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

    Share this page:

    Other materials:

    Adjustment
    1. Remove rear wheel 2. Adjust rear drum brake shoe clearance 3. Install rear wheel torque: 103 nvm (1,050 Kgf·cm, 76 ft·lbf) 4. Inspect parking brake lever travel  pull the parking brake lever to the fully applied position, and count the number of clicks. Parking brake lever tr ...

    Overhaul
    1. Remove oil pump relief valve Remove the oil pump relief valve plug, oil pump relief valve spring and oil pump relief valve.  Oil pump relief valve plug  oil pump relief valve spring  oil pump relief valve 2. Inspect oil pump assy Remove 3 screws and o ...

    Circuit inspection
    1 Check d squib circuit(airbag sensor assy center – horn button assy) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the horn button assy.  connect the ...