SFI SYSTEM (w/ Secondary Air Injection System) HOW TO PROCEED WITH TROUBLESHOOTING

The intelligent tester can be used in steps 3, 4, 5, 7, and 10.


  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 tool, inspect the DLC3.


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  4. CHECK DTC AND FREEZE FRAME DATA

    Tech Tips

    Record or print DTC and freeze frame data, if needed Click here.


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  5. CLEAR DTC AND FREEZE FRAME DATA

    Tech Tips

    Click here.


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  6. VISUAL INSPECTION


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  7. SETTING CHECK (TEST) MODE DIAGNOSIS

    Tech Tips

    Click here.


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  8. PROBLEM SYMPTOM CONFIRMATION

    Tech Tips

    If the engine does not start, perform steps 10 and 12 first.

    Result Proceed To
    Malfunction does not occur A
    Malfunction occurs B

    B

    GO TO STEP 10
    A

  9. SYMPTOM SIMULATION


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  10. DTC CHECK

    Tech Tips

    Click here.

    Result Proceed To
    Trouble code output A
    No code B

    B

    GO TO STEP 12
    A

  11. DTC CHART

    Tech Tips

    Click here.


    NEXT
    GO TO STEP 14

  12. BASIC INSPECTION

    Tech Tips

    Click here.

    Result Proceed To
    Malfunction parts not confirmed A
    Malfunction parts confirmed B

    B

    GO TO STEP 17
    A

  13. PROBLEM SYMPTOMS TABLE

    Tech Tips

    Click here.

    Result Proceed To
    Malfunction parts not confirmed A
    Malfunction parts confirmed B

    B

    GO TO STEP 17
    A

  14. CHECK ECM POWER SOURCE CIRCUIT


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  15. CIRCUIT INSPECTION

    Result Proceed To
    Malfunction not confirmed A
    Malfunction confirmed B

    B

    GO TO STEP 18
    A

  16. CHECK FOR INTERMITTENT PROBLEMS


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    GO TO STEP 18

  17. PARTS INSPECTION


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  18. IDENTIFICATION OF PROBLEM


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  19. ADJUSTMENT OR REPAIR


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  20. CONFIRMATION TEST


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    END