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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door & Lock (Except Hybrid) >> DTC/Circuit Diagnosis >> Automatic Back Door Main Switch >> Diagnosis Procedure

Diagnosis Procedure

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

  1. CHECK AUTOMATIC BACK DOOR MAIN SWITCH INPUT SIGNAL 
    1. Turn ignition switch OFF.
    2. Disconnect automatic back door main switch connector.
    3. Check voltage between automatic back door main switch harness connector and ground.
      (+) (-) Voltage (Approx.)
      Automatic back door main switch
      Connector Terminal
      M185 1 Ground 16 - 8 V

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK AUTOMATIC BACK DOOR MAIN SWITCH CIRCUIT 
    1. Disconnect automatic back door control module connector.
    2. Check continuity between automatic back door control module harness connector and automatic back door main switch harness connector.
      Automatic back door control module Automatic back door main switch Continuity
      Connector Terminal Connector Terminal
      B55 10 M185 1 Yes
    3. Check continuity between automatic back door control module connector and ground.
      Automatic back door control module Ground Continuity
      Connector Terminal
      B55 10 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 AUTOMATIC BACK DOOR MAIN SWITCH GROUND CIRCUIT 

    Check continuity between automatic back door main switch connector and ground.

    Automatic back door main switch Ground Continuity
    Connector Terminal
    M185 3 Yes

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace harness.

  4. CHECK AUTOMATIC BACK DOOR MAIN SWITCH 

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Replace automatic back door main switch. Refer to "REMOVAL AND INSTALLATION ".

  5. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    : Inspection End.