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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Transfer Case >> Transfer Case (DTCS) >> All Mode AWD/4WD (AWD Control Unit) >> DTC C1203: Abs Actuator And Electric Unit (Control Unit) >> DTC Diagnosis Procedure >> AWD models
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AWD models

  1. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS 

    SYMBOL With CONSULT

    Perform self-diagnosis for "ABS".

    Is any DTC detected?

    YES

    Check the DTC. Refer to DTC Index .

    NO

    GO TO 2.

  2. CHECK TERMINALS AND HARNESS CONNECTORS 

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

    Is inspection result normal?

    YES

    After turning the ignition switch OFF, perform DTC confirmation procedure again. When DTC "C1203" is detected, Replace AWD control unit. Refer to AWD CONTROL UNIT : Removal & Installation .

    NO

    Repair or replace error-detected parts.