SFI SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

The intelligent tester is used in steps 2, 3, 4, 6 and 9.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. CONNECT INTELLIGENT TESTER TO DLC3

    Tech Tips

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


    NEXT

  3. CHECK DTC AND FREEZE FRAME DATA


    1. Check for DTC(s) and freeze frame data Click here.

      Tech Tips

      Record or print the DTCs and freeze frame data, if needed.


      NEXT

  4. CLEAR DTC AND FREEZE FRAME DATA


    NEXT

  5. CONDUCT VISUAL INSPECTION


    NEXT

  6. SET CHECK MODE DIAGNOSIS


    NEXT

  7. CONFIRM PROBLEM SYMPTOMS

    Tech Tips

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

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

    B

    GO TO STEP 10
    A

  8. SIMULATE SYMPTOMS


    NEXT

  9. CHECK FOR DTCS


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      Trouble code A
      No code B

      B

      GO TO STEP 12
      A

  10. REFER TO DTC CHART


    NEXT
    GO TO STEP 14

  11. CONDUCT BASIC INSPECTION

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

    B

    GO TO STEP 17
    A

  12. REFER TO PROBLEM SYMPTOMS TABLE

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

    B

    GO TO STEP 17
    A

  13. CHECK ECM POWER SOURCE CIRCUIT


    NEXT

  14. CONDUCT CIRCUIT INSPECTION

    Result
    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    B

    GO TO STEP 18
    A

  15. CHECK FOR INTERMITTENT PROBLEMS


    NEXT
    GO TO STEP 18

  16. CONDUCT PARTS INSPECTION


    NEXT

  17. IDENTIFY PROBLEM


    NEXT

  18. ADJUST AND/OR REPAIR


    NEXT

  19. CONDUCT CONFIRMATION TEST


    NEXT
    END