Toyota Corolla (E120): How to proceed with troubleshooting

Troubleshoot in accordance with the procedure on the following pages.

1 Vehicle brought to workshop

2 Customer problem analysis check and symptom check

2 Customer problem analysis check and symptom check

  1. Without applicable symptoms, proceed to ”a”.
  2.  with applicable symptoms, proceed to ”b”.

3 Symptom simulation

3 Symptom simulation

4 Problem symptoms table

4 Problem symptoms table

  1. Without applicable symptoms, proceed to ”a”.
  2.  with applicable symptoms, proceed to ”b”.

5 Circuit inspection and part inspection

5 Circuit inspection and part inspection

6 Perform troubleshooting in the following method, depending on

6 Perform troubleshooting in the following method, depending on malfunction symptom

  1. Terminals of ecu (seepage 05–703)
  2.  on–vehicle inspection

7 Adjustment, repair or replacement

8 Confirmation test

8 Confirmation test

End

End

Customer problem analysis check

Location

Location

Terminals of ecu

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