Encoder Circuit Check (Driver Side)

CHECK POWER WINDOW MOTOR (FRONT DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between power window motor (front driver side) connector D9 terminal 4 and ground.
  4 (G/R) - Ground: Approx. 10V
OK or NG
1. OK: GO TO 3.
2. NG: GO TO 2.
  
  Fig 1: Checking Voltage Between Power Window Motor (Front Driver Side) Connector D9 Terminal 4 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window motor (front driver side) and power window main switch.
3. Check continuity between power window motor (front driver side) connector D9 terminal 4 and power window main switch connector D7 terminal 15.
  4 (G/R) - 15 (G/R): Continuity should exist.
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness.
  
  Fig 2: Checking Continuity Between Power Window Motor (Front Driver Side) Connector D9 Terminal 4 And Power Window Main Switch Connector D7 Terminal 15
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Disconnect power window motor (front driver side) connector.
3. Check continuity between power window motor (front driver side) connector D9 terminal 6 and round.
  6 (W/B) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 5.
2. NG: GO TO 4.
  
  Fig 3: Checking Continuity Between Power Window Motor (Front Driver Side) Connector D9 Terminal 6 And Round
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND CIRCUIT
1. Disconnect power window main switch connector.
2. Check continuity between power window motor (front driver side) connector D9 terminal 6 and power window main switch connector D7 terminal 2.
  6 (W/B) - 2 (W/B): Continuity should exist.
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness.
  
  Fig 4: Checking Continuity Between Power Window Motor (Front Driver Side) Connector D9 Terminal 6 And Power Window Main Switch Connector D7 Terminal 2
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER SIGNAL
1. Connect power window motor (front driver side) connector.
2. Turn ignition switch ON.
3. Check the signal between power window main switch connector and ground with oscilloscope.
  
  Fig 5: Signal Check Between Power Window Main Switch Connector And Ground With Oscilloscope Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Signal Between Power Window Main Switch Connector And Ground With Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power window main switch.
2. NG: GO TO 6.
CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window motor (front driver side) and power window main switch connector.
3. Check continuity between power window motor (front driver side) connector D9 terminal 3 and power window main switch connector D7 terminal 13.
  3 (G/Y) - 13 (G/Y): Continuity should exist.
OK or NG
1. OK: Replace power window motor (front driver side)
2. NG: Repair or replace harness.
  
  Fig 7: Checking Continuity Between Power Window Motor (Front Driver Side) Connector D9 Terminal 3 And Power Window Main Switch Connector D7 Terminal 13
  Courtesy of NISSAN MOTOR CO., U.S.A.