Diagnosis Procedure

1. Turn Ignition Switch OFF.
2. Disconnect Power Window Main Switch connector.
3. Check signal between Power Window Main Switch harness connector and ground with oscilloscope when door lock and unlock switch (Driver Side and Passenger Side) is turned to "LOCK" or "UNLOCK".
4. Check that signals which are shown in the figure below can be detected during 10 seconds just after door lock and unlock switch (Driver Side and Passenger Side) is turned to "LOCK" or "UNLOCK".

   (+)		(-)	Signal (Reference value)
   Power Window Main Switch
   Connector	Terminal
   D8	14	Ground	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES 

Replace Power Window Main Switch. Refer to REMOVAL AND INSTALLATION .

NO 

GO TO STEP 2  .

1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and Power Window Main Switch harness connector.

   BCM		Power Window Main Switch		Continuity
   Connector	Terminal	Connector	Terminal
   M123	132	D8	14	Existed

3. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M123	132		Not existed

Is the inspection result normal?

YES 

Replace BCM. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .

NO 

Repair or replace harness.