Turn the ignition switch to ON.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2789 displayed? (Current malfunction)

Replace the ID code box. SECURITY AND LOCKS>ID Code Box

7

7. CHECK ID CODE BOX.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2785 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

- 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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B278A PUSH ENGINE SWITCH POWER SUPPLY CIRCUIT

DTC detecting condition:

Short circuit to ground in transponder power supply (VC5 terminal) at initial operation of transponder collation.

(Determined as short circuit to ground when the transponder power supply (VC5 terminal) output is at “H” level but is judged as “L” level as a result of monitoring the transponder power supply (VC5 terminal) output level inside keyless access CM.)

Trouble symptom:

Power cannot be switched, engine does not start even when the access key is pointed toward the vehicle.

Wiring diagram:

Immobilizer system WIRING SYSTEM>Immobilizer System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK KEYLESS ACCESS CM.
1.

Turn the ignition switch to OFF.

2.

Take the access key out of the passenger room.

3.

Using an oscilloscope, measure the waveform between the push button ignition switch connectors. (Waveform within 30 seconds after push button ignition switch is pressed)

Connector & terminal

(i150) No. 14 — (i150) No. 8:

Is a waveform as above displayed?

Replace the push button ignition switch. SECURITY AND LOCKS>Push Button Ignition Switch

2

2. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the push button ignition switch connector.

3.

Using a tester, measure the resistance between the push button ignition switch connector and the keyless access CM connector.

Connector & terminal

(i150) No. 14 — (i241) No. 21:

(i150) No. 8 — (i241) No. 24:

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit of harness.

3. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 21 — Chassis ground:

(i241) No. 24 — Chassis ground:

Is the resistance 10 kΩ or more?

4

Repair or replace the short circuit of the harness.

4. CHECK DTC.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B278A displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

- 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.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B278B CAN CONTROL MODULE STUCK

DTC detecting condition:

When incompatible state is detected two times in a row in every Wake-up of microcomputer, after detecting incompatible state between written data and read-out data to/from register for CAN check after resetting.

(When incompatible state is detected three times in a row which consist of one time at resetting + two times at microcomputer Wake-up)

Trouble symptom:

The operation is performed with information of the last value as right, but basically the system operation is deactivated.

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B278D ID CODE BOX JUDGMENT CIRCUIT

DTC detecting condition:

When there is no connection of harness for ID code BOX presence judgment and ID code BOX LIN response is present while keyless access CM has no key registration.

Trouble symptom:

Initial registration for the access key is not possible.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
1.

Turn the ignition switch to OFF.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Turn the ignition switch to OFF → ON.

4.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B278D 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 HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Measure the resistance between keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 18 — Chassis ground:

Is the resistance less than 1 Ω?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Repair or replace the open circuit of harness.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2790 ID CODE BOX CIRCUIT

DTC detecting condition:

When EEPROM cannot be written in or readout response is absent.

Trouble symptom:

Engine will not start.

- For replacement procedure of ID code box, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
1.

Turn the ignition switch to OFF.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Turn the ignition switch to OFF → ON.

4.

Register the ID code box. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

5.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2790 displayed? (Current malfunction)

Replace the ID code box. SECURITY AND LOCKS>ID Code Box

ID code box registration was not performed properly.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2793 BACKUP POWER

DTC detecting condition:

When +B power supply (SUB) input is less than 9.5 V continuously for 10 seconds with ignition switch ON. (Voltage check is executed every one second)

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Control Module Voltage(Backup)

Is [ON] displayed?

2

3

2. CHECK DTC.
1.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

2.

Start the engine, and let it idle for 40 seconds or more.

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B2793 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.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

4

Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.

4. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Repair or replace the open circuit of harness.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B27A1 DRIVER SIDE EXTERNAL ANTENNA OPEN

DTC detecting condition:

When open circuit occurs in the harness between keyless access CM and driver’s side front door outer handle.

Trouble symptom:

The keyless access with push button start system does not operate.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK LAN SYSTEM.

Inspect 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 CONNECTOR.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front door outer handle connector.

3.

Check the connector.

Is the check result OK?

3

Repair or replace the connector.

3. CHECK POWER SUPPLY CIRCUIT.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and front door outside handle connector, and between keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 5 — (D66) No. 4:

(i241) No. 6 — (D66) No. 6:

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 5 — Chassis ground:

(i241) No. 6 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A1 displayed? (Current malfunction)

7

- 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.

7. CHECK FRONT DOOR OUTER HANDLE.
1.

Replace the driver’s side front door outer handle with the passenger’s front door outer handle.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A1 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Replace the driver’s side front door outer handle. SECURITY AND LOCKS>Door Outer Handle

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B27A2 PASSENGER SIDE EXTERNAL ANTENNA OPEN

DTC detecting condition:

When open circuit occurs in the harness between keyless access CM and passenger’s side front door outer handle.

Trouble symptom:

The keyless access with push button start system does not operate.

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 CONNECTOR.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front door outer handle connector.

3.

Check the connector.

Is the check result OK?

3

Repair or replace the connector.

3. CHECK POWER SUPPLY CIRCUIT.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and front door outside handle connector, and between keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 4 — (D56) No. 6:

(i241) No. 16 — (D56) No. 4:

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 4 — Chassis ground:

(i241) No. 16 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A2 displayed? (Current malfunction)

7

- 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.

7. CHECK FRONT DOOR OUTER HANDLE.
1.

Replace the passenger’s side front door outer handle with the driver’s front door outer handle. SECURITY AND LOCKS>Door Outer Handle

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A2 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Replace the passenger’s side front door outer handle. SECURITY AND LOCKS>Door Outer Handle

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B27A5 FRONT INTERNAL ANTENNA OPEN

DTC detecting condition:

When open circuit occurs in the harness between keyless access CM and front interior antenna.

Trouble symptom:

The keyless access with push button start system does not operate. (When the access key is in the front area of the passenger room)

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK LAN SYSTEM.

Inspect 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 CONNECTOR.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front interior antenna connector.

3.

Check the connector.

Is the check result OK?

3

Repair or replace the connector.

3. CHECK POWER SUPPLY CIRCUIT.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and front interior antenna connector, and between keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 25 — (i71) No. 1:

(i241) No. 12 — (i71) No. 3:

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 25 — Chassis ground:

(i241) No. 12 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A5 displayed?

7

- 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.

7. CHECK FRONT INTERIOR ANTENNA.
1.

Replace the rear interior antenna with the front interior antenna. SECURITY AND LOCKS>Keyless Access Indoor Antenna

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A5 displayed?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Malfunction occurred in the front interior antenna.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B27A6 REAR INTERNAL ANTENNA OPEN

DTC detecting condition:

When open circuit occurs in the harness between keyless access CM and center interior antenna.

Trouble symptom:

Keyless access system does not function. (When the access key is in the rear area of the passenger room (near the seat))

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 CONNECTOR.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the center interior antenna connector.

3.

Check the connector.

Is the check result OK?

3

Repair or replace the connector.

3. CHECK POWER SUPPLY CIRCUIT.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and center interior antenna connector, and between keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 9 — (R297) No. 1:

(i241) No. 3 — (R297) No. 3:

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 9 − Chassis ground:

(i241) No. 3 − Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A6 displayed? (Current malfunction)

7

- 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.

7. CHECK CENTER INTERIOR ANTENNA.
1.

Replace the center interior antenna with the front interior antenna. SECURITY AND LOCKS>Keyless Access Indoor Antenna

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A6 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Malfunction occurred in the center interior antenna.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B27A7 TRUNK/REAR GATE INTERNAL ANTENNA OPEN

DTC detecting condition:

When open circuit occurs in the harness between keyless access CM and rear interior antenna.

Trouble symptom:

The keyless access with push button start system does not operate. (When the access key is in the rear area of the passenger room (luggage compartment))

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK LAN SYSTEM.

Inspect 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 CONNECTOR.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the rear interior antenna connector.

3.

Check the connector.

Is the check result OK?

3

Repair or replace the connector.

3. CHECK POWER SUPPLY CIRCUIT.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and rear interior antenna connector, and between keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 2 — (R298) No. 1:

(i241) No. 1 — (R298) No. 3:

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 2 — Chassis ground:

(i241) No. 1 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A7 displayed? (Current malfunction)

7

- 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.

