ECD SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

for Preparation Click here


HINT:
*: 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 THE DLC3*

        HINT:
        If the display indicates a communication fault in the tester, inspect the DLC3.
        When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first (Click here).


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      4.CHECK DTC AND FREEZE FRAME DATA*

        HINT:
        Record or print DTCs and freeze frame data, if necessary.
        1. Check the DTC (Click here).
        1. Check the freeze frame data (Click here).


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      5.CLEAR DTC AND FREEZE FRAME DATA* (Click here)

        NEXT


        6.CONDUCT VISUAL INSPECTION

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          7.CONFIRM PROBLEM SYMPTOMS

            HINT:
            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 occur
            		B


          		B.
          Go to step 9
          A


          8.SIMULATE SYMPTOMS

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            9.CHECK FOR DTC* (Click here)
              Result 
              Result
              		Proceed to
              Trouble code
              		A
              No trouble code
              		B


            		B.
            Go to step 11
            A


            10.REFER TO DTC CHART (Click here)

              NEXT

              Go to step 13


              11.CONDUCT BASIC INSPECTION
                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 (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 (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 (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

                        NEXT


                        19.CONDUCT CONFIRMATION TEST

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                          END