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

5 Symptom simulation

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 Identification of problem

10 Identification of problem

11 Parts inspection

11 Parts inspection

12 Repair

12 Repair

13 Confirmation test

13 Confirmation test

End

End

Customer problem analysis check

Pre–check

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    Other materials:

    Overhaul
    1. Remove w/head taper screw plug no.2 Using a socket hexagon wench 10, remove the taper screw plug and gasket. 2. Remove valve lifter Remove the valve lifters from the cylinder head. 3. Remove valve Place the cylinder head on wooden blocks.  using sst, compres ...

    Driving the vehicle
    The following procedures should be observed to ensure safe driving: Driving procedure ■ Driving 1. With the brake pedal depressed, shift the shift lever to D. 2. Release the parking brake. If the parking brake is in automatic mode, the parking brake will be released automatically. 3. Gradually re ...

    Inspection procedure
    1 Check p/t squib(lh) circuit(airbag sensor assy center – front seat outer belt assy lh) 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 seat belt pretensio ...