DRIVER SIDE: 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 main switch harness connector and ground with oscilloscope.

      Signal name	(+)		(-)	Signal (Reference value)
      	Power window main switch
      	Connector	Terminal
      Encoder signal 1	D56	11	Ground	Refer to following signal
      Encoder signal 2		12

      Fig 1: Power Window Main Switch Encoder Signal Waveform

      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 2.

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

      Power window main switch		Front power window motor LH		Continuity
      Connector	Terminal	Connector	Terminal
      D56	11	D9	6	Yes
      	12		4

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

      Power window main switch		Ground	Continuity
      Connector	Terminal
      D56	11		No
      	12

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

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

      (+)		(-)	Voltage (Approx.)
      Front power window motor LH
      Connector	Terminal
      D9	5	Ground	12

      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 power window main switch connector.
   3. Check continuity between power window main switch harness connector and front power window motor LH harness connector.

      Power window main switch		Front power window motor LH		Continuity
      Connector	Terminal	Connector	Terminal
      D56	3	D9	5	Yes

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

      Power window main switch		Ground	Continuity
      Connector	Terminal
      D56	3		No

      Is the inspection result normal? 

      YES: Replace power window main switch. 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 LH harness connector and ground.

      Front power window motor LH		Ground	Continuity
      Connector	Terminal
      D9	3		Yes

      Is the inspection result normal? 

      YES: Replace front power window motor LH. Refer to "REMOVAL AND INSTALLATION - FRONT POWER WINDOW MOTOR ".

      NO: GO TO 6.

6. CHECK GROUND CIRCUIT 2 
   1. Disconnect power window main switch connector.
   2. Check continuity between power window main switch harness connector and front power window motor LH harness connector.

      Power window main switch		Front power window motor LH		Continuity
      Connector	Terminal	Connector	Terminal
      D56	10	D9	3	Yes

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

      Power window main switch		Ground	Continuity
      Connector	Terminal
      D56	10		No

      Is the inspection result normal? 

      YES: Replace power window main switch. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.