LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Steering >> Steering Control Systems >> Steering Control System (Direct Adaptive Steering) (DTC/Circuit Diagnosis) (2 Of 2) >> DTC/Circuit Diagnosis >> DTC C13D0-00: ALC Function Request Signal >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

  1. PERFORM CHASSIS CONTROL MODULE SELF-DIAGNOSIS 

    SYMBOL CONSULT

    1. Ignition switch ON.
    2. Select "Self Diagnostic Result" MODE of "CHASSIS CONTROL".

    Is any DTC detected?

    YES

    Check the DTC. Refer to DTC Index .

    NO

    GO TO 2.

  2. PERFORM SELF-DIAGNOSIS 

    SYMBOL CONSULT

    1. Ignition switch ON.
    2. Erase "Self Diagnostic Result" MODE of "DAST 1".
    3. Ignition switch OFF and wait for at least 10 seconds.
    4. Ignition switch ON.
    5. Select "Self Diagnostic Result" MODE of "DAST 1".

    Is DTC "C13D0-00" detected?

    YES

    GO TO 3.

    NO

  3. CHECK TERMINAL 
    1. Ignition switch OFF.
    2. Disconnect steering angle main control module connector and then check steering angle main control module pin terminals for damage or loose connection with harness connector.
    3. Disconnect chassis control module connector and then check chassis control module pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES

    Replace steering angle main control module. Refer to Removal and Installation .

    NO

    Repair or replace malfunctioning component.