Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

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
D10	5	Ground	5 V
	6

Is the inspection result normal?

YES

GO TO 3 .

GO TO 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
D7	3	D10	6	Yes
	15		5

Check continuity between main power window and door lock/unlock switch harness connector and ground.

Main power window and door lock/unlock switch		Ground	Continuity
Connector	Terminal
D7	3		No
	15

Is the inspection result normal?

YES

Replace main power window and door lock/unlock switch. Refer to Removal and Installation .

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
D10	4		Yes

Is the inspection result normal?

YES

GO TO 4 .

Repair or replace harness.

CHECK DOOR KEY CYLINDER SWITCH
Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 5 .

NO

Replace front door lock assembly LH. Refer to Removal and Installation .
CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .

Inspection End.