Encoder Circuit Check (Driver Side)

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DRIVER SIDE POWER WINDOW MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between driver side power window motor connector D9 terminal 4 and ground.
  
  Fig 1: Checking Voltage Between Terminal 4 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  4 (R) - Ground: Approx. 10 V
OK or NG
1. OK: GO TO 3 .
2. NG: GO TO 2 .
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window main switch and driver side power window motor connector.
3. Check continuity between power window main switch connector D7 terminal 5 and driver side power window motor connector D9 terminal 4.
  
  Fig 2: Checking Continuity Between Terminal 5 & Terminal 4
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  5 (R) - 4 (R): Continuity should exist .
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness between power window main switch and driver side power window motor.
CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Disconnect driver side power window motor connector.
3. Check continuity between driver side power window regulator connector D9 terminal 6 and ground.
  
  Fig 3: Checking Continuity Between Terminal 6 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  6 (PU) - Ground: Continuity should exist .
OK or NG
1. OK: GO TO 5 .
2. NG: GO TO 4 .
CHECK ENCODER GROUND CIRCUIT
1. Disconnect power window main switch connector.
2. Check continuity between power window main switch connector D7 terminal 14 and driver side power window motor connector D9 terminal 6.
  
  Fig 4: Checking Continuity Between Terminal 14 & Terminal 6
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  14 (PU) - 6 (PU): Continuity should exist .
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness between power window main switch and driver side power window motor.
CHECK ENCODER SIGNAL
1. Connect driver side power window motor connector.
2. Turn ignition switch ON.
3. Check the signal between power window main switch connector and ground with oscilloscope.
  
  Fig 5: Oscilloscope Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Signal Between Power Window Main Switch Connector Terminal 13 & Ground
  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 main switch and driver side power window motor connector.
3. Check continuity between power window main switch connector D7 terminal 13 and driver side power window motor connector D9 terminal 3.
  
  Fig 7: Checking Continuity Between Terminal 13 & Terminal 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  13 (LG) - 3 (LG): Continuity should exist .
OK or NG
1. OK: Replace driver side power window motor.
2. NG: Repair or replace harness between power window main switch and driver side power window motor.