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Home >> Infiniti >> 2024 >> Q50 Luxe, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (DTCS) (1 Of 2) >> DAST 1 (Steering Angle Main Control Module) >> C13AA-00 Control Module >> DTC Diagnosis Procedure
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DTC Diagnosis Procedure

  1. CHECK THE MOTOR CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle main control module and steering angle main motor harness connector.
    3. Check the continuity between control module harness connector and motor harness connector.
      Steering angle main control module Steering angle main motor Continuity
      Connector Terminal Connector Terminal
      E97 35 E88*1
      E105*2
      1 Existed
      36 3
      37 2

      *1: 2WD models

      *2: AWD models

    4. Check the continuity between control module harness connector and ground.
      Steering angle main control module - Continuity
      Connector Terminal
      E97 35 Ground Not existed
      36
      37

    Is the inspection result normal?

    YES>>

    GO TO 2.

    NO>>

    Repair / replace harness or connector.

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

    Is the inspection result normal?

    YES>>

    Replace steering angle main control module. Refer to STEERING ANGLE MAIN CONTROL MODULE : Removal and Installation .

    NO>>

    Repair / replace harness, connector, or terminal.