Toyota Corolla (E120): How to proceed with troubleshooting

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Problem symptom confirmation

3 Problem symptom confirmation

4 Circuit inspection

4 Circuit inspection

5 Repair or replace

5 Repair or replace

6 Confirmation test

6 Confirmation test

7 End

7 End

Customer problem analysis check

Location

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    Circuit description
    The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...

    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 ...

    Vehicle information
    This screen can be used to display the fuel consumption. “Trip Information” or “Past Record” screen Press “CAR” to display the “Trip Information” or “Past Record” screen. Fuel consumption ■ Trip information If the “Trip Information” screen does not appear, select ...