Electronic Controlled Automatic Transmission System How To Proceed With Troubleshooting

Transmission. Lexus Gs430, Gs300. Uzs190 Grs190
A760E Automatic Transmission. Lexus Gs430, Gs300. Uzs190 Grs190

  1. Vehicle Brought to Workshop

  2. Customer Problem Analysis

  3. Connect the OBD II scan tool or intelligent tester to DLC3

  4. Check and Clear DTCs and Freeze Frame Data

  5. Visual Inspection

  6. Setting the Check Mode Diagnosis

  7. Problem Symptom Confirmation

  8. Symptom Simulation

  9. DTC Check

  10. Basic Inspection

  11. Mechanical System Test

  12. Hydraulic Test

  13. Manual Shifting Test

  14. Problem Symptoms Table Chapter 1

  15. Problem Symptoms Table Chapter 2

  16. Part Inspection

  17. DTC Chart

  18. Circuit Inspection

  19. Repair or Replace

  20. Confirmation Test

Electronic Controlled Automatic Transmission System -- How To Proceed With Troubleshooting


HINT:
  1. The ECM of this system is connected to the CAN and multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN and multiplex communication system.
  2. The intelligent tester can be used at steps 3, 4, 6, and 9.


1.Vehicle Brought to Workshop

    NEXT


    2.Customer Problem Analysis

      NEXT


      3.Connect the OBD II scan tool or intelligent tester to DLC3

        NEXT


        4.Check and Clear DTCs and Freeze Frame Data

          NEXT


          5.Visual Inspection

            NEXT


            6.Setting the Check Mode Diagnosis

              NEXT


              7.Problem Symptom Confirmation


                		.
                Symptom does not occur: Go to step 8

                		.
                Symptom occurs: Go to step 9

                8.Symptom Simulation

                  NEXT


                  9.DTC Check


                    		.
                    DTC is not output: Go to step 10

                    		.
                    DTC is output: Go to step 17

                    10.Basic Inspection


                      		NG.
                      Go to step 19
                      OK


                      11.Mechanical System Test


                        		NG.
                        Go to step 16
                        OK


                        12.Hydraulic Test


                          		NG.
                          Go to step 16
                          OK


                          13.Manual Shifting Test


                            		NG.
                            Go to step 15
                            OK


                            14.Problem Symptoms Table Chapter 1


                              		NG.
                              Go to step 18
                              OK


                              15.Problem Symptoms Table Chapter 2

                                NEXT


                                16.Part Inspection


                                  		.
                                  Go to step 19

                                  17.DTC Chart

                                    NEXT


                                    18.Circuit Inspection

                                      NEXT


                                      19.Repair or Replace

                                        NEXT


                                        20.Confirmation Test

                                          NEXT

                                          End