ECD SYSTEM (for DPF) HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    NEXT

  3. CONNECT INTELLIGENT TESTER TO DLC3

    Tech Tips

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


    NEXT

  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.


      NEXT

  5. CLEAR DTC AND FREEZE FRAME DATA*


    1. Clear DTCs and freeze frame data Click here.


      NEXT

  6. VISUAL INSPECTION


    NEXT

  7. CONFIRM PROBLEM SYMPTOMS

    Tech Tips

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

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

    B

    SIMULATE SYMPTOMS
    A

  8. CHECK DTC*

    Tech Tips

    Refer to DTC Check / Clear Click here.

    Result
    Result Proceed to
    Trouble code A
    No trouble code B

    B

    Go to step 9
    A
    REFER TO DTC CHART

  9. 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 11
      A

  10. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips


    • Refer to Problem Symptoms Table Click here.

    • Also, refer to the inspection procedure for the problem symptom.


    NEXT

  11. PARTS INSPECTION


    NEXT

  12. IDENTIFY PROBLEM


    NEXT

  13. ADJUST AND/OR REPAIR


    NEXT

  14. CONFIRMATION TEST


    NEXT
    END