LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door & Lock -- G37 Coupe >> DTC/Circuit Diagnosis >> Door Key Cylinder Switch >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect driver side door lock assembly connector.
    3. Check voltage between driver side door lock assembly harness connector and ground.
      TERMINALS VOLTAGE REFERENCE CHART

      (+) (-) Voltage (V) (Approx.)
      Driver side door lock assembly
      Connector Terminal
      D15 5 Ground 5
      6

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK DOOR KEY CYLINDER SWITCH SIGNAL CIRCUIT
    1. Disconnect power window main switch connector.
    2. Check continuity between power window main switch harness connector and driver side door lock assembly harness connector.
      TERMINALS CONTINUITY REFERENCE CHART

      Power window main switch Driver side door lock assembly Continuity
      Connector Terminal Connector Terminal
      D8 6 D15 6 Existed
      7 5
    3. Check continuity between power window main switch harness connector and ground.
      TERMINALS CONTINUITY REFERENCE CHART

      Power window main switch Ground Continuity
      Connector Terminal
      D8 6 Not existed
      7

      Is the inspection result normal? 

      YES: Replace power window main switch. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

    Check continuity between driver side door lock assembly harness connector and ground.

    TERMINALS CONTINUITY REFERENCE CHART

    Driver side door lock assembly Ground Continuity
    Connector Terminal
    D15 4 Existed

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace harness.

  4. CHECK DOOR KEY CYLINDER SWITCH

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Replace driver side door lock assembly. Refer to "DOOR LOCK : REMOVAL AND INSTALLATION ".

  5. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END