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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    Circuit description
    The o/d main switch (transmission control switch) is a momentary type switch. When pressing the o/d main switch, the o/d off indicator light lights up and the ecm prohibits shifting into o/d, and when pressing it once again, the o/d off indicator light goes off and the ecm allows shifting in ...

    Replacement
    Hint: components: 1. Precaution 2. Disconnect battery negative terminal 3. Remove front door scuff plate rh 4. Remove rear door scuff plate rh 5. Remove front door opening trim rh 6. Remove rear door opening trim rh 7. Remove lap belt outer anchor cover 8. Remove center pillar garnis ...

    Replacement
    Hint: components: 1. Remove floor shift shift lever knob sub–assy 2. Remove console panel upper 3. Remove parking brake hole cover sub–assy 4. Remove console box sub–assy rear 5. Separate floor shift cable transmission control shift Separate the end of the shift cable from the ...