Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
- Turn ignition switch OFF.
- Disconnect front door lock assembly LH connector.
- Check voltage between front door lock assembly LH harness connector and ground.
(+) (-) Voltage
(Approx.)Front door lock assembly LH Connector Terminal D14 5 Ground 5 V 6
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
GO TO STEP 2 .
- CHECK DOOR KEY CYLINDER SWITCH SIGNAL CIRCUIT
- Disconnect main power window and door lock/unlock switch connector.
- Check continuity between main power window and door lock/unlock switch harness connector and front door lock assembly LH harness connector.
Main power window and door lock/unlock switch Front door lock assembly LH Continuity Connector Terminal Connector Terminal D56 15 D14 6 Yes 16 5 - Check continuity between power window main switch harness connector and ground.
Main power window and door lock/unlock switch Ground Continuity Connector Terminal D56 15 No 16
Is the inspection result normal?
YES
Replace main power window and door lock/unlock switch. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness.
- CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly LH harness connector and ground.
Front door lock assembly LH Ground Continuity Connector Terminal D14 4 Yes Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair or replace harness.
- CHECK DOOR KEY CYLINDER SWITCH
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Replace front door lock assembly LH. Refer to REMOVAL AND INSTALLATION .
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.