Diagnosis Procedure

DOOR LOCK ACTUATOR

REAR LH : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

1. CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect rear door lock actuator LH connector.
3.Check voltage between rear door lock actuator LH harness connector and ground.





Is the inspection result normal?
YES- Replace rear door lock actuator LH. Refer to "DOOR LOCK : Removal and Installation" Door Lock.
NO- GO TO 2.
Revision: March 20122013 Infiniti JX

2. CHECK DOOR LOCK ACTUATOR CIRCUIT

1.Disconnect BCM, all door lock actuators and fuel lid door lock actuator connector.
2.Check continuity between BCM harness connector and rear door lock actuator LH harness connector.





3.Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK BCM OUTPUT SIGNAL

1.Connect BCM connector.
2.Check voltage between BCM harness connector and ground.





Is the inspection result normal?
YES- Check for internal short of each door lock actuator.
NO- Replace BCM. Refer to "Removal and Installation" Service and Repair.