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Home >> Nissan-Datsun >> 2012 >> 370Z Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (Roadster) >> DTC/Circuit Diagnosis >> Encoder >> Passenger Side >> PASSENGER SIDE: Diagnosis Procedure

PASSENGER SIDE: Diagnosis Procedure

  1. CHECK ENCODER SIGNAL
    1. Turn ignition switch ON.
    2. Check signal between power window sub-switch harness connector and ground with oscilloscope.
      (+) (-) Signal (Reference value)
      Power window sub-switch
      Connector Terminal
      D38 12 Ground Refer to the following signal
      15
      Fig 1: Identifying Power Window Encoder Signal Graphs (Passenger Side)
      G05974396Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES >> Replace power window sub-switch. Refer to , "REMOVAL AND INSTALLATION ".

      NO >> GO TO 2.

  2. CHECK ENCODER SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect power window sub-switch connector and passenger side power window motor connector.
    3. Check continuity between power window sub-switch harness connector and passenger side power window motor harness connector.
      Power window sub-switch Passenger side power window motor Continuity
      Connector Terminal Connector Terminal
      D38 12 D40 2 Existed
      15 5
    4. Check continuity between power window sub-switch connector and ground.
      Power window sub-switch Ground Continuity
      Connector Terminal
      D38 12 Not existed
      15

      Is the inspection result normal? 

      YES >> GO TO 3.

      NO >> Repair or replace harness.

  3. CHECK ENCODER POWER SUPPLY CIRCUIT
    1. Connect power window sub-switch connector.
    2. Turn ignition switch ON.
    3. Check voltage between passenger side power window motor harness connector and ground.
      (+) (-) Voltage (V) (Approx.)
      Passenger side power window motor
      Connector Terminal
      D40 4 Ground 12

      Is the measurement value within the specification? 

      YES >> GO TO  5.

      NO >> GO TO 4.

  4. CHECK HARNESS CONTINUITY
    1. Turn ignition switch OFF.
    2. Disconnect power window sub-switch connector.
    3. Check continuity between power window sub-switch harness connector and passenger side power window motor harness connector.
      Power window sub-switch Passenger side power window motor Continuity
      Connector Terminal Connector Terminal
      D38 4 D40 4 Existed
    4. Check continuity between power window sub-switch harness connector and ground.
      Power window sub-switch Ground Continuity
      Connector Terminal
      D38 4 Not existed

      Is the inspection result normal? 

      YES >> Replace power window sub-switch. Refer to , "REMOVAL AND INSTALLATION ".

      NO >> Repair or replace harness.

  5. CHECK GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect power window sub-switch connector.
    3. Check continuity between power window sub-switch harness connector and passenger side power window motor harness connector.
      Power window sub-switch Passenger side power window motor Continuity
      Connector Terminal Connector Terminal
      D38 3 D40 1 Existed

      Is the inspection result normal? 

      YES >> Replace passenger side power window motor. Refer to , "REMOVAL AND INSTALLATION ".

      NO >> Repair or replace harness.

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