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Home >> Infiniti >> 2019 >> QX50 Essential, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (7 Of 12) >> DTC/Circuit Diagnosis >> DTC P11AB: VCR Control Module Circuit >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK VCR MOTOR 
    1. Turn ignition switch OFF.
    2. Disconnect VCR control module harness connector.
    3. Check the continuity between VCR control module harness connectors.

    VCR control module

    Continuity

    Terminal

    1

    2

    Existed

    14

    2

    14

    Is the inspection result normal?

    YES

    Replace VCR control module. Refer to Removal and Installation

    NO

    GO TO 2.

  2. CHECK VCR MOTOR CIRCUIT 
    1. Disconnect VCR motor harness connector.
    2. Check the continuity between VCR control module harness connectors and VCR motor harness connector.

      VCR control module

      VCR motor

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F90

      1

      F94

      2

      Existed

      2

      3

      14

      1

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace error-detected parts.

  3. CHECK VCR MOTOR 

    Refer to Component Inspection .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to intermittent incident .

    NO

    Repair or replace malfunctioning parts.