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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Direct Adaptive Steering) (DTC/Circuit Diagnosis) (1 Of 2) >> DTC/Circuit Diagnosis >> C13AA-00 Control Module >> DAST 1 >> DTC Diagnosis Procedure
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DTC Diagnosis Procedure

  1. CHECK THE MOTOR CIRCUIT 
      1. Ignition switch OFF.
      2. Disconnect steering angle main control module connector and steering angle main motor connector.
      3. Check the continuity between steering angle main control module harness connector and steering angle main motor harness connector.
        Steering angle main control module Steering angle main motor Continuity
        Connector Terminal Connector Terminal
        E230 35 E237 2 Yes
        36 3
        37 1
      4. Check the continuity between steering angle main control module harness connector and ground.
        Steering angle main control module - Continuity
        Connector Terminal
        E230 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 angle main control module. Refer to Removal and Installation .

    NO>>

    Repair or replace malfunctioning component.