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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door & Lock -- G37 Coupe >> DTC/Circuit Diagnosis >> Trunk Lid Opener Actuator >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK TRUNK LID OPENER ACTUATOR INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect trunk lid lock assembly connector.
    3. Check voltage between trunk lid lock assembly harness connector and ground.
      TERMINALS VOLTAGE REFERENCE CHART

      (+) (-) Condition Voltage (V) (Approx.)
      Trunk lid lock assembly
      Connector Terminal
      B303 3 Ground Trunk lid opener switch Pressed 0 → Battery voltage → 0

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK TRUNK LID OPENER ACTUATOR CIRCUIT
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and trunk lid lock assembly harness connector.
      TERMINALS CONTINUITY REFERENCE CHART

      BCM Trunk lid lock assembly Continuity
      Connector Terminal Connector Terminal
      M120 23 B303 3 Existed
    3. Check continuity between BCM harness connector and ground.
      TERMINALS CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      M120 23 Not existed

      Is the inspection result normal? 

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

      NO: Repair or replace harness.

  3. CHECK TRUNK LID OPENER ACTUATOR GROUND CIRCUIT

    Check continuity between trunk lid lock assembly harness connector and ground.

    TERMINALS CONTINUITY REFERENCE CHART

    Trunk lid lock assembly Ground Continuity
    Connector Terminal
    B303 2 Existed

    Is the inspection result normal? 

    YES: Replace trunk lid lock assembly. Refer to "TRUNK LID LOCK : REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness.

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