7. CHECK REAR INTERIOR ANTENNA.
1.

Replace the rear interior antenna with the front interior antenna. SECURITY AND LOCKS>Keyless Access Indoor Antenna

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A7 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Malfunction occurred in the rear interior antenna.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B27A8 TRUNK/REAR GATE EXTERNAL ANTENNA OPEN

DTC detecting condition:

When open circuit occurs in the harness between keyless access CM and rear exterior antenna.

Trouble symptom:

Keyless access system does not function.

(Unable to unlock with the rear gate opener button, or unable to lock with the rear lock button.)

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(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 CONNECTOR.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the rear exterior antenna connector.

3.

Check the connector.

Is the check result OK?

3

Repair or replace the connector.

3. CHECK POWER SUPPLY CIRCUIT.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

4

Check the power supply circuit.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and rear exterior antenna connector, and between keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 8 — (R492) No. 1:

(i241) No. 7 — (R492) No. 2:

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 8 — Chassis ground:

(i241) No. 7 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A8 displayed? (Current malfunction)

7

- 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.

7. CHECK KEYLESS ACCESS CM.
1.

Turn the ignition switch to OFF.

2.

Short between the antenna terminals of keyless access CM.

Connector & terminal

(i241) No. 7 — (i241) No. 8:

3.

Turn the ignition switch to ON.

4.

Using the Subaru Select Monitor, perform the clear memory of [Keyless Access with Push Button Start]. COMMON(diag)>Clear memory

5.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC B27A8 displayed? (Current malfunction)

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Malfunction occurred in the rear external antenna.

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0074 CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF

DTC detecting condition:

When bus off is detected 6 times in a row by CAN function complying with ISO 11898.

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds, with ignition switch ON.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0101 LOST COMMUNICATION WITH TCM

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds, with ignition switch ON.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds, with ignition switch ON.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds during CAN bus Wake-up.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"

DTC detecting condition:

When the following conditions are all established.

- Data no-receive DTC of monitored node is not in current malfunction.

- Fail detection counter of monitored node is not updated 32 times in a row. Or checksum error is detected 3 times in a row.

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE

DTC detecting condition:

When the following conditions are all established.

- Data no-receive DTC of monitored node is not in current malfunction.

- Fail detection counter of monitored node is not updated 32 times in a row. Or checksum error is detected 3 times in a row.

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds, with ignition switch ON.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U1140 LOST COMMUNICATION WITH BODY CONTROL MODULE BODY-CAN

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds during CAN bus Wake-up.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U1198 LOST COMMUNICATION WITH TELEMATICS SYSTEM

DTC detecting condition:

When reception ID frame is not normally and continuously received for 10 seconds during CAN bus Wake-up.

(Including when frame is abandoned by DLC (data length code) check error)

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U1422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE BODY-CAN

DTC detecting condition:

When the following conditions are all established.

- Data no-receive DTC of monitored node is not in current malfunction.

- Fail detection counter of monitored node is not updated 32 times in a row.

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

KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS) > Diagnostics with Phenomenon
LIST
1. IMMOBILIZER SYSTEM

Symptoms | Note
Engine does not start | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > ENGINE DOES NOT START
KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2784 ANTENNA CIRCUIT (PUSH ENGINE SWITCH)
KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B278A PUSH ENGINE SWITCH POWER SUPPLY CIRCUIT
KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2785 LIN COMMUNICATION
KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2789 ID CODE BOX COMMUNICATION
KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2790 ID CODE BOX CIRCUIT
Check the brake switch. BRAKE>Stop Light Switch>INSPECTION
Check the parking switch signal. CONTROL SYSTEMS>AT Shift Lock Solenoid and “P” Range Switch>INSPECTION
Check DTC of ECM. ENGINE (DIAGNOSTICS)(H4DO)>Diagnostic Trouble Code (DTC)
Cannot register the immobilizer. | Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER”.
Engine does not start with the remote engine starter. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2779 REMOTE CONTROL ENGINE STARTER COLLATION

2. KEYLESS ACCESS SYSTEM

Symptoms | Note
All doors cannot be locked/unlocked with keyless access. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > KEYLESS ACCESS LOCK/UNLOCK CANNOT BE PERFORMED FROM ANY OF THE DOORS
Cannot lock with keyless access from the driver’s door. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT LOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR
Cannot lock/unlock from the driver’s door with keyless access. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT LOCK/UNLOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR
Cannot unlock from the driver’s door with keyless access. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT UNLOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR
Cannot lock from the passenger’s door with keyless access. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT LOCK WITH KEYLESS ACCESS FROM THE PASSENGER’S DOOR
Cannot lock/unlock from the passenger’s door with keyless access. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT LOCK/UNLOCK WITH KEYLESS ACCESS FROM THE PASSENGER’S DOOR
Cannot unlock from the passenger’s door with keyless access. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT UNLOCK WITH KEYLESS ACCESS FROM THE PASSENGER’S DOOR
Keyless access passenger room buzzer does not sound. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > KEYLESS ACCESS PASSENGER ROOM BUZZER DOES NOT SOUND
Keyless access external buzzer does not beep. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > KEYLESS ACCESS EXTERNAL BUZZER DOES NOT BEEP
Interior collation does not function. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > INTERIOR COLLATION DOES NOT FUNCTION
Rear gate cannot be unlocked with the rear gate opener button. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > REAR GATE CANNOT BE UNLOCKED WITH THE REAR GATE OPENER BUTTON
Rear gate can not be locked when using the rear lock button. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > REAR GATE CAN NOT BE LOCKED WHEN USING THE REAR LOCK BUTTON
Rear gate cannot be locked with the power rear gate lock switch. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > REAR GATE CANNOT BE LOCKED WITH THE POWER REAR GATE LOCK BUTTON

3. STEERING LOCK SYSTEM

Symptoms | Note
The steering lock cannot be released (Cannot start the engine). | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > THE STEERING LOCK IS NOT RELEASED
The steering lock does not operate. | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > THE STEERING LOCK DOES NOT OPERATE

4. POWER SUPPLY SWITCHING SYSTEM

Symptoms | Note
Power will not turn ON (both accessory and ignition). | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER WILL NOT TURN ON (BOTH ACCESSORY AND IGNITION)
Power will not turn ON (accessory only). | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER WILL NOT TURN ON (ACCESSORY DOES NOT TURN ON, BUT IGNITION TURNS ON)
Power will not turn ON (ignition only). | KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > POWER WILL NOT TURN ON (ACCESSORY TURNS ON, BUT IGNITION DOES NOT TURN ON)

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

Trouble causes:

- Malfunction of exterior antenna, touch sensor, lock/unlock button

- Malfunction of access key, access key battery

- Malfunction of door lock control system

- Malfunction of keyless access CM power supply circuit

- Keyless access CM malfunction

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK OPERATION OF KEYLESS DOOR LOCK.
yes

Perform the instructed procedures.

no

2

2. CHECK ACCESS KEY.
no

4

yes
3. CHECK ACCESS KEY.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

4. CHECK DOOR LOCK.
no

Perform the instructed procedures.

yes
5. CHECK HARNESS.
no

Perform the instructed procedures.

yes
6. CHECK HARNESS (OPEN CIRCUIT).
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK OPERATION OF KEYLESS DOOR LOCK.

Using the keyless function of the access key, check the operation of the door lock.

Does it lock/unlock normally?

Check the exterior antenna, touch sensor, lock/unlock button.

2

2. CHECK ACCESS KEY.

Check for whether lock and unlock is possible with the registered access key.

Is there any access key which can lock/unlock when the touch sensor is operated?

Check the access key that does not operate. 3

4

3. CHECK ACCESS KEY.

Measure the battery voltage of the access key that does not operate.

Is the voltage 2.5 — 3.2 V?

Replace the access key.

Replace the battery.

4. CHECK DOOR LOCK.

Operate the driver’s center door lock switch.

Does the door lock operate?

5

Check the door lock control system. SECURITY AND LOCKS>Door Lock Control System>INSPECTION

5. CHECK HARNESS.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage 10 V or more when the ignition switch is turned to ON?

6

Check the keyless access CM power supply circuit.

6. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 20 — Chassis ground:

(i241) No. 17 — Chassis ground:

Is the resistance less than 10 Ω?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

Repair or replace the open circuit of harness.

2. CANNOT LOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR

Trouble causes:

- Malfunction of door lock control system

- Door lock switch circuit malfunction

- Malfunction of harness between keyless access CM and front door outer handle

- Keyless access CM malfunction

- Malfunction of front door outer handle

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DOOR LOCK SWITCH.
no

Perform the instructed procedures.

yes
2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
yes

Perform the instructed procedures.

no

4

4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
6. REPLACE FRONT DOOR OUTER HANDLE.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DOOR LOCK SWITCH.

Check that the lock/unlock operates with the driver’s door lock switch.

Does it lock/unlock normally?

2

Check the door lock circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > BASIC INSPECTION

2. CHECK DATA MONITOR.
1.

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

- Driver's seat lock status SW input

2.

Read the data when locking/unlocking the driver’s side lock actuator.

Does the data change from ON/OFF?

3

Check the door lock switch circuit.

3. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Driver's lock touch sensor SW

Does the data change from ON/OFF according to the sensor operation?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

4

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front outer handle connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.

Connector & terminal

(i241) No. 5 — (D66) No. 4:

(i241) No. 6 — (D66) No. 6:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 6 — Chassis ground:

(i241) No. 5 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. REPLACE FRONT DOOR OUTER HANDLE.

Replace the driver’s side front outer handle with the passenger’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Does it operate properly?

Replace the driver’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

3. CANNOT LOCK/UNLOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR

Trouble causes:

- Malfunction of door lock control system

- Malfunction of keyless access CM power supply circuit

- Malfunction of harness between keyless access CM and front door outer handle

- Keyless access CM malfunction

- Malfunction of front door outer handle

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DOOR LOCK SWITCH.
no

Perform the instructed procedures.

yes
2. CHECK FUSE.
no

Perform the instructed procedures.

yes
3. CHECK HARNESS.
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK KEYLESS ACCESS CM.
no

Perform the instructed procedures.

yes
6. REPLACE FRONT DOOR OUTER HANDLE.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DOOR LOCK SWITCH.

Check that the lock/unlock operates with the driver’s door lock switch.

Does it lock/unlock normally?

2

Check the door lock circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > BASIC INSPECTION

2. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

3

Replace the fuse.

3. CHECK HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front outer handle connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.

Connector & terminal

(i241) No. 5 — (D66) No. 4:

(i241) No. 6 — (D66) No. 6:

Is the resistance less than 1 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 6 — Chassis ground:

(i241) No. 5 — Chassis ground:

Is the resistance 10 kΩ or more?

5

Repair or replace the short circuit of the harness.

5. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Turn the ignition switch to OFF, close all doors and take the access key out of passenger room.

3.

Use the Subaru Select Monitor, measure the waveform between the keyless access CM connectors.

Connector & terminal

(D66) No. 4 — (D66) No. 6:

Does pulse output change from pulse output OFF → pulse output ON by the lock operation using access key?

6

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

6. REPLACE FRONT DOOR OUTER HANDLE.

Replace the driver’s side front outer handle with the passenger’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Does it operate properly?

Replace the driver’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

4. CANNOT UNLOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR

Trouble causes:

- Malfunction of door lock control system

- Door lock switch circuit malfunction

- Malfunction of harness between keyless access CM and front door outer handle

- Keyless access CM malfunction

- Malfunction of front door outer handle

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DOOR LOCK SWITCH.
no

Perform the instructed procedures.

yes
2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
yes

Perform the instructed procedures.

no

4

4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
6. REPLACE FRONT DOOR OUTER HANDLE.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DOOR LOCK SWITCH.

Check that the lock/unlock operates with the driver’s door lock switch.

Does it lock/unlock normally?

2

Check the door lock circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > BASIC INSPECTION

2. CHECK DATA MONITOR.
1.

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

- Driver's seat lock status SW input

2.

Read the data when locking/unlocking the driver’s side lock actuator.

Does the data change from ON/OFF?

3

Check the door lock switch circuit.

3. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Driver's unlock touch sensor switch

2.

Read the data when operating the touch sensor (unlock) of the door outer handle.

Does the data change from ON/OFF according to the sensor operation?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

4

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front outer handle connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.

Connector & terminal

(i241) No. 5 — (D66) No. 4:

(i241) No. 6 — (D66) No. 6:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 6 — Chassis ground:

(i241) No. 5 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. REPLACE FRONT DOOR OUTER HANDLE.

Replace the driver’s side front outer handle with the passenger’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Does it operate properly?

Replace the driver’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

5. CANNOT LOCK WITH KEYLESS ACCESS FROM THE PASSENGER’S DOOR

Trouble causes:

- Malfunction of door lock control system

- Door lock switch circuit malfunction

- Malfunction of harness between keyless access CM and front door outer handle

- Keyless access CM malfunction

- Malfunction of front door outer handle

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DOOR LOCK SWITCH.
no

Perform the instructed procedures.

yes
2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
yes

Perform the instructed procedures.

no

4

4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
6. REPLACE FRONT DOOR OUTER HANDLE.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DOOR LOCK SWITCH.

Check that the lock/unlock operates with the driver’s door lock switch.

Does it lock/unlock normally?

2

Check the door lock circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > BASIC INSPECTION

2. CHECK DATA MONITOR.
1.

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

- Passenger's seat lock status SW input

2.

Read the data when locking/unlocking the passenger’s side lock actuator.

Does the data change from ON/OFF?

3

Check the door lock switch circuit.

3. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Passenger's lock touch sensor SW

2.

Read the data when operating the touch sensor (lock) of the door outer handle.

Does the data change from ON/OFF according to the sensor operation?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

4

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front outer handle connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.

Connector & terminal

(i241) No. 4 — (D56) No. 6:

(i241) No. 16 — (D56) No. 4:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 4 — Chassis ground:

(i241) No. 16 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. REPLACE FRONT DOOR OUTER HANDLE.

Replace the passenger’s side front outer handle with the driver’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Does it operate properly?

Replace the passenger’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

6. CANNOT LOCK/UNLOCK WITH KEYLESS ACCESS FROM THE PASSENGER’S DOOR

Trouble causes:

- Malfunction of door lock control system

- Malfunction of keyless access CM power supply circuit

- Malfunction of harness between keyless access CM and front door outer handle

- Keyless access CM malfunction

- Malfunction of front door outer handle

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DOOR LOCK SWITCH.
no

Perform the instructed procedures.

yes
2. CHECK FUSE.
no

Perform the instructed procedures.

yes
3. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK KEYLESS ACCESS CM.
no

Perform the instructed procedures.

yes
6. REPLACE FRONT DOOR OUTER HANDLE.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DOOR LOCK SWITCH.

Check that the lock/unlock operates with the driver’s door lock switch.

Does it lock/unlock normally?

2

Check the door lock circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > BASIC INSPECTION

2. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

3

Replace the fuse.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front outer handle connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.

Connector & terminal

(i241) No. 4 — (D56) No. 6:

(i241) No. 16 — (D56) No. 4:

Is the resistance less than 1 Ω?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 4 — Chassis ground:

(i241) No. 16 — Chassis ground:

Is the resistance 10 kΩ or more?

5

Repair or replace the short circuit of the harness.

5. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Turn the ignition switch to OFF, close all doors and take the access key out of passenger room.

3.

Use the Subaru Select Monitor, measure the waveform between the keyless access CM connectors.

Connector & terminal

(D56) No. 4 — (D56) No. 6:

Does pulse output change from pulse output OFF → pulse output ON by the lock operation using access key?

6

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

6. REPLACE FRONT DOOR OUTER HANDLE.

Replace the passenger’s side front outer handle with the driver’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Does it operate properly?

Replace the passenger’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

7. CANNOT UNLOCK WITH KEYLESS ACCESS FROM THE PASSENGER’S DOOR

Trouble causes:

- Malfunction of door lock control system

- Door lock switch circuit malfunction

- Malfunction of harness between keyless access CM and front door outer handle

- Keyless access CM malfunction

- Malfunction of front door outer handle

- Check that there are no other registered access keys inside the vehicle.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DOOR LOCK SWITCH.
no

Perform the instructed procedures.

yes
2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
yes

Perform the instructed procedures.

no

4

4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
6. REPLACE FRONT DOOR OUTER HANDLE.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DOOR LOCK SWITCH.

