SFI SYSTEM (w/ Dual VVT-i) HOW TO PROCEED WITH TROUBLESHOOTING

*: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS


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  3. CONNECT GTS TO DLC3*

    Tech Tips

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

    When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.


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  4. CHECK DTC AND FREEZE FRAME DATA*


    1. Check for DTCs Click here and freeze frame data.

      Tech Tips

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


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  5. CLEAR DTC AND FREEZE FRAME DATA*


    1. Clear the DTCs and freeze frame data Click here.


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  6. CONDUCT VISUAL INSPECTION


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  7. SELECT CHECK MODE DIAGNOSIS*


    1. Switch the ECM from normal mode to check mode.

      Tech Tips

      Refer to Check Mode Procedure Click here.


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  8. CONFIRM PROBLEM SYMPTOMS


    1. Confirm problem symptoms.

      Tech Tips


      • Refer to Problem Symptoms Table Click here.

      • If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

      Result Proceed To
      Malfunction does not occur A
      Malfunction occurs B

      B
      A
  9. SIMULATE SYMPTOMS


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  10. DTC CHECK*


    1. Check for DTCs.

      Tech Tips

      Refer to DTC Check / Clear Click here.

      Result Proceed To
      Trouble code output A
      No code B

      B
      A
  11. REFER TO DTC CHART

    Tech Tips

    Refer to Diagnostic Trouble Code Chart Click here.


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  12. CONDUCT BASIC INSPECTION


    1. Conduct basic inspection.

      Tech Tips

      Refer to Basic Inspection Click here.

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

      B
      A
  13. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips

    Refer to Problem Symptoms Table Click here.

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

    B
    A
  14. CHECK ECM POWER SOURCE CIRCUIT


    1. Check the ECM power source circuit.

      Tech Tips

      Refer to ECM Power Source Circuit Click here.


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  15. CIRCUIT INSPECTION

    Result Proceed To
    Malfunction not confirmed A
    Malfunction confirmed B

    B
    A
  16. CHECK FOR INTERMITTENT PROBLEMS


    1. Check for intermittent problems.

      Tech Tips

      Refer to Check for Intermittent Problems Click here.


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  17. CONDUCT PARTS INSPECTION


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  18. IDENTIFICATION OF PROBLEM


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  19. ADJUSTMENT AND/OR REPAIR


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  20. CONDUCT CONFIRMATION TEST


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