Toyota Corolla (E120): How to proceed with troubleshooting

The hand–held tester can be used at step 4, 6, 8 and 9.

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Warning light check

3 Warning light check

4 The dtcs check (present and past dtcs)

4 The dtcs check (present and past dtcs)

5 The dtcs chart

5 The dtcs chart

6 Circuit inspection

6 Circuit inspection

7 Repair

7 Repair

8 Clear the dtcs (present and past dtcs)

8 Clear the dtcs (present and past dtcs)

9 The dtcs check (present and past dtcs)

9 The dtcs check (present and past dtcs)

10 Symptom simulation

10 Symptom simulation

11 Confirmation test

11 Confirmation test

End

End

Customer problem analysis check

Pre–check

    Share this page:

    Other materials:

    If the electronic key does not operate properly (vehicles with a smart key system)
    If communication between the electronic key and vehicle is interrupted or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control cannot be used. In such cases, the doors can be opened and the engine can be started by following the procedur ...

    Positioning a floor jack
    When using a floor jack, follow the instructions in the manual provided with the jack and perform the operation safely. When raising your vehicle with a floor jack, position the jack correctly. Improper placement may damage your vehicle or cause injury. Location of the jack point â–  Front â–  Rea ...

    Diagnosis system
    Description  when troubleshooting obd ii vehicles, the only difference from the usual troubleshooting procedure is that you need to connect an obd ii scan tool complying with sae j1987 or a hand–held tester to the vehicle, and read off various data output from the vehicle†...