Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK ENCODER SIGNAL
   
   
   1. Turn ignition switch ON.
   2. Check signal between power window and door lock/unlock switch RH harness connector and ground with oscilloscope.

      Signal name	(+)		(-)	Signal (Reference value)
      	Power window and door lock/unlock switch RH
      	Connector	Terminal
      Encoder signal 1	D157	12	Ground	Refer to following signal
      Encoder signal 2		15

      Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES 

   Replace power window and door lock/unlock switch RH. Refer to REMOVAL AND INSTALLATION .

   NO 

   GO TO STEP 2  .

2. CHECK ENCODER SIGNAL CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect power window and door lock/unlock switch RH connector and power window and door lock/unlock switch motor RH connector.
   3. Check continuity between power window and door lock/unlock switch RH harness connector and front power window motor RH harness connector.

      Power window and door lock/unlock switch RH		Front power window motor RH		Continuity
      Connector	Terminal	Connector	Terminal
      D157	12	D104	6	Yes
      	15		4

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

      Power window and door lock/unlock switch RH		Ground	Continuity
      Connector	Terminal
      D157	12		No
      	15

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Repair or replace harness.

3. CHECK ENCODER POWER SUPPLY
   
   
   1. Connect power window and door lock/unlock switch RH connector.
   2. Turn ignition switch ON.
   3. Check voltage between power window and door lock/unlock motor RH harness connector and ground.

      (+)		(-)	Voltage (Approx.)
      Power window and door lock/unlock motor RH
      Connector	Terminal
      D104	5	Ground	Battery voltage

   Is the inspection result normal?

   YES 

   GO TO STEP 5  .

   NO 

   GO TO STEP 4  .

4. CHECK ENCODER POWER SUPPLY CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect power window and door lock/unlock switch RH connector.
   3. Check continuity between power window and door lock/unlock switch RH harness connector and power window and door lock/unlock motor RH harness connector.

      Power window an door lock/unlock switch RH		Front power window motor RH		Continuity
      Connector	Terminal	Connector	Terminal
      D157	4	D104	5	Yes

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

      Power window and door lock/unlock switch RH		Ground	Continuity
      Connector	Terminal
      D157	4		No

   Is the inspection result normal?

   YES 

   Replace power window and door lock/unlock switch RH. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness.

5. CHECK GROUND CIRCUIT 1
   
   
   1. Turn ignition switch OFF.
   2. Check continuity between front power window motor RH harness connector and ground.

      Front power window motor RH		Ground	Continuity
      Connector	Terminal
      D104	3		Yes

   Is the inspection result normal?

   YES 

   Replace front power window motor RH. Refer to REMOVAL AND INSTALLATION .

   NO 

   GO TO STEP 6  .

6. CHECK GROUND CIRCUIT 2
   
   
   1. Disconnect power window and door lock/unlock switch RH connector.
   2. Check continuity between power window and door lock/unlock switch RH harness connector and front power window motor RH harness connector.

      Power window and door lock/unlock switch RH		Front power window motor RH		Continuity
      Connector	Terminal	Connector	Terminal
      D157	3	D104	3	Yes

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

      Power window and door lock/unlock switch RH		Ground	Continuity
      Connector	Terminal
      D157	3		No

   Is the inspection result normal?

   YES 

   Replace power window and door lock/unlock switch RH. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness.