SFI 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.


      NEXT


      4.CHECK DTC AND FREEZE FRAME DATA*
        Refer to the DTC check / clear (Click here).

        HINT:
        Record or print DTCs and freeze frame data if needed.


      NEXT


      5.CONDUCT VISUAL INSPECTION

        NEXT


        6.SET CHECK MODE DIAGNOSIS*
          Refer to the check mode procedure (Click here).

        NEXT


        7.CONFIRM PROBLEM SYMPTOMS

          HINT:
          If the engine does not start, first perform the "check DTC" procedures and "conduct basic inspection" procedures below.
          Result
          		Proceed to
          Malfunction does not occur
          		A
          Malfunction occurs
          		B



        		B.
        GO TO STEP 10
        A


        8.SIMULATE SYMPTOMS

          NEXT


          9.CHECK DTC
            Refer to the DTC check / clear (Click here).
            Result
            		Proceed to
            Malfunction code
            		A
            No code
            		B


          		B.
          GO TO STEP 12
          A


          10.REFER TO DTC CHART
            Refer to the diagnostic trouble code chart (Click here).

          NEXT

          GO TO STEP 14


          11.CONDUCT BASIC INSPECTION
            Refer to the basic inspection (Click here).
            Result
            		Proceed to
            Malfunctioning parts not confirmed
            		A
            Malfunctioning parts confirmed
            		B


          		B.
          GO TO STEP 17
          A


          12.REFER TO PROBLEM SYMPTOMS TABLE
            Refer to the problem symptoms table (Click here).
            Result
            		Proceed to
            Malfunctioning circuit confirmed
            		A
            Malfunctioning parts confirmed
            		B


          		B.
          GO TO STEP 17
          A


          13.CHECK ECM POWER SOURCE CIRCUIT
            Refer to the ECM power source circuit (Click here).

          NEXT


          14.CONDUCT CIRCUIT INSPECTION
            Result
            		Proceed to
            Malfunction not confirmed
            		A
            Malfunction confirmed
            		B


          		B.
          GO TO STEP 18
          A


          15.CHECK FOR INTERMITTENT PROBLEMS
            Refer to the check for intermittent problems (Click here).

          NEXT

          GO TO STEP 18


          16.CONDUCT PARTS INSPECTION

            NEXT


            17.IDENTIFY PROBLEM

              NEXT


              18.ADJUST AND/OR REPAIR

                NEXT


                19.CONDUCT CONFIRMATION TEST

                  NEXT

                  END