ECD SYSTEM (w/ DPF) HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the intelligent tester.


  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 with the tester, inspect the DLC3.


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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.


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  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 DTC" procedure and "Conduct Basic Inspection" procedure below.

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

      B

      SIMULATE SYMPTOMS
      A

  8. CHECK 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 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.


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  11. CONDUCT PARTS INSPECTION


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  12. IDENTIFY PROBLEM


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  13. ADJUST AND/OR REPAIR


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  14. CONFIRMATION TEST


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    END