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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Door & Lock (Except Hybrid) >> DTC/Circuit Diagnosis >> Automatic Back Door Warning Buzzer >> Diagnosis Procedure

Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

  1. CHECK BACK DOOR WARNING CHIME POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect back door warning chime connector.
    3. Check voltage between back door warning chime harness connector and ground.
      (+) (-) Voltage (Approx.)
      Back door warning chime
      Connector Terminal
      B402 1 Ground Battery voltage

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK BACK DOOR WARNING CHIME OUTPUT SIGNAL CIRCUIT 
    1. Disconnect automatic back door control module connector.
    2. Check continuity between automatic back door control module harness connector and back door warning chime harness connector.
      Automatic back door control module Back door warning chime Continuity
      Connector Terminal Connector Terminal
      B56 37 B402 1 Yes
    3. Check continuity between automatic back door control module harness connector and ground.
      Automatic back door control module Ground Continuity
      Connector Terminal
      B56 37 No

      Is the inspection result normal? 

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

      NO: Repair or replace harness.

  3. CHECK BACK DOOR WARNING CHIME GROUND CIRCUIT 

    Check continuity between back door warning chime harness connector and ground.

    Back door warning chime Ground Continuity
    Connector Terminal
    B402 2 Yes

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace harness.

  4. CHECK BACK DOOR WARNING CHIME 

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Replace back door warning chime. Refer to "REMOVAL AND INSTALLATION ".

  5. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    : Inspection End.