Diagnosis Procedure

Regarding Wiring Diagram information, refer to appropriate Wiring Diagram .

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

      Signal name	(+)		(-)	Signal (Reference value)
      	Rear power window switch RH
      	Connector	Terminal
      Encoder signal 1	D304	12	Ground	Refer to following signal
      Encoder signal 2		15

      Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES

   Replace rear power window switch RH. Refer to Removal and Installation .

   NO

   GO TO 2.

2. CHECK ENCODER SIGNAL CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect rear power window switch RH connector and rear power window motor RH connector.
   3. Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.

      Rear power window switch RH		Rear power window motor RH		Continuity
      Connector	Terminal	Connector	Terminal
      D304	12	D305	4	Yes
      	15		6

   4. Check continuity rear power window switch RH harness connector and ground.

      Rear power window switch RH		Ground	Continuity
      Connector	Terminal
      D304	12		No
      	15

   Is the inspection result normal?

   YES

   GO TO 3.

   NO

   Repair or replace harness.

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

      (+)		(-)	Voltage (Approx.)
      Rear power window motor RH
      Connector	Terminal
      D305	5	Ground	Battery voltage

   Is the inspection result normal?

   YES

   GO TO 5.

   NO

   GO TO 4.

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

      Rear power window switch RH		Rear power window motor RH		Continuity
      Connector	Terminal	Connector	Terminal
      D304	4	D305	5	Yes

   4. Check continuity between rear power window switch RH harness connector and ground.

      Rear power window switch RH		Ground	Continuity
      Connector	Terminal
      D304	4		No

   Is the inspection result normal?

   YES

   Replace rear power window 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 rear power window motor RH harness connector and ground.

      Rear power window motor RH		Ground	Continuity
      Connector	Terminal
      D305	3		Yes

   Is the inspection result normal?

   YES

   Replace rear power window motor RH. Refer to Removal and Installation .

   NO

   GO TO 6.

6. CHECK GROUND CIRCUIT 2 
   1. Disconnect rear power window switch RH harness connector.
   2. Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.

      Rear power window switch RH		Rear power window motor RH		Continuity
      Connector	Terminal	Connector	Terminal
      D304	3	D305	3	Yes

   3. Check continuity between rear power window switch RH harness connector and ground.

      Rear power window switch RH		Ground	Continuity
      Connector	Terminal
      D304	3		No

   Is the inspection result normal?

   YES

   Replace rear power window switch RH. Refer to Removal and Installation .

   NO

   Repair or replace harness.