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Home >> Infiniti >> 2021 >> QX50 Essential, FWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Electric Power Steering) (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC C1143: Steering Angle Sensor >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK STEERING ANGLE SENSOR CIRCUIT 

    Check steering angle sensor circuit. Refer to Diagnosis Procedure .

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace malfunctioning components.

  2. CHECK TERMINALS AND HARNESS CONNECTORS 

    Check the EPS control unit pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES

    EPS control unit is malfunctioning. Replace steering gear assembly. Refer to Removal and Installation .

    NO

    Repair or replace malfunctioning component.

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