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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 to understand them fully. Ask customer about his/her complaints carefully. Check symptoms by driving vehicle with customer, if necessary.

    CAUTION: Customers are not professional. Never make assumptions like "maybe the customer means that...," or "maybe the customer mentioned 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 Diagnostic Result" of "EPS".

    Is any DTC detected?

    YES

    Record or print self-diagnostic results. GO TO 4.

    NO

    GO TO 6.

  4. RECHECK SYMPTOM 

    SYMBOL With CONSULT

    1. Erase "Self Diagnostic Result" of "EPS".
    2. Perform DTC confirmation procedures for the malfunctioning system.
    NOTE: If some DTCs are detected at the same time, determine the order for performing the diagnosis based on DTC Inspection Priority Chart .

    Is any DTC detected?

    YES

    GO TO 5.

    NO

    Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident .

  5. REPAIR OR REPLACE MALFUNCTIONING COMPONENT 
    • Repair or replace malfunctioning component.
    • Reconnect part or connector after repairing or replacing.
    • When DTC is detected, erase "Self Diagnostic Result" of "EPS".

    GO TO 7.

  6. IDENTIFY MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS 

    Identify malfunctioning system based on symptom diagnosis and perform inspection.

    Can the malfunctioning system be identified?

    YES

    GO TO 7.

    NO

    Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident .

  7. FINAL CHECK 

    SYMBOL With CONSULT

    1. Check the reference value for EPS control unit.
    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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