Check that the lock/unlock operates with the driver’s door lock switch.

Does it lock/unlock normally?

2

Check the door lock circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > BASIC INSPECTION

2. CHECK DATA MONITOR.
1.

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

- Passenger's seat lock status SW input

2.

Read the data when locking/unlocking the passenger’s side lock actuator.

Does the data change from ON/OFF?

3

Check the door lock switch circuit.

3. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Passenger's unlock touch sensor switch

2.

Read the data when operating the touch sensor (unlock) of the door outer handle.

Does the data change from ON/OFF according to the sensor operation?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

4

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Disconnect the front outer handle connector.

3.

Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.

Connector & terminal

(i241) No. 4 — (D56) No. 6:

(i241) No. 16 — (D56) No. 4:

Is the resistance less than 1 Ω?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 4 — Chassis ground:

(i241) No. 16 — Chassis ground:

Is the resistance 10 kΩ or more?

6

Repair or replace the short circuit of the harness.

6. REPLACE FRONT DOOR OUTER HANDLE.

Replace the passenger’s side front outer handle with the driver’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Does it operate properly?

Replace the passenger’s side front outer handle. SECURITY AND LOCKS>Door Outer Handle

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

8. KEYLESS ACCESS PASSENGER ROOM BUZZER DOES NOT SOUND

Trouble causes:

- Combination meter malfunction

- Keyless access CM malfunction

Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK COMBINATION METER.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK COMBINATION METER.

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

Is the check result OK?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Replace the combination meter. INSTRUMENTATION/DRIVER INFO>Combination Meter>REMOVAL

9. KEYLESS ACCESS EXTERNAL BUZZER DOES NOT BEEP

Trouble causes:

- Improper body integrated unit setting

- Malfunction of harness between body integrated unit and keyless buzzer

- Keyless access CM malfunction

- Keyless buzzer malfunction

Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK BODY INTEGRATED UNIT SETTING.
no

Perform the instructed procedures.

yes
2. CHECK BUZZER OPERATION.
no

5

yes
3. CHECK KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM.
no

Perform the instructed procedures.

yes
4. CHECK KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

5. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
6. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
7. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
8. CHECK BODY INTEGRATED UNIT.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK BODY INTEGRATED UNIT SETTING.

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

- Answer-back Buzzer

Is the setting in the [Support]?

2

Change the setting to [Support].

2. CHECK BUZZER OPERATION.

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

- Keyless Buzzer Output

Does the buzzer sound?

3

5

3. CHECK KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM.
1.

Turn to IGN OFF.

2.

With all doors closed and the access key carried, touch the touch sensor (lock) on the driver’s door handle.

Does the door lock?

4

Refer to “CANNOT LOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR” and perform inspection. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION > CANNOT LOCK WITH KEYLESS ACCESS FROM THE DRIVER’S DOOR

4. CHECK KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM.
1.

Open the door glass.

2.

Place the access key on the driver’s seat, and close the door.

3.

Touch the touch sensor (lock) on the driver’s door handle.

Does the buzzer sound? (Lockout prevention alert)

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

5. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn to IGN OFF.

2.

Disconnect the connectors of the body integrated unit and keyless buzzer.

3.

Measure the resistance between body integrated unit connector and keyless buzzer connector.

Connector & terminal

(B490) No. 1 — (B281) No. 2:

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 keyless buzzer connector and chassis ground.

Connector & terminal

(B490) No. 1 — Chassis ground:

Is the resistance 10 kΩ or more?

7

Repair or replace the short circuit of the harness.

7. CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between keyless buzzer connector and chassis ground.

Connector & terminal

(B490) No. 2 — Chassis ground:

Is the resistance less than 10 Ω?

8

Repair or replace the open circuit of harness.

8. CHECK BODY INTEGRATED UNIT.
1.

Connect the connector of body integrated unit.

2.

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

- Keyless Buzzer Output

3.

Measure the voltage between body integrated unit connector and chassis ground using an oscilloscope.

Connector & terminal

(B281) No. 2 (+) — Chassis ground (−):

Is the frequency 2 kHz, voltage 9 V or more?

Replace the keyless buzzer.

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

10. INTERIOR COLLATION DOES NOT FUNCTION

Trouble causes:

- Access key battery malfunction

- Malfunction of keyless access CM power supply circuit

- Malfunction of harness between keyless access CM and each interior antenna

- Interior antenna malfunction

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK ACCESS KEY.
no

Perform the instructed procedures.

yes
2. CHECK POWER SUPPLY CIRCUIT.
no

Perform the instructed procedures.

yes
3. CHECK INTERIOR ANTENNA (FRONT).
no

Perform the instructed procedures.

yes
4. CHECK INTERIOR ANTENNA (CENTER).
no

Perform the instructed procedures.

yes
5. CHECK INTERIOR ANTENNA (REAR).
no

Perform the instructed procedures.

yes
6. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
7. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
8. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
9. CHECK ANTENNA.
yes

Perform the instructed procedures.

no

10

10. CHECK ANTENNA.
yes

Perform the instructed procedures.

no

11

11. CHECK ANTENNA.
yes

Perform the instructed procedures.

no

12

12. CHECK KEYLESS ACCESS SYSTEM CHECK.
no

Perform the instructed procedures.

yes
13. CHECK KEYLESS ACCESS SYSTEM CHECK.
no

Perform the instructed procedures.

yes
14. CHECK KEYLESS ACCESS SYSTEM CHECK.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK ACCESS KEY.

Check the battery of the access key. SECURITY AND LOCKS>Access Key>INSPECTION

Is the check result OK?

2

Replace the battery.

2. CHECK POWER SUPPLY CIRCUIT.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 4 (+) — Chassis ground (−):

(i75) No. 1 (+) — Chassis ground (−):

Is the voltage 9.5 — 16 V?

3

Check the power supply circuit.

3. CHECK INTERIOR ANTENNA (FRONT).
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- Fr internal transmitter - internal tuner

2.

Using a tester, check the output between keyless access CM connector terminals while performing [Keyless Access with Push Button Start].

Connector & terminal

(i241) No. 25 — (i241) No. 12:

Is a pulse output?

4

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

4. CHECK INTERIOR ANTENNA (CENTER).
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- Rr internal transmitter - internal tuner

2.

Using a tester, check the output between keyless access CM connector terminals while performing [Keyless Access with Push Button Start].

Connector & terminal

(i241) No. 9 — (i241) No. 3:

Is a pulse output?

5

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

5. CHECK INTERIOR ANTENNA (REAR).
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- R gate internal transmitter - internal tuner

2.

Using a tester, check the output between keyless access CM connector terminals while performing [Keyless Access with Push Button Start].

Connector & terminal

(i241) No. 2 — (i241) No. 1:

Is a pulse output?

6

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

6. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the front interior antenna connector and the keyless access CM connector.

2.

Using a tester, check continuity between the front interior antenna connector and the keyless access CM connector.

Connector & terminal

(i241) No. 25 — (i71) No. 1:

(i241) No. 12 — (i71) No. 3:

Is there continuity?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the center interior antenna connector and the keyless access CM connector.

2.

Using a tester, check continuity between the center interior antenna connector and the keyless access CM connector.

Connector & terminal

(i241) No. 9 — (R297) No. 1:

(i241) No. 3 — (R297) No. 3:

Is there continuity?

8

Repair or replace the open circuit of harness.

8. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the rear interior antenna connector and the keyless access CM connector.

2.

Using a tester, check continuity between the rear interior antenna connector and the keyless access CM connector.

Connector & terminal

(i241) No. 2 — (R298) No. 1:

(i241) No. 1 — (R298) No. 3:

Is there continuity?

9

Repair or replace the open circuit of harness.

9. CHECK ANTENNA.

Replace the front interior antenna with a new or properly functioning part.

Does it operate properly?

Replace the front interior antenna. SECURITY AND LOCKS>Keyless Access Indoor Antenna>REMOVAL

10

10. CHECK ANTENNA.

Replace the center interior antenna with a new or properly functioning part.

Does it operate properly?

