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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Direct Adaptive Steering) (DTC/Circuit Diagnosis) (1 Of 2) >> DTC/Circuit Diagnosis >> DTC C13AA-00: Control Module >> EPS/DAST 3 >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK THE MOTOR CIRCUIT 
    1. Ignition switch OFF.
    2. Disconnect steering force control module connector.
    3. Check the continuity between steering force control module harness connector and ground.

      Steering force control module

      --

      Continuity

      Connector

      Terminal

      E153

      35

      Ground

      No

      36

      37

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace malfunctioning component.

  2. CHECK INTERMITTENT INCIDENT 
    1. Check enlarged contact spring of terminal. Refer to How to Check Terminal .
    2. Perform intermittent incident while turning steering wheel. Refer to Intermittent Incident .

    Is the inspection result normal?

    YES

    Replace steering force control module. Refer to Removal and Installation .

    NO

    Repair or replace malfunctioning component.