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:

    Brake fluid
    ■ Checking fluid level The brake fluid level should be between the “MAX” and “MIN” lines on the tank. ■ Adding fluid Make sure to check the fluid type and prepare the necessary item. 1 Slide and lift up the rubber strip to partially remove it as shown. 2 Disconnect the ...

    Inspection
    1. Inspect front seat inner belt assy lh When fastening the seat belt (buckle switch on).  Inspect the continuity and resistance between the terminals. Standard: If the result is not as specified, replace the inner belt. When releasing the seat belt (buckle switch ...

    Components
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