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Home >> Infiniti >> 2022 >> Q60 Pure, RWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Diagnostics) >> Basic Inspection >> Direct Adaptive Steering >> Diagnosis And Repair Work Flow >> Work Flow >> Detailed Flow
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Detailed Flow

  1. INTERVIEW FROM THE CUSTOMER 

    Clarify customer complaints before inspection. First of all, perform an interview utilizing diagnostic work sheet and reproduce symptoms as well as fully understand it. Ask customer about his/her complaints carefully. Check symptoms by driving vehicle with customer, if necessary. Refer to Diagnostic Work Sheet .

    CAUTION: Customers are not professional. Never guess easily like "maybe the customer means that...," or "maybe the customer mentions this symptom".

    GO TO 2.

  2. CHECK SYMPTOM 

    Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by interview. Also check that the symptom is not caused by protection function. Refer to Protection Function .

    CAUTION: When the symptom is caused by normal operation, fully inspect each portion and obtain the understanding of customer that the symptom is not caused by a malfunction.

    GO TO 3.

  3. PERFORM SELF-DIAGNOSIS 

    SYMBOL With CONSULT

    Perform self-diagnosis for "EPS/DAST 3", "DAST 1" and "DAST 2".

    Is any DTC detected?

    YES

    Record or print DTC and freeze frame data. GO TO 4.

    NO

    GO TO 6.

  4. RECHECK SYMPTOM 

    SYMBOL With CONSULT

    1. Erase self-diagnostic results for "EPS/DAST 3", "DAST 1" or "DAST 2".
    2. Perform confirmation procedures for the error detected system.
      NOTE: If some DTCs are detected at the same time, determine the order for performing the diagnosis based on following.

    Is any DTC detected?

    YES

    GO TO 5.

    NO

    Check harness and connectors based on the information obtained by interview.

    • Check enlarged contact spring of terminal. Refer to Inspection .
    • Perform intermittent incident while turning steering wheel. Refer to Inspection .
  5. REPAIR OR REPLACE ERROR-DETECTED PARTS 
    1. Repair or replace error-detected parts.
    2. Reconnect part or connector after repairing or replacing.
    3. When DTC is detected, erase self-diagnostic results for "EPS/DAST 3", "DAST 1" or "DAST 2".

    GO TO 7.

  6. IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS 

    Estimate error-detected system based on symptom diagnosis and perform inspection.

    Can the error-detected system be identified?

    YES

    GO TO 7.

    NO

    Check harness and connectors based on the information obtained by interview.

    • Check enlarged contact spring of terminal. Refer to Inspection .
    • Perform intermittent incident while turning steering wheel. Refer to Inspection .
  7. FINAL CHECK 

    SYMBOL With CONSULT

    1. Check the reference value for steering force control module, steering angle main control module or steering angle sub control module.
    2. Recheck the symptom and check that symptom is not reproduced on the same conditions.

    Is the symptom reproduced?

    YES

    GO TO 3.

    NO

    INSPECTION END

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