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Home › Infiniti › 2008 › G37 Base › Repair and Diagnosis › Brakes › Traction Control › Brake Control System › Component Diagnosis › VDC Off Switch › Diagnosis Procedure

Diagnosis Procedure

  1. CHECK VDC OFF SWITCH
    1. Turn ignition switch OFF.
    2. Disconnect VDC OFF switch connector.
    3. Check continuity between VDC OFF switch connector terminals.
    CONTINUITY REFERENCE CHART

    VDC OFF switch Condition Continuity
    Connector Terminal
    M19 1 - 2 When VDC OFF switch is hold pressed. Existed
    When releasing VDC OFF switch. Not existed

    Is the inspection result normal? 

    YES: GO TO  2.

    NO: VDC OFF switch is malfunctioning. Replace VDC OFF switch.

  2. CHECK VDC OFF SWITCH HARNESS
    1. Disconnect ABS actuator and electric unit (control unit) connector.
    2. Check continuity between VDC OFF switch connector terminals and ABS actuator and electric unit (control unit) connector terminal and/or ground.
    CONTINUITY REFERENCE CHART

    ABS actuator and electric unit (control unit) VDC OFF switch Continuity
    Connector Terminal Connector Terminal
    E41 31 M19 1 Existed
    CONTINUITY REFERENCE CHART

    ABS actuator and electric unit (control unit) - Continuity
    Connector Terminal
    E41 31 Ground Not existed
    CONTINUITY REFERENCE CHART

    VDC OFF switch - Continuity
    Connector Terminal
    M19 2 Ground Existed

    Is the inspection result normal? 

    YES: GO TO  3.

    NO: If the open or short in harness, repair or replace harness.

  3. CHECK COMBINATION METER

    Check if the indication and operation of combination meter are normal. Refer to "DIAGNOSIS DESCRIPTION ".

    Is the inspection result normal? 

    YES: Replace ABS actuator and electric unit (control unit).

    NO: Repair or replace combination meter.

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