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Home >> Infiniti >> 2011 >> FX50 >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Door & Lock - With Automatic Back Door -- FX35/FX50 >> DTC/Circuit Diagnosis >> Automatic Back Door Close Switch >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK AUTOMATIC BACK DOOR CLOSE SWITCH INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect automatic back door close switch connector.
    3. Check voltage between automatic back door close switch harness connector and ground.
      VOLTAGE REFERENCE CHART

      (+) (-) Voltage (Approx.)
      Automatic back door close switch
      Connector Terminal
      D113 1 Ground 16 V

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK AUTOMATIC BACK DOOR CLOSE SWITCH CIRCUIT
    1. Disconnect automatic back door control unit connector.
    2. Check continuity between automatic back door control unit harness connector and automatic back door close switch harness connector.
      CONTINUITY REFERENCE CHART

      Automatic back door control unit Automatic back door close switch Continuity
      Connector Terminal Connector Terminal
      B207 23 D113 1 Existed
    3. Check continuity between automatic back door control unit harness connector and ground.
      CONTINUITY REFERENCE CHART

      Automatic back door control unit Ground Continuity
      Connector Terminal
      B207 23 Not existed

      Is the inspection result normal? 

      YES: Replace automatic back door control unit. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  3. CHECK AUTOMATIC BACK DOOR CLOSE SWITCH GROUND CIRCUIT

    Check continuity between automatic back door close switch harness connector and ground.

    CONTINUITY REFERENCE CHART

    Automatic back door close switch Ground Continuity
    Connector Terminal
    D113 2 Existed

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace harness.

  4. CHECK AUTOMATIC BACK DOOR CLOSE SWITCH

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Replace automatic back door close switch.

  5. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END