ECD SYSTEM (for Swirl Control Valve) HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS


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  3. CONNECT GTS TO THE 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 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*


    1. Clear DTCs and freeze frame data Click here.


      NEXT

  6. CONDUCT VISUAL INSPECTION


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  7. 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 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 9
      A

  8. SIMULATE SYMPTOMS

    Tech Tips

    Refer to Symptom Simulation Click here.


    NEXT

  9. CHECK FOR DTC*


    1. Check for DTCs.

      Tech Tips

      Refer to DTC Check / Clear Click here.

      Result
      Result Proceed to
      Trouble code A
      No trouble code B

      B

      Go to step 11
      A

  10. REFER TO DTC CHART


    1. Refer to Diagnostic Trouble Code Chart Click here.


      NEXT
      Go to step 13

  11. CONDUCT BASIC INSPECTION


    1. Conduct Basic Inspection Click here.

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

      B

      Go to step 16
      A

  12. REFER TO PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.

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

      B

      Go to step 16
      A

  13. CHECK ECM POWER SOURCE CIRCUIT


    1. Check the ECM power source circuit.

      Tech Tips

      Refer to the ECM Power Source Circuit Click here.


      NEXT

  14. CONDUCT CIRCUIT INSPECTION

    Result
    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    B

    Go to step 17
    A

  15. CHECK FOR INTERMITTENT PROBLEMS


    1. Check for intermittent problems.

      Tech Tips

      Refer to Check for Intermittent Problems Click here.


      NEXT
      Go to step 17

  16. CONDUCT PARTS INSPECTION


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  17. IDENTIFY PROBLEM


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  18. ADJUST AND/OR REPAIR


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  19. CONDUCT CONFIRMATION TEST


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    END