Diagnosis Procedure

PASSENGER SELECT UNLOCK RELAY


Description

Controls the operation of both rear door lock actuators.




PASSENGER SELECT UNLOCK RELAY


Diagnosis Procedure

Regarding Wiring Diagram information, Power Door Lock System.
1.CHECK PASSENGER SELECT UNLOCK RELAY CIRCUIT

NOTE:
Passenger select unlock relay must remain connected during this step.
1. Turn ignition switch OFF.
2. Disconnect BCM and inoperative rear door lock actuator.





3. Check continuity between BCM connector (A) M20 terminal 66 and rear door lock actuator LH connector (B) D205 terminal 2 or rear door lock actuator RH connector (C) D305 Terminal 2.

66 - 2 : Continuity should exist.

4. Check continuity between BCM connector M20 terminal 66 and body ground.

66 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - GO TO 4
NO - GO TO 2
2.CHECK PASSENGER SELECT UNLOCK RELAY INPUT
1. Disconnect passenger select unlock relay.





2. Check continuity between BCM connector (A) M20 terminal 66 and passenger select unlock relay connector (B) M7 terminal 3.

66 - 3 : Continuity should exist.

3. Check continuity between BCM connector (A) M20 terminal 66 and body ground.

66 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness between BCM and relay.
3.CHECK PASSENGER SELECT UNLOCK RELAY OUTPUT





1. Check continuity between passenger select unlock relay connector (A) M7 terminal 4 and rear door lock actuator LH connector (B) D205 terminal 2 or rear door lock actuator RH connector
(C) D305 terminal 2.

4 - 2 : Continuity should exist.

2. Check continuity between passenger select unlock relay connector (A) M7 terminal 4 and ground.

4 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - Replace passenger select unlock relay.
NO - Repair or replace harness between relay and actuator.
4.CHECK REAR DOOR LOCK ACTUATOR ASSEMBLY
1. Reconnect BCM.





2. Check voltage between rear door lock actuator connector LH (A)
D205 terminals 2 and 3 or rear door lock actuator connector RH
(B) D305 terminals 2 and 3.










3. Check voltage between rear door lock actuator connector LH (A)
D205 or rear door lock actuator connector RH (B) D305 terminals 2 and 3.





Is the inspection result normal?
YES - Replace rear door lock actuator.
NO - Repair or replace harness between actuator and splice.