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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Door & Lock (DTC/Circuit Diagnosis) (Except Hybrid)) >> DTC/Circuit Diagnosis >> DTC B2423: Automatic Back Door Motor Operation Time >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. ERASE DTC

    1. At least 180 seconds are passed after automatic back door operation is inhibited.
    2. Erase DTC, and then repeat "PERFORM DTC CONFIRMATION PROCEDURE".

    Is DTC detected?

    YES 

    GO TO STEP 2  .

    NO 

    Inspection End.

  2. CHECK SPINDLE MOTOR CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect automatic back door control module and spindle unit connector.
    3. Check continuity between automatic back door control module harness connector and spindle unit harness connector.
      Automatic back door control module Spindle unit Continuity
      Connector Terminal Connector Terminal
      B56 27 LH B70 9 Yes
      34 2
      29 RH B162 9
      36 2
    4. Check continuity between automatic back door control module harness connector and ground.
      Automatic back door control module Ground Continuity
      Connector Terminal
      B56 27 No
      29
      34
      36

    Is the inspection result normal?

    YES 

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

    NO 

    Repair or replace harness.

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