SFI SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

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HINT:
*: Use the intelligent tester.



1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    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*

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


      NEXT


      5.CLEAR DTC AND FREEZE FRAME DATA*

        NEXT


        6.CONDUCT VISUAL INSPECTION

          NEXT


          7.SET CHECK MODE DIAGNOSIS*

            NEXT


            8.CONFIRM PROBLEM SYMPTOMS

              HINT:
              If the engine does not start, perform steps 10 and 12 first.
              Result
              		Proceed to
              Malfunction does not occur
              		A
              Malfunction occurs
              		B



            		B.
            GO TO STEP 10
            A


            9.SIMULATE SYMPTOMS

              NEXT


              10.CHECK DTC*
                Result
                		Proceed to
                Malfunction code
                		A
                No code
                		B


              		B.
              GO TO STEP 12
              A


              11.REFER TO DTC CHART

                NEXT

                GO TO STEP 14


                12.CONDUCT BASIC INSPECTION
                  Result
                  		Proceed to
                  Malfunctioning parts not confirmed
                  		A
                  Malfunctioning parts confirmed
                  		B


                		B.
                GO TO STEP 17
                A


                13.REFER TO PROBLEM SYMPTOMS TABLE
                  Result
                  		Proceed to
                  Malfunctioning circuit confirmed
                  		A
                  Malfunctioning parts confirmed
                  		B


                		B.
                GO TO STEP 17
                A


                14.CHECK ECM POWER SOURCE CIRCUIT

                  NEXT


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


                  		B.
                  GO TO STEP 18
                  A


                  16.CHECK FOR INTERMITTENT PROBLEMS

                    NEXT

                    GO TO STEP 18


                    17.CONDUCT PARTS INSPECTION

                      NEXT


                      18.IDENTIFY PROBLEM

                        NEXT


                        19.ADJUST, REPAIR OR REPLACE

                          NEXT


                          20.CONDUCT CONFIRMATION TEST

                            NEXT

                            END