Contents Wiring diagrams Section: Door Locks & Anti-Theft Systems All sections

Security and Locks (Except Sti): Overview Subaru Impreza GH

Scheme 54

Scheme 54: DOOR LOCK ASSEMBLY

Tightening torque: N.m (kgf-m, ft-lb)

T1: 6.5 (0.66, 4.8)

T2: 7.5 (0.76, 5.5)

T3: 18 (1.8, 13.3)

Scheme 55

Scheme 55: REAR GATE LOCK AND TRUNK LID

Tightening torque: N.m (kgf-m, ft-lb)

T1: 7.5 (0.76, 5.5)

T2: 25 (2.5, 18.4)

Scheme 56

Scheme 56: FRONT HOOD LOCK AND REMOTE OPENERS

Tightening torque: N.m (kgf-m, ft-lb)

T: 33 (3.36, 24.2)

Scheme 57

Scheme 57: KEYLESS ENTRY SYSTEM

Scheme 58

Scheme 58: SECURITY SYSTEM

CHECK ROOM LIGHT OPERATION

StepCheckYesNo
1 CHECK ROOM LIGHT OPERATION . Make sure the room light illuminates when the room light switch is ON, and goes off when the switch is OFF.Does the room light illuminate or go off?Go to step 2 .Check the harness between the fuse and main fuse box and room light.
2 CHECK ROOM LIGHT OPERATION . Turn the room light switch to the "DOOR" position. Open/close any door (other than trunk).Does the room light illuminate <=> go off (including off delay) when the door is opened and closed?Go to step 3 .Go to step 4 .
3 CHECK KEYLESS ENTRY OPERATION . Press the LOCK/UNLOCK button of the keyless transmitter.Does it operate properly?Replace the body integrated unit. Refer to BODY INTEGRATED UNIT .Check the bulb or room light assembly, and replace if necessary.
4 CHECK HARNESS . Disconnect the body integrated unit harness connector and room light harness connector. Measure the resistance between harness connector terminals. Connector & terminal (B279) No. 5 - (R52) No. 2Is the resistance less than 10 ohms?Go to step 5 .Repair or replace the harness.
5 CHECK HARNESS . Measure the voltage between room light harness connector terminal and chassis ground. Connector & terminal (R52) No. 3 (+) - Chassis ground (-)Is the voltage 10 V or more?Replace the body integrated unit. Refer to BODY INTEGRATED UNIT .Repair or replace the harness.

DIAGNOSTIC PROCEDURE

CHECK HAZARD LIGHT OPERATION

StepCheckYesNo
1 CHECK HAZARD LIGHT OPERATION . Make sure the hazard light blinks when hazard switch is turned to ON.Does the hazard light blink?Go to step 2 .Check the hazard light circuit.
2 CHECK OUTPUT TO HAZARD LIGHT . Turn the ignition switch to OFF. Disconnect the key warning switch harness connector. Prepare the Subaru Select Monitor kit. Turn the ignition switch to ON (engine OFF) and run the "PC application for Subaru Select Monitor". On «System Selection Menu» display, select {Integ. unit mode}. Select {ECM customizing}. Check {Hazard answer-back setup}, and then switch to ON setting if necessary. Select the {Current Data Display&Save}. Remove the key from ignition switch. Select the {Hazard Output}.Is output signal present when operating the transmitter LOCK/UNLOCK button?Go to step 3 .Check body integrated unit. Refer to BASIC DIAGNOSTIC PROCEDURE .
3 CHECK CIRCUIT OF HAZARD LIGHT . Disconnect the harness connector of body integrated unit. Disconnect the turn signal and hazard unit harness connector. Measure the resistance between harness connector terminals. Connector & terminal (B281) No. 22 - (B32) No. 8Is the resistance less than 10 ohms?Check body integrated unit. Refer to BASIC DIAGNOSTIC PROCEDURE .Repair or replace the harness.

DIAGNOSTIC PROCEDURE

For operation procedure, refer to the hazard light inspection of the keyless entry system. Refer to CHECK KEYLESS BUZZER , INSPECTION, Keyless Entry System.