Encoder Circuit Check (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 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.
  4 (R) - Ground: Approx. 10V
OK or NG
1. OK: GO TO 3
2. NG: GO TO 2.
Fig 1: Checking Voltage Between Passenger Side Power Window Motor 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 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.
  4 (R) - 4 (R): Continuity should exist.
OK or NG
1. OK: Replace power window sub-switch.
2. NG: Repair or replace harness.
Fig 2: Checking Continuity Between Power Window Sub-Switch Connector D43 Terminal And Passenger Side Power Window Motor Connector D38 Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.
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
  6 (PU) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 5
2. NG: GO TO 4.
Fig 3: Checking Continuity Between Passenger Side Power Window Motor Connector D38 Terminal 6 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
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.
  3 (PU) - 6 (PU): Continuity should exist.
OK or NG
1. OK: Replace power window sub switch.
2. NG: Repair or replace harness.
Fig 4: Checking Continuity Between Power Window Sub-Switch Connector D43 Terminal And Passenger Side Power Window Motor Connector D38 Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.
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: Power Window Sub-Switch Connector And Ground Signal Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Signal Between Power Window Sub-Switch Connector And Ground With Oscilloscope
  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.
  12 (LG) - 3 (LG): Continuity should exist.
OK or NG
1. OK: Replace passenger side power window motor.
2. NG: Repair or replace harness.
Fig 7: Checking Continuity Between Power Window Sub-Switch Connector D43 Terminal And Passenger Side Power Window Motor Connector D38 Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.