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Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door & Lock (Diagnostic Trouble Codes (DTCS), Symptom Tests And R & I) >> DTC/Circuit Diagnosis >> Back Door Request Switch >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BACK DOOR REQUEST SWITCH INPUT SIGNAL

    1. Turn ignition switch OFF.
    2. Disconnect back door opener switch assembly connector.
    3. Check voltage between back door opener switch assembly harness connector and ground.
      (+) (-) Voltage
      (Approx.)
      Back door opener switch assembly
      Connector Terminal
      D154 4 Ground 12 V

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 2  .

  2. CHECK BACK DOOR REQUEST SWITCH CIRCUIT

    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and back door opener switch assembly harness connector.
      BCM Back door opener switch assembly Continuity
      Connector Terminal Connector Terminal
      M69 51 D154 4 Existed
    3. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M69 51 Not existed

    Is the inspection result normal?

    YES 

    Replace BCM. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness.

  3. CHECK BACK DOOR REQUEST SWITCH GROUND CIRCUIT

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

    Back door opener switch assembly Ground Continuity
    Connector Terminal
    D154 3 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace harness.

  4. CHECK BACK DOOR REQUEST SWITCH

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Replace back door opener switch assembly.

  5. CHECK INTERMITTENT INCIDENT

    Refer to INTERMITTENT INCIDENT .

    INSPECTION END