Toyota Corolla (E120): How to proceed with troubleshooting

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Check and clear dtc

3 Check and clear dtc

4 Problem symptom confirmation

4 Problem symptom confirmation

Symptom does not occur (go to

Symptom does not occur (go to step 5)

5 Symptom simulation

6 Dtc check

6 Dtc check

7 Dtc chart

7 Dtc chart

8 Problem symptoms table

8 Problem symptoms table

9 Circuit inspection

9 Circuit inspection

10 Confirmation test

10 Confirmation test

End

End

Customer problem analysis check

Pre–check

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    Other materials:

    Front seats
    Adjustment procedure ► Manual seat 1 Seat position adjustment lever 2 Seatback angle adjustment lever 3 Vertical height adjustment lever (driver’s side only) ► Power seat (driver’s side only) 1 Seat position adjustment switch 2 Seatback angle adjustment switch 3 Seat cush ...

    Have the malfunction repaired immediately. (vehicles with a smart key system)
    After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ■Warning buzzer ...

    Key information
    Keys The following keys are provided with the vehicle. ►  Vehicles without a smart key system (type A) 1 Keys 2 Key number plate ► Vehicles without a smart key system (type B) 1 Keys Operating the wireless remote control function 2 Key number plate ► Vehicles ...