Replace the center interior antenna. SECURITY AND LOCKS>Keyless Access Indoor Antenna>REMOVAL

11

11. CHECK ANTENNA.

Replace the rear interior antenna with a new or properly functioning part.

Does it operate properly?

Replace the rear interior antenna. SECURITY AND LOCKS>Keyless Access Indoor Antenna>REMOVAL

12

12. CHECK KEYLESS ACCESS SYSTEM CHECK.
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- Fr internal transmitter - internal tuner

2.

Hold the access key 1 m or more away from the center console, then come closer to within 0.8 m.

Does the buzzer sound?

13

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

13. CHECK KEYLESS ACCESS SYSTEM CHECK.
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- Rr internal transmitter - internal tuner

2.

Hold the access key 1 m or more away from the center of the second-row seats, then come closer to within 0.8 m.

Does the buzzer sound?

14

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

14. CHECK KEYLESS ACCESS SYSTEM CHECK.
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- R gate internal transmitter - internal tuner

2.

Hold the access key 1 m or more away from the back of the rear seat, then come closer to within 0.8 m.

Does the buzzer sound?

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

11. REAR GATE CANNOT BE UNLOCKED WITH THE REAR GATE OPENER BUTTON

Trouble causes:

- Malfunction of harness between the body integrated unit and rear gate lock actuator

- Body integrated unit malfunction

- Rear gate lock actuator malfunction

- Access key malfunction

- Malfunction of harness between body integrated unit and rear gate opener button

- Rear gate opener button malfunction

- Malfunction of harness between keyless access CM and exterior rear antenna

- Keyless access CM malfunction

- Exterior rear antenna malfunction

- Check that there are no other registered access keys inside the rear gate.

- Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.

- Check that the keyless access function is not stopped.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK KEYLESS OPERATION.
yes

6

no

2

2. CHECK REAR GATE UNLOCK OPERATION.
yes

6

no

3

3. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK REAR GATE LOCK ACTUATOR.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

6. CHECK ACCESS KEY.
no

Perform the instructed procedures.

yes
7. CHECK DATA MONITOR.
yes

14

no

8

8. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
9. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
10. CHECK REAR GATE OPENER BUTTON.
no

Perform the instructed procedures.

yes
11. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
12. CHECK OUTSIDE REAR ANTENNA.
yes

Perform the instructed procedures.

no

13

13. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
14. CHECK KEYLESS ACCESS SYSTEM CHECK.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK KEYLESS OPERATION.

Check that the rear gate unlocks when the rear gate/trunk SW of the access key is pressed.

Does it operate properly?

6

2

2. CHECK REAR GATE UNLOCK OPERATION.
1.

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

- R gate/trunk UNLK output

2.

Check that the rear gate unlocks when [R gate/trunk UNLK output] is output.

Does it operate properly?

6

3

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the body integrated unit connector and rear gate lock actuator connector.

2.

Check the continuity between body integrated unit connector and rear gate lock actuator connector.

Connector & terminal

(i266) No. 7 — (D46) No. 4:

Is there continuity?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Check the continuity between the rear gate lock actuator connector and chassis ground.

Connector & terminal

(D46) No. 3 — Chassis ground:

Is there continuity?

5

Repair or replace the open circuit of harness.

5. CHECK REAR GATE LOCK ACTUATOR.
1.

Check the rear gate lock actuator. SECURITY AND LOCKS>Rear Gate Latch and Actuator Assembly>INSPECTION

Is the check result OK?

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

Replace the rear gate latch and actuator assembly. SECURITY AND LOCKS>Rear Gate Latch and Actuator Assembly

6. CHECK ACCESS KEY.
1.

Prepare all access keys registered to the vehicle.

2.

Check that the rear gate lock can be unlocked with each access key.

Is the check result OK?

7

Replace the access key. SECURITY AND LOCKS>Access Key>REPLACEMENT

7. CHECK DATA MONITOR.
1.

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

- R Gate Release SW input

2.

Read the data when pressing the rear gate opener button.

Does the data display ON?

14

8

8. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the rear gate opener button connector and body integrated unit connector.

2.

Using a tester, check the continuity between the rear gate opener button connector and body integrated unit connector.

Connector & terminal

(D77) No. 1 — (i171) No. 6:

Is there continuity?

9

Repair or replace the open circuit of harness.

9. CHECK HARNESS (OPEN CIRCUIT).
1.

Using a tester, check the continuity between the rear gate opener button connector and chassis ground.

Connector & terminal

(D77) No. 2 — Chassis ground:

Is there continuity?

10

Repair or replace the open circuit of harness.

10. CHECK REAR GATE OPENER BUTTON.

Using a tester, check the continuity between rear gate opener button connector terminals.

Terminals

No. 1 — No. 2:

Is there continuity when pressing the switch?

11

Replace the rear gate opener button. SECURITY AND LOCKS>Rear Gate Opener Button

11. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the exterior rear antenna connector and the keyless access CM connector.

2.

Using a tester, check continuity between the exterior rear antenna connector and keyless access CM connector.

Connector & terminal

(R492) No. 1 — (i241) No. 8:

(R492) No. 2 — (i241) No. 7:

Is there continuity?

12

Repair or replace the open circuit of harness.

12. CHECK OUTSIDE REAR ANTENNA.

Replace the outside rear antenna with new or properly working parts.

Does it operate properly?

The outside rear antenna has a failure.

13

13. CHECK DATA MONITOR.
1.

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

- R gate lock status SW input

2.

Read the data when locking/unlocking the rear gate lock actuator.

Does the data change from ON ←→ OFF?

14

Check body integrated unit. SECURITY AND LOCKS>Body Integrated Unit>REMOVAL

14. CHECK KEYLESS ACCESS SYSTEM CHECK.
1.

Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Keyless Access with Push Button Start Check

- R gate external transmitter - internal tuner

2.

Hold the access key 1 m or more away from the rear gate opener button, then come closer to within 0.8 m.

Does the outside buzzer sound?

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

12. REAR GATE CAN NOT BE LOCKED WHEN USING THE REAR LOCK BUTTON

Trouble causes:

- Malfunction of harness between keyless access CM and rear lock button

- Rear lock button malfunction

- Malfunction of harness between keyless access CM and exterior rear antenna

- Keyless access CM malfunction

- Exterior rear antenna malfunction

- Malfunction of harness between the body integrated unit and rear gate lock actuator

- Body integrated unit malfunction

- Rear gate lock actuator malfunction

- Check that there are no other registered access keys inside the vehicle.

- Check that the keyless access function is not stopped.

- Inspect LAN system or keyless access with push button start system according to the basic diagnostic procedure, and make sure that DTC is not input.

- When the access key or keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK REAR GATE ACTUATOR.
no

10

yes
2. CHECK REAR LOCK BUTTON.
yes

8

no

3

3. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (GROUND SHORT CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
6. CHECK REAR LOCK BUTTON (UNIT INSPECTION).
no

Perform the instructed procedures.

yes
7. CHECK REAR LOCK BUTTON.
no

Perform the instructed procedures.

yes
8. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
9. CHECK OUTSIDE REAR ANTENNA.
yes

Perform the instructed procedures.

no

10

10. CHECK BODY INTEGRATED UNIT.
yes

Perform the instructed procedures.

no

11

11. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
12. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
13. CHECK REAR GATE LOCK ACTUATOR.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK REAR GATE ACTUATOR.

While carrying the access key, operate the touch sensor (lock) and touch sensor (unlock).

When the switch is operated, does the rear gate lock/unlock?

2

10

2. CHECK REAR LOCK BUTTON.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Rear Gate Request SW

Does the data change between ON/OFF?

8

3

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the rear lock button connector and the keyless access CM connector.

2.

Using a tester, measure the resistance between harness.

Connector & terminal

(D77) No. 3 — (i75) No. 17:

Is the resistance less than 10 Ω?

4

Repair or replace the open circuit of the harness.

4. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, measure the resistance between harness and chassis ground.

Connector & terminal

(D77) No. 3 — Chassis ground:

Is the resistance 10 MΩ or more?

5

Repair or replace the short of harness.

5. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, measure the resistance between harness and chassis ground.

Connector & terminal

(D77) No. 4 — Chassis ground:

Is the resistance less than 10 Ω?

