Encoder Circuit Check (Passenger 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 PASSENGER SIDE POWER WINDOW MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between passenger side power window motor connector D38 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 sub-switch and passenger side power window motor connector.
3. Check continuity between power window sub-switch connector D43 terminal 4 and passenger side power window motor connector D38 terminal 4.
  
  Fig 2: Checking Continuity Between Connector D43 Terminal 4 & Connector D38 Terminal 4
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  4 (R) - 4 (R): Continuity should exist .
OK or NG
1. OK: Replace power window sub-switch.
2. NG: Repair or replace harness between power window subswitch and passenger side power window motor.
CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Disconnect passenger side power window motor connector.
3. Check continuity between passenger side power window motor connector D38 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 sub-switch connector.
2. Check continuity between power window sub-switch connector D43 terminal 3 and passenger side power window motor connector D38 terminal 6.
  
  Fig 4: Checking Continuity Between Terminal 3 & Terminal 6
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  3 (PU) - 6 (PU): Continuity should exist .
OK or NG
1. OK: Replace power window sub switch.
2. NG: Repair or replace harness between power window subswitch and passenger side power window motor.
CHECK ENCODER SIGNAL
1. Connect passenger side power window motor connector.
2. Turn ignition ON.
3. Check the signal between power window sub-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 Sub-Switch Connector Terminal 12 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power window sub-switch.
2. NG: GO TO 6 .
CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window sub-switch and passenger side power window motor connector.
3. Check continuity between power window sub-switch connector D43 terminal 12 and passenger side power window motor connector D38 terminal 3.
  
  Fig 7: Checking Continuity Between Terminal 12 & Terminal 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  12 (LG) - 3 (LG): Continuity should exist .
OK or NG
1. OK: Replace passenger side power window motor.
2. NG: Repair or replace harness between power window sub-switch and passenger side power window motor.