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Home >> Infiniti >> 2011 >> FX35 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Door & Lock (Without Automatic Back Door) -- FX35/FX50 >> DTC/Circuit Diagnosis >> Back Door Request Switch >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BCM OUTPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect back door opener request switch.
    3. Check signal between back door opener request switch harness connector and ground.
      SIGNAL REFERENCE CHART

      (+) (-) Signal (Reference value)
      Back door opener request switch
      Connector Terminal
      D116 1 Ground
      G04888190

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK BACK DOOR OPENER REQUEST SWITCH CIRCUIT
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and back door opener request switch harness connector.
      CONTINUITY REFERENCE CHART

      BCM Back door opener request switch Continuity
      Connector Terminal Connector Terminal
      M121 61 D116 1 Existed
    3. Check continuity between BCM harness connector and ground.
      CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      M121 61 Not existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  3. CHECK BACK DOOR OPENER REQUEST SWITCH GROUND CIRCUIT

    Check continuity between back door opener request switch harness connector and ground.

    CONTINUITY REFERENCE CHART

    Back door opener request switch assembly Ground Continuity
    Connector Terminal
    D116 2 Existed

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace harness.

  4. CHECK BACK DOOR OPENER REQUEST SWITCH

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Replace back door opener request switch. Refer to "REMOVAL AND INSTALLATION ".

  5. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END