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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 >> Spindle Motor >> LH >> 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. CHECK SPINDLE MOTOR INPUT SIGNAL

    1. Turn ignition switch OFF.
    2. Disconnect spindle unit LH connector.
    3. Check voltage between spindle unit LH harness connector and ground.
      (+) (-) Condition Voltage
      (Approx.)
      Spindle unit LH
      Connector Terminal
      B70 9 Ground Back door Auto open operation Battery voltage
      2 Auto close operation

    Is the inspection result normal?

    YES 

    Replace spindle unit LH. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 2. 

  2. CHECK SPINDLE MOTOR CIRCUIT

    1. Disconnect automatic back door control module connector.
    2. Check continuity between automatic back door control module harness connector and spindle unit LH harness connector.
      Automatic back door control module Spindle unit LH Continuity
      Connector Terminal Connector Terminal
      B56 27 B70 9 Yes
      34 2
    3. Check continuity between automatic back door control module harness connector and ground.
      Automatic back door control module Ground Continuity
      Connector Terminal
      B56 27 No
      34

    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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