ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION 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.INSPECT BATTERY VOLTAGE

        Standard:
        11 to 14 V

        If the voltage is below 11 V, recharge or replace the battery before proceeding.

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      4.CONNECT INTELLIGENT TESTER TO DLC3*

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        5.CHECK AND CLEAR DTC AND FREEZE FRAME DATA*

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          6.VISUAL INSPECTION

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            7.SETTING CHECK MODE DIAGNOSIS*
              Refer to the check mode procedure (Click here).

            NEXT


            8.PROBLEM SYMPTOM CONFIRMATION
              Refer to the road test (Click here).

              Result:
              Result
              		Proceed to
              Symptom does not occur
              		A
              Symptom occurs
              		B



            		B.
            GO TO STEP 10
            A


            9.SYMPTOM SIMULATION
              Refer to the electronic circuit inspection procedure (Click here).

            NEXT


            10.DTC CHECK*
              Refer to the DTC check / clear (Click here).

              Result:
              Result
              		Proceed to
              DTC is not output
              		A
              DTC is output
              		B



            		B.
            GO TO STEP 19
            A


            11.BASIC INSPECTION
              Refer to the automatic transmission fluid (Click here).Refer to the park / neutral position switch (Click here).Refer to the floor shift assembly (Click here).


            		NG.
            GO TO STEP 20
            OK


            12.MECHANICAL SYSTEM TEST
              Refer to the mechanical system test (Click here).


            		NG.
            GO TO STEP 17
            OK


            13.HYDRAULIC TEST
              Refer to the hydraulic test (Click here).


            		NG.
            GO TO STEP 17
            OK


            14.MANUAL SHIFTING TEST
              Refer to the manual shifting test (Click here).


            		NG.
            GO TO STEP 16
            OK


            15.PROBLEM SYMPTOMS TABLE CHAPTER 1
              Refer to the problem symptoms table (Click here).


            		NG.
            GO TO STEP 20
            OK


            16.PROBLEM SYMPTOMS TABLE CHAPTER 2
              Refer to the problem symptoms table (Click here).


            		NG.
            GO TO STEP 18
            OK


            17.PROBLEM SYMPTOMS TABLE CHAPTER 3
              Refer to the problem symptoms table (Click here).

            NG


            18.PART INSPECTION


              		NG.
              GO TO STEP20
              OK


              19.DTC CHART
                Refer to the diagnostic trouble code chart (Click here).

              NEXT


              20.CIRCUIT INSPECTION

                NEXT


                21.REPAIR OR REPLACE

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                  22.CONFIRMATION TEST

                    NEXT

                    END