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Check Encoder Circuit (Driver Side)

  1. CHECK FRONT POWER WINDOW MOTOR (DRIVER SIDE) POWER SUPPLY 
    1. Turn ignition switch ON.
    2. Check voltage between front power window motor (driver side) connector D8 terminal 4 and ground.

      4 (W) - Ground : Approx. 10V 

      Fig 1: Identifying Voltage Between Front Power Window Motor (Driver Side) Connector D8 Terminal 4 And Ground
      G05221217Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO  3.

    NG: GO TO  2.

  2. CHECK HARNESS CONTINUITY 1 
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch and front power window motor (driver side).
    3. Check continuity between power window main switch connector D6 terminal 15 and front power window motor (driver side) connector D8 terminal 4.

      15 (W) - 4 (W) : Continuity should exist. 

      Fig 2: Identifying Continuity Between Power Window Main Switch Connector D6 Terminal 15 And Front Power Window Motor Connector D8 Terminal 4
      G05221218Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace power window main switch.

    NG: Repair or replace harness.

  3. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor (driver side) connector.
    3. Check continuity between front power window motor (driver side) connector D8 terminal 6 and ground.

      6 (SB) - Ground : Continuity should exist. 

      Fig 3: Identifying Continuity Between Front Power Window Motor (Driver Side) Connector D8 Terminal 6 And Ground
      G05221208Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO  5.

    NG: GO TO  4.

  4. CHECK HARNESS CONTINUITY 2 
    1. Disconnect power window main switch connector.
    2. Check continuity between power window main switch connector D6 terminal 2 and front power window motor (driver side) connector D8 terminal 6.

      2 (SB) - 6 (SB) : Continuity should exist. 

      Fig 4: Identifying Continuity Between Power Window Switch Connector D6 Terminal 2 And Front Power Window Motor Connector D8 Terminal 6
      G05221220Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace power window main switch.

    NG: Repair or replace harness.

  5. CHECK ENCODER SIGNAL 
    1. Connect front power window motor (driver side) connector.
    2. Turn ignition switch ON.
    3. Check signal between power window main switch connector and ground with oscilloscope.
      4. Fig 5: Identifying Signal Between Power Window Main Switch Connector And Ground
      G04918723Courtesy of NISSAN MOTOR CO., U.S.A.
    ENCODER SIGNAL

    Connector Terminals (Wire color) Condition Signal (Reference value)
    (+) (-)
    D6 13 (PU) Ground Window DOWN
    G04877356Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace power window main switch.

    NG: GO TO  6.

  6. CHECK HARNESS CONTINUITY 3 
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch and front power window motor (driver side) connector.
    3. Check continuity between power window main switch connector D6 terminal 13 and front power window motor (driver side) connector D8 terminal 3.

      13 (PU) - 3 (PU) : Continuity should exist. 

      Fig 6: Identifying Continuity Between Power Window Main Switch Connector D6 Terminal 13 And Front Power Window Motor Connector D8 Terminal 3
      G05221223Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace front power window motor (driver side).

    NG: Repair or replace harness.

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