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Home >> Infiniti >> 2017 >> Q60 Sport, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Direct Adaptive Steering) (DTCS) >> DTC / Circuit Diagnosis >> DTC C13D4-00: Control Module >> EPS/DAST 3 >> Diagnosis Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK THE ANGLE SENSOR

    Check the force motor angle sensor. Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Force motor angle sensor is malfunction. Replace steering column assembly. Refer to REMOVAL AND INSTALLATION .

  2. CHECK THE SENSOR CIRCUIT

    1. Disconnect steering force control module and force motor angle sensor harness connector.
    2. Check the continuity between control module harness connector and angle sensor harness connector.
      Steering force control module Force motor angle sensor Continuity
      Connector Terminal Connector Terminal
      M71 10 M73 1 Existed
      11 5
      6 4
      5 8
      4 2
      2 6
    3. Check the continuity between control module harness connector and ground.
      Steering force control module - Continuity
      Connector Terminal
      M71 10 Ground Not existed
      11
      6
      5
      4
      2

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace error - detected part.

  3. 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 error - detected part.