Encoder Circuit Check (Front Passenger Side)

WARNING: This page is about a different car, the 2005 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER WINDOW MOTOR (FRONT PASSENGER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between power window motor (front passenger side) connector D38 terminal 4 and ground.
  4 (G/R) - Ground: Approx.10V
OK or NG
1. OK: GO TO 6.
2. NG: GO TO 2.
  
  Fig 1: Checking Voltage Between Power Window Motor (Front Passenger Side) Connector D38 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 passenger side) and power window sub-switch (front passenger side).
3. Check continuity between power window motor (front passenger side) connector D38 terminal 4 and power window sub-switch (front passenger side) connector D36 terminal 4.
  4 (G/R) - 4 (G/R): Continuity should exist.
OK or NG
1. OK: Replace power window sub-switch (front passenger side).
2. NG: Repair or replace harness.
  
  Fig 2: Checking Continuity Between Power Window Motor (Front Passenger Side) Connector D38 Terminal 4 And Power Window Sub-Switch (Front Passenger Side) Connector D36 Terminal 4
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Disconnect power window motor (front passenger side) connector.
3. Check continuity between power window motor (front passenger side) connector D38 terminal 6 and ground.
  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 Passenger Side) Connector D38 Terminal 6 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ENCODER GROUND CIRCUIT
1. Disconnect power window sub-switch (front passenger side) connector.
2. Check continuity between power window motor (front passenger side) connector D38 terminal 6 and power window sub-switch (front passenger side) connector D36 terminal 3.
  6 (W/B) - 3 (W/B): Continuity should exist.
  
  Fig 4: Checking Continuity Between Power Window Motor (Front Passenger Side) Connector D38 Terminal 6 And Power Window Sub-Switch (Front Passenger Side) Connector D36 Terminal 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power window sub switch (front passenger side).
2. NG: Repair or replace harness.
CHECK ENCODER SIGNAL
1. Connect power window motor (front passenger side) connector.
2. Turn ignition switch ON.
3. Check the signal between power window sub-switch (front passenger side) connector and ground with oscilloscope.
  
  Fig 5: Signal Check Between Power Window Sub-Switch (Front Passenger Side) Connector And Ground With Oscilloscope Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Signal Between Power Window Sub-Switch (Front Passenger Side) Connector And Ground With Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power sub-switch (front passenger side).
2. NG: GO TO 6.
CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window motor (front passenger side) and power window sub-switch (front passenger side) connector.
3. Check continuity between power window motor (front passenger side) connector D38 terminal 3 and power window sub-switch (front passenger side) connector D36 terminal 12.
  3 (G/Y) - 12 (G/Y): Continuity should exist.
OK or NG
1. OK: Replace power window motor (front passenger side).
2. NG: Repair or replace harness.
  
  Fig 7: Checking Continuity Between Power Window Motor (Front Passenger Side) Connector D38 Terminal 3 And Power Window Sub-Switch (Front Passenger Side) Connector D36 Terminal 12
  Courtesy of NISSAN MOTOR CO., U.S.A.