6

Repair or replace the open circuit of the harness.

6. CHECK REAR LOCK BUTTON (UNIT INSPECTION).

Measure the resistance between the rear lock button (lock) terminals using the tester.

Terminals

No. 3 — No. 4:

Did the resistance change from 1 MΩ or more to less than 10 Ω?

7

Replace the rear lock button. SECURITY AND LOCKS>Rear Lock Button>REMOVAL

7. CHECK REAR LOCK BUTTON.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Rear Gate Request SW

2.

Read the data when operating the rear lock button.

Does the data change between ON/OFF?

8

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

8. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the exterior rear antenna connector and the keyless access CM connector.

2.

Using a tester, check continuity between the exterior rear antenna connector and keyless access CM connector.

Connector & terminal

(R492) No. 1 — (i241) No. 8:

(R492) No. 2 — (i241) No. 7:

Is there continuity?

9

Repair or replace the open circuit of harness.

9. CHECK OUTSIDE REAR ANTENNA.

Replace the outside rear antenna with new or properly working parts. SECURITY AND LOCKS>Keyless Access Outdoor Antenna>REMOVAL

Does it operate properly?

The outside rear antenna has a failure.

10

10. CHECK BODY INTEGRATED UNIT.
1.

Connect the disconnected connectors.

2.

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

- lock actuator LOCK output

3.

Actuate the door lock actuator LOCK output.

Does the rear gate lock actuator lock?

It is possible that temporary poor communication occurs.

11

11. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the body integrated unit connector and rear gate lock actuator connector.

2.

Check the continuity between body integrated unit connector and rear gate lock actuator connector.

Connector & terminal

(i266) No. 7 — (D46) No. 4:

Is there continuity?

12

Repair or replace the open circuit of harness.

12. CHECK HARNESS (OPEN CIRCUIT).
1.

Check the continuity between the rear gate lock actuator connector and chassis ground.

Connector & terminal

(D46) No. 3 — Chassis ground:

Is there continuity?

13

Repair or replace the open circuit of harness.

13. CHECK REAR GATE LOCK ACTUATOR.
1.

Check the rear gate lock actuator. SECURITY AND LOCKS>Rear Gate Latch and Actuator Assembly>INSPECTION

Is the check result OK?

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

Replace the rear gate latch and actuator assembly. SECURITY AND LOCKS>Rear Gate Latch and Actuator Assembly

13. REAR GATE CANNOT BE LOCKED WITH THE POWER REAR GATE LOCK BUTTON

Check the power rear gate lock button and the circuit. SECURITY AND LOCKS>Door Lock Control System>INSPECTION > CHECK POWER REAR GATE LOCK BUTTON

14. THE STEERING LOCK IS NOT RELEASED

Trouble causes:

- ECM failure

- Steering lock circuit malfunction

- Steering lock CM malfunction

- Keyless access CM malfunction

- For replacement procedure of keyless access CM or steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK OPERATION.
yes

Perform the instructed procedures.

no

2

2. CHECK DTC.
yes

Perform the instructed procedures.

no

3

3. CHECK DATA MONITOR.
no

7

yes
4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
6. CHECK STEERING LOCK CM.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

7. CHECK DATA MONITOR.
yes

9

no

8

8. CHECK ID CODE BOX.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

9. CHECK DATA MONITOR.
yes

Perform the instructed procedures.

no

10

10. CHECK STEERING LOCK CM.
yes

Perform the instructed procedures.

no

11

11. CHECK ID CODE BOX.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK OPERATION.
1.

Depress the brake pedal.

2.

While turning the steering wheel lightly to the left and right, press the push button ignition switch.

3.

Confirm that the steering lock is released and the engine starts.

Does the engine fail to start with the steering lock released?

Perform the diagnosis for engine system. ENGINE (DIAGNOSTICS)(H4DO)>Diagnostics with Phenomenon

2

2. CHECK DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Perform the diagnosis for the displayed DTCs.

3

3. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Steering lock unlock request reception status

  and

- Steering lock lock/unlock command reception history

2.

Read the data when the push button ignition switch is pressed while carrying the access key. (Maintain for 10 seconds after switch operation)

Does the data change from “Not yet received” to “Received”, and from “No” to “Yes”?

4

7

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the steering lock CM connector.

2.

Using a tester, measure the voltage between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 7 (+) — Chassis ground (−):

Is the voltage 10 V or more?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check continuity between the steering lock CM connector and chassis ground.

Connector & terminal

(i47) No. 1 — Chassis ground:

Is there continuity?

6

Repair or replace the open circuit of harness.

6. CHECK STEERING LOCK CM.
1.

Connect the disconnected connectors.

2.

Using a tester, measure the voltage between steering lock CM terminals right after the ignition switch is turned to ON.

Connector & terminal

(i47) No. 3 (+) — (i47) No. 1 (−):

Is the voltage 1 V or less right after the ignition ON?

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

Repair or replace the open circuit of harness.

7. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Code collation result between smart ECM and ID code box

Is data displayed as being normal?

9

8

8. CHECK ID CODE BOX.
1.

Replace with a properly functioning or new ID code box. SECURITY AND LOCKS>ID Code Box

2.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Code collation result between smart ECM and ID code box

Is data displayed as being normal?

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

9. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Code collation result between steering locked ECM and ID code box

Is data displayed as being normal?

- 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.

10

10. CHECK STEERING LOCK CM.
1.

Replace with a properly functioning or new steering lock CM. SECURITY AND LOCKS>Steering Lock CM

2.

After registering, the steering lock operates when the ignition is turned to OFF and the driver’s door is opened and closed.

3.

Turn the ignition to ON.

4.

Operate the steering and check for whether the steering lock is released.

Is the steering lock released, and does the engine start?

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

11

11. CHECK ID CODE BOX.
1.

Replace with a properly functioning or new ID code box. SECURITY AND LOCKS>ID Code Box>NOTE

2.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Code collation result between steering locked ECM and ID code box

Is data displayed as being normal?

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

15. THE STEERING LOCK DOES NOT OPERATE

Trouble causes:

- Door switch circuit malfunction

- P range switch circuit malfunction.

- Steering lock circuit malfunction

- Steering lock CM malfunction

- Keyless access CM malfunction

- For replacement procedure of keyless access CM or steering lock CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK DTC.
yes

Perform the instructed procedures.

no

2

2. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
3. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
4. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
5. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
6. CHECK DATA MONITOR.
no

Perform the instructed procedures.

yes
7. CHECK STEERING LOCK CM.
yes

Perform the instructed procedures.

no

8

8. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
9. CHECK HARNESS (OPEN CIRCUIT).
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK DTC.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Perform the diagnosis for the displayed DTCs.

2

2. CHECK DATA MONITOR.
1.

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

- Driver's door SW input

2.

Read the data when opening and closing the driver’s door.

Does the data change from ON to OFF according to the opening and closing?

3

Inspect door switch circuit.

3. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Shift P signal(AT only)

Is the status displayed correctly when the shift lever is shifted from P to other than P?

4

Check the P range switch and harness.

4. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Code collation result between smart ECM and ID code box

Is the status normal?

5

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

5. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Code collation result between steering locked ECM and ID code box

Is the status normal?

6

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

6. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Steering lock lock/unlock command reception history

2.

While in possession of the access key, perform engine start operations, and read data within 10 seconds after starting.

Is data displayed as Yes?

7

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

7. CHECK STEERING LOCK CM.

Using an oscilloscope, measure the waveform between steering lock CM terminals immediately after the following operations.

Perform ignition ON, driver’s side door close → shift lever “P” range, ignition OFF, and close → open the driver’s side door.

Connector & terminal

(i47) No. 3 — (i47) No. 1:

Is the waveform immediately after opening the driver’s side door abnormal?

Replace the steering lock CM. SECURITY AND LOCKS>Steering Lock CM

8

8. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector and the steering lock CM connector.

2.

Using a tester, check continuity between the keyless access CM connector and steering lock CM connector.

Connector & terminal

(i47) No. 3 — (i75) No. 10:

Is there continuity?

9

Repair or replace the open circuit of harness.

9. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is there continuity?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM>REMOVAL

Repair or replace the open circuit of harness.

