Circuit Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY

Turn ignition switch ON.

Check voltage between power window and door lock/unlock switch RH connector D105 terminal 8 and ground.

Power window and door lock/unlock switch RH

Ground

Voltage

(approx.)

Connector

Terminal

D105

Battery voltage

Is the inspection result normal?

YES

GO TO 3

GO TO 2

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect BCM connector M20, main power window and door lock/unlock switch connector and power window and door lock/unlock switch RH connector.

Check continuity between BCM connector M20 terminal 68 and power window and door lock/unlock switch RH connector D105 terminal 8.

BCM		Power window and door lock/unlock switch RH		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M20	68	D105	8	Yes

Check continuity between BCM connector M20 terminal 68 and ground.

BCM		Ground	Continuity
Connector	Terminal
M20	68	-	No

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness.

CHECK GROUND CIRCUITS

Turn ignition switch OFF.
Disconnect main power window and door lock/unlock switch and power window and door lock/unlock switch RH connectors.

Check continuity between main power window and door lock/unlock switch connector D7 terminals 14, 15 and power window and door lock/unlock switch RH connector D105 terminals 12, 11.

Main power window and door lock/unlock switch		Power window and door lock/unlock switch RH		Continuity
Connector	Terminal	Connector	Terminal
D7	14	D105	12	Yes
	15		11

Check continuity between main power window and door lock/unlock switch connector D7 terminals 14, 15 and ground.

Main power window and door lock/unlock switch		Ground	Continuity
Connector	Terminal
D7	14	-	No
	15

Is the inspection result normal?

YES

GO TO 4

Repair or replace harness.

CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
Perform the main power window and door lock/unlock switch component inspection. Refer to Component Inspection .

Is the inspection result normal?

YES

Inspection End.

NO

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