Automatic Transmission System How To Proceed With Troubleshooting

Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
A340F Automatic Transmission Transaxle. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. INSPECT BATTERY VOLTAGE

  4. CONNECT INTELLIGENT TESTER TO DLC3*

  5. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

  6. VISUAL INSPECTION

  7. SETTING CHECK MODE DIAGNOSIS*

  8. PROBLEM SYMPTOM CONFIRMATION

  9. SYMPTOM SIMULATION

  10. DTC CHECK*

  11. BASIC INSPECTION

  12. MECHANICAL SYSTEM TESTS

  13. HYDRAULIC TEST

  14. MANUAL SHIFTING TEST

  15. PROBLEM SYMPTOMS TABLE CHAPTER 1

  16. PROBLEM SYMPTOMS TABLE CHAPTER 2

  17. PART INSPECTION

  18. DTC CHART

  19. CIRCUIT INSPECTION

  20. IDENTIFICATION OF PROBLEM

  21. REPAIR OR REPLACE

  22. CONFIRMATION TEST

Automatic Transmission System -- How To Proceed With Troubleshooting


HINT:
  1. The TCM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
  2. *: Use the intelligent tester.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS

    1. Refer to How To Troubleshoot ECU Controlled Systems in the Introduction section (HILUX_TGN26 RM000004QR7002X.html).


    NEXT


    3.INSPECT BATTERY VOLTAGE
      Standard voltage:
      11 to 14 V
      If the voltage is below 11 V, recharge or replace the battery before proceeding.

    NEXT


    4.CONNECT INTELLIGENT TESTER TO DLC3*

      NEXT


      5.CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

      1. Refer to DTC Check / Clear (HILUX_TGN26 RM000000W770O2X.html).


      NEXT


      6.VISUAL INSPECTION

        NEXT


        7.SETTING CHECK MODE DIAGNOSIS*

        1. Refer to Check Mode Procedure (HILUX_TGN26 RM000000W780KUX.html).


        NEXT


        8.PROBLEM SYMPTOM CONFIRMATION

        1. Refer to Road Test (HILUX_TGN26 RM000000W790JFX.html).

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



        		B.
        GO TO STEP 10
        A


        9.SYMPTOM SIMULATION

        1. Refer to Electronic Circuit Inspection Procedure (HILUX_TGN26 RM000004QR6001X.html).


        NEXT


        10.DTC CHECK*

        1. Refer to DTC Check / Clear (HILUX_TGN26 RM000000W770O2X.html).

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



        		B.
        GO TO STEP 18
        A


        11.BASIC INSPECTION

        1. Refer to Automatic Transmission Fluid (HILUX_TGN26 RM0000014P801LX.html).

        2. Refer to Park/Neutral Position Switch (HILUX_TGN26 RM0000010ND04WX.html).

        3. Refer to Shift Lever Assembly (HILUX_TGN26 RM000002M9A052X.html).



        		NG.
        GO TO STEP 21
        OK


        12.MECHANICAL SYSTEM TESTS

        1. Refer to Mechanical System Tests (HILUX_TGN26 RM000000W7A0KVX.html).



        		NG.
        GO TO STEP 17
        OK


        13.HYDRAULIC TEST

        1. Refer to Hydraulic Test (HILUX_TGN26 RM000000W7B0K4X.html).



        		NG.
        GO TO STEP 17
        OK


        14.MANUAL SHIFTING TEST

        1. Refer to Manual Shifting Test (HILUX_TGN26 RM000000W7C0N3X.html).



        		NG.
        GO TO STEP 16
        OK


        15.PROBLEM SYMPTOMS TABLE CHAPTER 1

        1. Refer to Problem Symptoms Table (HILUX_TGN26 RM000000W730OSX.html).



        		NG.
        GO TO STEP 19
        OK


        16.PROBLEM SYMPTOMS TABLE CHAPTER 2

        1. Refer to Problem Symptoms Table (HILUX_TGN26 RM000000W730OSX.html).


        NEXT


        17.PART INSPECTION


          		NG.
          GO TO STEP 21
          OK


          18.DTC CHART

          1. Refer to Diagnostic Trouble Code Chart (HILUX_TGN26 RM0000030G9053X.html).


          NEXT


          19.CIRCUIT INSPECTION

            NEXT


            20.IDENTIFICATION OF PROBLEM

              NEXT


              21.REPAIR OR REPLACE

                NEXT


                22.CONFIRMATION TEST

                  NEXT

                  END