DRIVER SIDE : Diagnosis Procedure

Encoder Circuit Check

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

      (+)		(-)	Signal (Reference value)
      Power window main switch
      Connector	Terminal
      D5	9	Ground	Refer to following signal
      	13

      Fig 1: Encoder Signal Waveform Graph

      Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

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

      NO: GO TO 2.

2. CHECK ENCORDER SIGNAL CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect power window main switch connector and front power window motor (driver side) connector.
   3. Check continuity between power window main switch harness connector and front power window motor (driver side) harness connector.
      TERMINAL CONTINUITY REFERENCE
      
      

      Power window main switch		Front power window motor (driver side)		Continuity
      Connector	Terminal	Connector	Terminal
      D5	9	D7	3	Existed
      	13		5

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

      Power window main switch		Ground	Continuity
      Connector	Terminal
      D5	9		Not existed
      	13

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness or connector.

3. CHECK ENCORDER POWER SUPPLY
   1. Connect power window main switch connector.
   2. Turn ignition switch ON.
   3. Check voltage between front power window motor (driver side) harness connector and ground.
      TERMINAL VOLTAGE REFERENCE
      
      

      (+)		(-)	Voltage (V) (Approx.)
      Front power window motor (driver side)
      Connector	Terminal
      D7	4	Ground	Battery voltage

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: GO TO  5.

4. CHECK GROUND CIRCUIT
   1. Turn ignition switch OFF.
   2. Check continuity between power window main switch harness connector and front power window motor (driver side) harness connector.
      TERMINAL CONTINUITY REFERENCE
      
      

      Power window main switch		Front power window motor (driver side)		Continuity
      Connector	Terminal	Connector	Terminal
      D5	2	D7	6	Existed

   3. Check continuity between front power window motor (driver side) harness connector and ground.
      TERMINAL CONTINUITY REFERENCE
      
      

      Front power window motor (driver side)		Ground	Continuity
      Connector	Terminal
      D7	6		Not existed

      Is the inspection result normal? 

      YES: Replace front power window motor (driver side). Refer to "REMOVAL AND INSTALLATION "

      NO: Repair or replace harness or connector.

5. CHECK POWER SUPPLY CIRCUIT
   1. Turn ignition switch OFF.
   2. Check continuity between power window main switch harness connector and front power window motor (driver side) harness connector.
      TERMINAL CONTINUITY REFERENCE
      
      

      Power window main switch		Front power window motor (driver side)		Continuity
      Connector	Terminal	Connector	Terminal
      D5	15	D7	4	Existed

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

      Power window main switch		Ground	Continuity
      Connector	Terminal
      D5	15		Not existed

      Is the inspection result normal? 

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

      NO: Repair or replace harness or connector.