Diagnosis Procedure

1. Turn power switch ON.
2. Check signal between main power window and door lock/unlock switch harness connector and ground with oscilloscope.

   (+)		(-)	Signal (Reference value)
   Main power window and door lock/unlock switch
   Connector	Terminal
   D35	4	Ground	Refer to following signal
   	5

   Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

GO TO 7.

NO

GO TO 2.

1. Turn power switch OFF.
2. Disconnect main power window and door lock/unlock switch connector and front power window motor LH connector.
3. Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.

   Main power window and door lock/unlock switch		Front power window motor LH		Continuity
   Connector	Terminal	Connector	Terminal
   D35	4	D37	5	Yes
   	5		6

4. 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
   D35	4		No
   	5

Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace harness.

1. Connect main power window and door lock/unlock switch connector.
2. Turn power switch ON.
3. Check voltage between front power window motor LH harness connector and ground.

   (+)		(-)	Voltage (Approx.)
   Front power window motor LH
   Connector	Terminal
   D37	2	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 5.

NO

GO TO 4.

1. Turn power switch OFF.
2. Disconnect main power window and door lock/unlock switch connector.
3. Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.

   Main power window and door lock/unlock switch		Front power window motor LH		Continuity
   Connector	Terminal	Connector	Terminal
   D35	14	D37	2	Yes

4. 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
   D35	14		No

Is the inspection result normal?

YES

Replace main power window and door lock/unlock switch. Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .

NO

Repair or replace harness.

1. Turn power switch OFF.
2. Check continuity between front power window motor LH harness connector and ground.

   Front power window motor LH		Ground	Continuity
   Connector	Terminal
   D37	4		Yes

Is the inspection result normal?

YES

GO TO 7.

NO

GO TO 6.

1. Disconnect main power window and door lock/unlock switch connector.
2. Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.

   Main power window and door lock/unlock switch		Front power window motor LH		Continuity
   Connector	Terminal	Connector	Terminal
   D35	12	D37	4	Yes

3. 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
   D35	12		No

Is the inspection result normal?

YES

Replace front power window motor LH. Refer to FRONT REGULATOR : Removal & Installation .

NO

Repair or replace harness.

Refer to Inspection .

Inspection End.