LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2009 >> 370Z Base, Standard >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System >> Component Diagnosis >> Encoder >> Driver Side >> DRIVER SIDE : Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DRIVER SIDE : Diagnosis Procedure

  1. CHECK ENCODER OPERATION
    1. Turn ignition switch ON.
    2. Check signal between power window main switch harness connector and ground with oscilloscope.
    SIGNAL REFERENCE

    (+) (-) Signal (Reference value)
    Power window main switch
    Connector Terminal
    D8 9 Ground Refer to the following signal
    13
    Fig 1: Encoder Signal Graph
    G05982168Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Replace power window main switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: GO TO 2.

  2. CHECK ENCODER SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector and driver side power window motor connector.
    3. Check continuity between power window main switch harness connector and driver side power window motor harness connector.
      CONTINUITY CHART

      Power window main switch Driver side power window motor Continuity
      Connector Terminal Connector Terminal
      D8 9 D10 5 Existed
      13 2
    4. Check continuity between power window main switch harness connector and ground.
    CONTINUITY CHART

    Power window main switch Ground Continuity
    Connector Terminal
    D8 9 Not existed
    13

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair or replace harness.

  3. CHECK ENCODER POWER SUPPLY CIRCUIT 1
    1. Connect power window main switch connector.
    2. Turn ignition switch ON.
    3. Check voltage between driver side power window motor harness connector and ground.
    VOLTAGE SPECIFICATION

    (+) (-) Voltage (V) (Approx.)
    Driver side power window motor
    Connector Terminal
    D10 4 Ground Battery voltage

    Is the measurement value within the specification? 

    YES: GO TO  5.

    NO: GO TO 4.

  4. CHECK ENCODER POWER SUPPLY CIRCUIT 2
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector.
    3. Check continuity between power window main switch harness connector and driver side power window motor harness connector.
      CONTINUITY CHART

      Power window main switch Driver side power window motor Continuity
      Connector Terminal Connector Terminal
      D8 5 D10 4 Existed
    4. Check continuity between power window main switch harness connector and ground.
    CONTINUITY CHART

    Power window main switch Ground Continuity
    Connector Terminal
    D8 5 Not existed

    Is the inspection result normal? 

    YES: Replace power window main switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness.

  5. CHECK GROUND CIRCUIT 1
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector.
    3. Check continuity between power window main switch harness connector and driver side power window motor harness connector.
    CONTINUITY CHART

    Power window main switch Driver side power window motor Continuity
    Connector Terminal Connector Terminal
    D8 14 D10 1 Existed

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Repair or replace harness.

  6. CHECK GROUND CIRCUIT 2
    1. Connect power window main switch connector.
    2. Check continuity between power window main switch harness connector and ground.
    CONTINUITY CHART

    Power window main switch Ground Continuity
    Connector Terminal
    D8 14 Existed

    Is the inspection result normal? 

    YES: Replace driver side power window motor. Refer to "REMOVAL AND INSTALLATION ".

    NO: Replace power window main switch. Refer to "REMOVAL AND INSTALLATION ".

scientia non olet · About LEMON Manuals