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Encoder Circuit Check

  1. CHECK ENCODER OPERATION
    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.
      TERMINAL SIGNAL REFERENCE

      Terminals Signal (Reference value)
      (+) (-)
      Power window main switch connector Terminal
      D8 9 Ground Refer to following signal
      13
      Fig 1: Encoder Signal Waveform Graph
      G04888492

    Is the inspection result normal? 

    YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    NO: GO TO 2.

  2. 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 and ground.
      TERMINAL VOLTAGE SPECIFICATION

      Terminal Voltage (V) (Approx.)
      (+) (-)
      Front power window motor (driver side) connector Terminal
      D10 4 Ground 10

    Is the measurement value within the specification? 

    YES: GO TO  4.

    NO: GO TO 3.

  3. CHECK HARNESS CONTINUITY 1
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector and front power window motor (driver side) connector.
    3. Check continuity between power window main switch connector and front power window motor (driver side) connector.
      TERMINAL CONTINUITY SPECIFICATION

      Power window main switch connector Terminal Front power window motor (driver side) connector Terminal Continuity
      D8 15 D10 4 Existed
    4. Check continuity between power window main switch connector and ground.
      TERMINAL CONTINUITY SPECIFICATION

      Power window main switch connector Terminal Ground Continuity
      D8 15 Not existed

    Is the inspection result normal? 

    YES: Replace power window main switch. Refer to , "REMOVAL AND INSTALLATION ". After that, Refer to , "POWER WINDOW MAIN SWITCH : SPECIAL REPAIR REQUIREMENT ".

    NO: Repair or replace harness.

  4. 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 and ground.
      TERMINAL CONTINUITY SPECIFICATION

      Front power window motor (driver side) connector Terminal Ground Continuity
      D10 6 Existed

    Is the inspection result normal? 

    YES: GO TO  6.

    NO: GO TO 5.

  5. CHECK HARNESS CONTINUITY 2
    1. Disconnect power window main switch connector.
    2. Check continuity between power window main switch connector and front power window motor (driver side) connector.
      TERMINAL CONTINUITY SPECIFICATION

      Power window main switch connector Terminal Front power window motor (driver side) connector Terminal Continuity
      D8 2 D10 6 Existed

    Is the inspection result normal? 

    YES: Replace power window main switch. Refer to , "REMOVAL AND INSTALLATION ". After that, Refer to , "POWER WINDOW MAIN SWITCH : SPECIAL REPAIR REQUIREMENT ".

    NO: Repair or replace harness.

  6. CHECK HARNESS CONTINUITY 3
    1. Disconnect power window main switch connector.
    2. Check continuity between power window main switch connector and front power window motor (driver side) connector.
      TERMINAL CONTINUITY SPECIFICATION

      Power window main switch connector Terminal Front power window motor (driver side) connector Terminal Continuity
      D8 9 D10 3 Existed
      13 5
    3. Check continuity between power window main switch connector and ground.
      TERMINAL CONTINUITY SPECIFICATION

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

    Is the inspection result normal? 

    YES: Replace front power window motor (driver side). Refer to "REMOVAL AND INSTALLATION ". After that, Refer to , "DRIVER SIDE : SPECIAL REPAIR REQUIREMENT ".

    NO: Repair or replace harness.

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