SFI SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS


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  3. CONNECT INTELLIGENT TESTER TO DLC3*

    Tech Tips

    If the display indicates a communication fault in the tester, inspect the DLC3.


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  4. CHECK FOR DTC AND FREEZE FRAME DATA* Click here Click here

    Tech Tips

    Record or print DTCs and freeze frame data, if necessary.


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  5. CLEAR DTC AND FREEZE FRAME DATA* Click here


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  6. CONDUCT VISUAL INSPECTION


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  7. SET CHECK MODE DIAGNOSIS* Click here


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  8. CONFIRM PROBLEM SYMPTOMS

    Tech Tips

    If the engine does not start, first perform the "CHECK FOR DTC" procedures and "CONDUCT BASIC INSPECTION" procedures below.

    Result
    Result Proceed to
    Malfunction does not occur A
    Malfunction occurs B

    B

    GO TO STEP 10
    A

  9. SIMULATE SYMPTOMS Click here


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  10. CHECK FOR DTC* Click here

    Result
    Result Proceed to
    Trouble code A
    No code B

    B

    GO TO STEP 12
    A

  11. REFER TO DTC CHART Click here


    NEXT
    GO TO STEP 14

  12. CONDUCT BASIC INSPECTION Click here

    Result
    Result Proceed to
    Malfunctioning parts not confirmed A
    Malfunctioning parts confirmed B

    B

    GO TO STEP 17
    A

  13. REFER TO PROBLEM SYMPTOMS TABLE Click here

    Result
    Result Proceed to
    Malfunctioning circuit confirmed A
    Malfunctioning parts confirmed B

    B

    GO TO STEP 17
    A

  14. CHECK ECM POWER SOURCE CIRCUIT Click here


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  15. CONDUCT CIRCUIT INSPECTION

    Result
    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    B

    GO TO STEP 18
    A

  16. CHECK FOR INTERMITTENT PROBLEMS Click here


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    GO TO STEP 18

  17. CONDUCT PARTS INSPECTION


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  18. IDENTIFY PROBLEM


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  19. ADJUST AND/OR REPAIR


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  20. CONDUCT CONFIRMATION TEST


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    END