16. POWER WILL NOT TURN ON (BOTH ACCESSORY AND IGNITION)

Trouble causes:

- Malfunction of keyless access CM power supply circuit

- Relay failure

- Push button ignition switch circuit malfunction

- When the keyless access CM is replaced with a new unit, and the ground terminal is installed to the battery sensor, the status will become ignition ON. Also, if the battery is disconnected/connected, it will return to a condition when the battery is disconnected.

- When the keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK FUSE.
no

Perform the instructed procedures.

yes
2. CHECK POWER SUPPLY.
no

Perform the instructed procedures.

yes
3. CHECK CONNECTOR.
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
6. CHECK DTC.
yes

Perform the instructed procedures.

no

7

7. CHECK DATA MONITOR.
no

13

yes
8. CHECK RELAY (PUSH BUTTON START).
no

Perform the instructed procedures.

yes
9. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
10. CHECK HARNESS (GROUND SHORT CIRCUIT).
yes

Perform the instructed procedures.

no

11

11. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
12. CHECK KEYLESS ACCESS CM.
no

Perform the instructed procedures.

yes
13. CHECK PUSH BUTTON IGNITION SWITCH UNIT.
no

Perform the instructed procedures.

yes
14. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
15. CHECK WIRING HARNESS.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

2

Replace the fuse.

2. CHECK POWER SUPPLY.
1.

Remove IG relay 1 (push button start), IG relay 2 (push button start) and accessory relay (push button start).

2.

Using a tester, measure the voltage between the relay block connector and chassis ground.

Is the voltage 10 V or more?

3

Check the DC power supply circuit.

3. CHECK CONNECTOR.

Check the engagement of each connector and terminal for any deformation or looseness.

Is the check result OK?

4

Repair the connector, or replace harness.

4. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage between 8 V and 16 V?

5

Repair or replace the open circuit of harness.

5. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i241) No. 17 — Chassis ground:

(i75) No. 20 — Chassis ground:

Is there continuity?

6

Repair or replace the open circuit of harness.

6. CHECK DTC.
1.

Connect the keyless access CM connector.

2.

While in possession of the access key, depress the brake pedal, and push the push button ignition switch.

3.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Perform the diagnosis for the displayed DTCs.

7

7. CHECK DATA MONITOR.
1.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Push start SW 1

- Push start SW 2

2.

Read the data when pressing the push button ignition switch.

Does it change from OFF to ON along with the operation?

8

13

8. CHECK RELAY (PUSH BUTTON START).

Check IG relay 1 and 2 (push button start), and accessory relay (push button start). SECURITY AND LOCKS>Relay and Fuse

Is each check result OK?

9

Replace the faulty relay.

9. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector and F/B connector.

2.

Using a tester, check continuity between keyless access CM connector and F/B connector.

Connector & terminal

(i75) No. 28 — (i265) No. 4:

(i75) No. 27 — (i137) No. 12:

(i75) No. 16 — (i137) No. 2:

Is there continuity?

10

Repair or replace the open circuit of harness.

10. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 28 — Chassis ground:

(i75) No. 27 — Chassis ground:

(i75) No. 16 — Chassis ground:

Is there continuity?

Repair or replace the short circuit of the harness.

11

11. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check the continuity between F/B connector and chassis ground.

Connector & terminal

(i136) No. 6 — Chassis ground:

Is there continuity?

12

Repair or replace the open circuit of harness.

12. CHECK KEYLESS ACCESS CM.
1.

Connect all the disconnected connectors.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground when the ignition is turned from OFF to ON.

Connector & terminal

(i75) No. 28 (+) — Chassis ground (−):

(i75) No. 27 (+) — Chassis ground (−):

(i75) No. 16 (+) — Chassis ground (−):

Did the voltage change from 1 V or less to +B-2 V or more?

13

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

13. CHECK PUSH BUTTON IGNITION SWITCH UNIT.
1.

Disconnect the push button ignition switch connector.

2.

Using a tester, check the continuity between the push button ignition switch connector terminals.

Terminals

No. 7 — No. 5:

No. 2 — No. 5:

Did it change to continuity exists, when the button was pressed? (No continuity when button is released)

14

Replace the push button ignition switch. SECURITY AND LOCKS>Push Button Ignition Switch>REMOVAL

14. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check the continuity between the push button ignition switch connector and chassis ground.

Connector & terminal

(i150) No. 5 — Chassis ground:

Is there continuity?

15

Repair or replace the open circuit of harness.

15. CHECK WIRING HARNESS.
1.

Disconnect the keyless access CM connector.

2.

Using a tester, check continuity between the keyless access CM connector and push button ignition switch.

Connector & terminal

(i150) No. 7 — (i75) No. 8:

(i150) No. 2 — (i75) No. 9:

Is there continuity?

- 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.

Repair or replace the open circuit of harness.

17. POWER WILL NOT TURN ON (ACCESSORY DOES NOT TURN ON, BUT IGNITION TURNS ON)

Trouble causes:

- Malfunction of keyless access CM power supply circuit

- Relay failure

- Push button ignition switch circuit malfunction

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- When the keyless access CM is replaced with a new unit, and the ground terminal is installed to the battery sensor, the status will become ignition ON. Also, if the battery is disconnected/connected, it will return to a condition when the battery is disconnected.

- When the keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK FUSE.
no

Perform the instructed procedures.

yes
2. CHECK CONNECTOR.
no

Perform the instructed procedures.

yes
3. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK ACCESSORY RELAY (PUSH BUTTON START) (UNIT INSPECTION).
no

Perform the instructed procedures.

yes
6. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

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

Perform the instructed procedures.

no

8

8. CHECK KEYLESS ACCESS CM.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

2

Replace the fuse.

2. CHECK CONNECTOR.

Check the engagement of each connector and terminal for any deformation or looseness.

Is the check result OK?

3

Repair the connector, or replace harness.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage between 8 V and 16 V?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 20 — Chassis ground:

(i241) No. 17 — Chassis ground:

Is there continuity?

5

Repair or replace the open circuit of harness.

5. CHECK ACCESSORY RELAY (PUSH BUTTON START) (UNIT INSPECTION).

Check the accessory relay (push button start). SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

6

Replace the relay.

6. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector and F/B connector.

2.

Using a tester, check continuity between keyless access CM connector and F/B connector.

Connector & terminal

(i75) No. 16 — (i137) No. 2:

Is there continuity?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 16 — Chassis ground:

Is there continuity?

Repair or replace the short circuit of the harness.

8

8. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground when the ignition is turned from OFF to ON.

Connector & terminal

(i75) No. 16 (+) — Chassis ground (−):

Did the voltage change from 1 V or less → +B-2 V or more?

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

18. POWER WILL NOT TURN ON (ACCESSORY TURNS ON, BUT IGNITION DOES NOT TURN ON)

Trouble causes:

- Malfunction of keyless access CM power supply circuit

- Relay failure

- Push button ignition switch circuit malfunction

Wiring diagram:

Keyless access with push button start system WIRING SYSTEM>Keyless Access With Push Button Start System>WIRING DIAGRAM

- When the keyless access CM is replaced with a new unit, and the ground terminal is installed to the battery sensor, the status will become ignition ON. Also, if the battery is disconnected/connected, it will return to a condition when the battery is disconnected.

- When the keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. CHECK FUSE.
no

Perform the instructed procedures.

yes
2. CHECK CONNECTOR.
no

Perform the instructed procedures.

yes
3. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
4. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

yes
5. CHECK IG Relay 1 AND 2 (PUSH BUTTON START) (UNIT INSPECTION).
no

Perform the instructed procedures.

yes
6. CHECK HARNESS (OPEN CIRCUIT).
no

Perform the instructed procedures.

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

Perform the instructed procedures.

no

8

8. CHECK KEYLESS ACCESS CM.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. CHECK FUSE.

Check the fuse. SECURITY AND LOCKS>Relay and Fuse>INSPECTION

Is the check result OK?

2

Replace the fuse.

2. CHECK CONNECTOR.

Check the engagement of each connector and terminal for any deformation or looseness.

Is the check result OK?

3

Repair the connector, or replace harness.

3. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 1 (+) — Chassis ground (−):

(i75) No. 4 (+) — Chassis ground (−):

Is the voltage between 8 V and 16 V?

