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Diagnosis Procedure

  1. CHECK ENCODER SIGNAL 
    1. Turn ignition switch ON.
    2. Check signal between front power window switch (passenger side) harness connector and ground with oscilloscope.
      SIGNAL REFERENCE

      Front power window switch (passenger side) Ground Signal (Reference value)
      Connector Terminal
      D38 12 Refer to following signal
      15
      Fig 1: Identifying Signal Pulses Between Front Power Window Switch (Passenger Side) Harness Connector & Ground
      G05728513Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Replace front power window switch (passenger side). Refer to REMOVAL AND INSTALLATION  .

    NO: GO TO  2.

  2. CHECK ENCODER SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect front power window switch (passenger side) connector and front power window motor (passenger side) connector.
    3. Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.
      CONTINUITY SPECIFICATION

      Front power window switch (passenger side) Front power window motor (passenger side) Continuity
      Connector Terminal Connector Terminal
      D38 12 D40 5 Existed
      15 3
    4. Check continuity between front power window switch (passenger side) harness connector and ground.
      CONTINUITY SPECIFICATION

      Front power window switch (passenger side) Ground Continuity
      Connector Terminal
      D38 12 Not existed
      15

    Is the inspection result normal? 

    YES: GO TO  3.

    NO: Repair or replace harness or connector.

  3. CHECK ENCODER POWER SUPPLY 
    1. Connect front power window switch (passenger side) connector.
    2. Turn ignition switch ON.
    3. Check voltage between front power window motor (passenger side) harness connector and ground.
      VOLTAGE SPECIFICATION

      Front power window motor (passenger side) Ground Voltage (V) (Approx.)
      Connector Terminal
      D40 4 Battery voltage

    Is the inspection result normal? 

    YES: GO TO  4.

    NO: GO TO  5.

  4. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.
      CONTINUITY SPECIFICATION

      Front power window switch (passenger side) Front power window motor (passenger side) Continuity
      Connector Terminal Connector Terminal
      D38 3 D40 6 Existed
    3. Check continuity between front power window motor (passenger side) harness connector and ground.
      CONTINUITY SPECIFICATION

      Front power window motor (passenger side) Ground Continuity
      Connector Terminal
      D40 6 Existed

    Is the inspection result normal? 

    YES: Replace front power window motor (passenger side). Refer to REMOVAL AND INSTALLATION

    NO: Repair or replace harness or connector.

  5. CHECK POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.
      CONTINUITY SPECIFICATION

      Front power window switch (passenger side) Front power window motor (passenger side) Continuity
      Connector Terminal Connector Terminal
      D38 4 D40 4 Existed
    3. Check continuity between front power window switch (passenger side) harness connector and ground.
      CONTINUITY SPECIFICATION

      Front power window switch (passenger side) Ground Continuity
      Connector Terminal
      D38 4 Not existed

    Is the inspection result normal? 

    YES: Replace front power window switch (passenger side). Refer to REMOVAL AND INSTALLATION  .

    NO: Repair or replace harness or connector.

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