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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 >> Spindle Motor >> LH >> LH: Diagnosis Procedure

LH: Diagnosis Procedure

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 16.75 - 8.5 V
      2 Auto close operation

      Is the inspection result normal? 

      YES: Replace spindle unit LH. Refer to "SPINDLE UNIT: REMOVAL AND INSTALLATION ".

      NO: GO TO 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.