4

Repair or replace the open circuit of harness.

4. CHECK HARNESS (OPEN CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 20 — Chassis ground:

(i241) No. 17 — Chassis ground:

Is there continuity?

5

Repair or replace the open circuit of harness.

5. CHECK IG Relay 1 AND 2 (PUSH BUTTON START) (UNIT INSPECTION).

Check IG relay 1 (push button start) and IG relay 2 (push button start). SECURITY AND LOCKS>Relay and Fuse

Is the check result OK?

6

Replace the relay.

6. CHECK HARNESS (OPEN CIRCUIT).
1.

Disconnect the keyless access CM connector and F/B connector.

2.

Using a tester, check continuity between keyless access CM connector and F/B connector.

Connector & terminal

(i75) No. 28 — (i265) No. 4:

(i75) No. 27 — (i137) No. 12:

Is there continuity?

7

Repair or replace the open circuit of harness.

7. CHECK HARNESS (GROUND SHORT CIRCUIT).

Using a tester, check continuity between the keyless access CM connector and chassis ground.

Connector & terminal

(i75) No. 28 — Chassis ground:

(i75) No. 27 — Chassis ground:

Is there continuity?

Repair or replace the short circuit of the harness.

8

8. CHECK KEYLESS ACCESS CM.
1.

Connect the keyless access CM connector.

2.

Using a tester, measure the voltage between the keyless access CM connector and chassis ground when the ignition is turned from OFF to ON.

Connector & terminal

(i75) No. 28 (+) — Chassis ground (−):

(i75) No. 27 (+) — Chassis ground (−):

Did the voltage change from 1 V or less → +B-2 V or more?

- 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 the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

19. ENGINE DOES NOT START

Trouble causes:

- Engine system failure

- Keyless access CM malfunction.

- Keyless access with push button start system power supply malfunction

- Steering lock system malfunction

- P range switch circuit malfunction

- Stop light switch circuit malfunction

- Inhibitor switch circuit malfunction

- Clutch switch circuit malfunction

- When the keyless access CM is replaced with a new unit, and the ground terminal is installed to the battery sensor, the status will become ignition ON. Also, if the battery is disconnected/connected, it will return to a condition when the battery is disconnected.

- When the keyless access CM is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

- Before performing diagnosis, refer to “CAUTION” in “General Description”. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>General Description>CAUTION

1. INITIALIZE STEERING LOCK.
yes

Perform the instructed procedures.

no

2

2. CHECK DTC.
yes

Perform the instructed procedures.

no

3

3. CHECK POWER SUPPLY SWITCHING.
no

Perform the instructed procedures.

yes
4. CHECK DATA MONITOR.
yes

10

no

5

5. CHECK DATA MONITOR.
no

11

yes
6. CHECK DATA MONITOR.
no

13

yes
7. CHECK DATA MONITOR.
no

15

yes
8. CHECK STEERING LOCK.
no

Perform the instructed procedures.

yes
9. CHECK KEYLESS ACCESS CM.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

10. CHECK DATA MONITOR.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

11. CHECK P RANGE SWITCH ONLY.
no

Perform the instructed procedures.

yes
12. CHECK HARNESS (OPEN CIRCUIT).
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

13. CHECK STOP LIGHT SWITCH.
no

Perform the instructed procedures.

yes
14. CHECK HARNESS (OPEN CIRCUIT).
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

15. CHECK INHIBITOR SWITCH.
yes

Perform the instructed procedures.

no

Perform the instructed procedures.

1. INITIALIZE STEERING LOCK.
1.

Place the shift lever in the Parking range.

2.

Operate the driver’s door switch ON/OFF with the ignition switch OFF.

3.

Wait for 10 seconds.

4.

Place the access key on the driver’s seat.

5.

Press the push button ignition switch while depressing the brake pedal.

Can the engine start?

- 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.

Read the DTC of [Keyless Access with Push Button Start] using the Subaru Select Monitor. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Are any DTCs displayed? (Current malfunction)

Perform the diagnosis according to the DTC. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST

3

3. CHECK POWER SUPPLY SWITCHING.
1.

Place the access key on the driver’s seat.

2.

Press the push button ignition switch without depressing the brake pedal.

When the switch is operated, does it change as <IG-OFF> → <ACC-ON> → <IG-ON> → <IG-OFF>?

4

Perform the diagnostics according to the symptom for power supply switching system in General Diagnostic Table.

4. CHECK DATA MONITOR.
1.

Place the access key on the driver’s seat.

2.

Press the push button ignition switch while depressing the brake pedal.

3.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- STSW signal monitor

If it is difficult to confirm, press the push button ignition switch for approximately five seconds longer.

Does the data change from OFF → ON?

10

5

5. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Shift P signal(AT only)

Is ON displayed in parking position, and OFF displayed in other positions?

6

11

6. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Stop Light Switch

Is ON displayed when brake pedal depressed, and OFF displayed when brake pedal not depressed?

7

13

7. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Shift N signal(AT only)

Is ON displayed in parking and neutral positions, and OFF displayed in other positions?

8

15

8. CHECK STEERING LOCK.

Operate the push button ignition switch to perform the power supply switching and check steering lock condition during ACC-ON condition.

Is the steering lock in unlocked condition?

9

Perform the diagnostics according to the symptom for steering lock system in General Diagnostic Table.

9. CHECK KEYLESS ACCESS CM.
1.

Turn the ignition switch to OFF.

2.

Disconnect the ECM connector.

3.

Using a tester, measure the voltage between the ECM connector and chassis ground in the following procedures.

1. Press the push button ignition switch with the brake pedal depressed. (Measure within 10 seconds.)

2. Release the push button ignition switch from the condition of step 1. above.

Connector & terminal

(i241) No. 15 (+) — Chassis ground (−):

Does the value change from 1 V or less to +B-2 V or more in the step 1, and return to 1 V or less in the step 2?

Perform the diagnosis for engine system. ENGINE (DIAGNOSTICS)(H4DO)>Diagnostics with Phenomenon

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

10. CHECK DATA MONITOR.
1.

Connect the disconnected connectors.

2.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start]. KEYLESS ACCESS WITH PUSH BUTTON START(DIAGNOSTICS)>Data Monitor

- Engine start permission request reception status

Is “Reception” displayed with ignition switch ON, and “Not yet received” displayed in other positions?

Perform the diagnosis for engine system.

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

11. CHECK P RANGE SWITCH ONLY.
1.

Turn the ignition switch to OFF.

2.

Disconnect the AT shift lever connector.

3.

Using a tester, check the continuity of “P” range switch.

Connector & terminal

No. 1 — No. 2:

Does it change from Continuity ←→ No continuity according to shift lever operation?

12

Replace the “P” range switch. CONTROL SYSTEMS>AT Shift Lock Solenoid and “P” Range Switch>REMOVAL

12. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Disconnect the keyless access CM connector.

3.

Using a tester, check continuity between the keyless access CM connector and the AT select lever connector, and between the AT select lever connector and chassis ground.

Connector & terminal

(i44) No. 1 — (i241) No. 18:

(i44) No. 2 — Chassis ground:

Is there continuity?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Repair or replace the open circuit of harness.

13. CHECK STOP LIGHT SWITCH.
1.

Turn the ignition switch to OFF.

2.

Disconnect the stop light switch connector.

3.

Using a tester, check continuity of the stop light switch connector.

Connector & terminal

No. 1 — No. 2:

Does it change from Continuity ←→ No continuity according to brake pedal operation?

14

Replace the stop light switch. BRAKE>Stop Light Switch>REMOVAL

14. CHECK HARNESS (OPEN CIRCUIT).
1.

Turn the ignition switch to OFF.

2.

Using a tester, check continuity between the keyless access CM connector and the stop light switch connector, and between the stop light switch connector and fuse.

Connector & terminal

(i241) No. 27 — (B65) No. 2:

(B65) No. 1 — F/B fuse No. 37:

Is there continuity?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Repair or replace the open circuit of harness.

15. CHECK INHIBITOR SWITCH.

Check the inhibitor switch.

Is the inhibitor switch working normal?

Replace the keyless access CM. SECURITY AND LOCKS>Keyless Access CM

Replace the inhibitor switch. CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Inhibitor Switch