DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENCODER OPERATION

Turn ignition switch ON.

Check signal between main power window and door lock/unlock switch connector D7 terminal 3 and ground with oscilloscope.

Main power window and door lock/unlock switch

Ground

Signal

(Reference value)

Connector

Terminal

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

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

GO TO 2

CHECK ENCODER SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect main power window and door lock/unlock switch and front power window motor LH connectors.

Check continuity between main power window and door lock/unlock switch connector D7 terminal 3 and front power window motor LH connector D9 terminal 5.

Main power window and door lock/unlock switch		Front power window motor LH		Continuity
Connector	Terminal	Connector	Terminal	Continuity
D7	3	D9	5	Yes

Check continuity between main power window and door lock/unlock switch connector D7 terminal 3 and ground.

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

Is the inspection result normal?

YES

GO TO 3

Repair or replace harness.

CHECK ENCODER POWER

Connect main power window and door lock/unlock switch connector.
Turn ignition switch ON.

Check voltage between front power window motor LH connector D9 terminal 2 and ground.

Front power window motor LH

Ground

Voltage

(approx.)

Connector

Terminal

10V

Is the inspection result normal?

YES

GO TO 5

GO TO 4

CHECK ENCODER POWER CIRCUIT

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

Check continuity between main power window and door lock/unlock switch connector D7 terminal 4 and front power window motor LH connector D9 terminal 2.

Main power window and door lock/unlock switch		Front power window motor LH		Continuity
Connector	Terminal	Connector	Terminal	Continuity
D7	4	D9	2	Yes

Check continuity between main power window and door lock/unlock switch connector D7 terminal 4 and ground.

Main power window and door lock/unlock switch		Ground	Continuity
Connector	Terminal
D7	4	--	No

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 ENCODER GROUND

Turn ignition switch OFF.

Check continuity between front power window motor LH connector D9 terminal 4 and ground.

Front power window motor LH		Ground	Continuity
Connector	Terminal
D9	4	--	Yes

Is the inspection result normal?

YES

Replace front power window motor LH. Refer to Removal and Installation .

Repair or replace harness.