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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    Circuit description
    When the brake pedal is depressed, the stop lamp switch assy sends a signal to the cruise control ecu assy. When the cruise control ecu assy receives this signal, it cancels the cruise control. A fail–safe function is provided so that cancel functions normally, even if there is a malfu ...

    Skid control sensor
    Replacement Hint: replace the rh side by the same procedure as the lh side. 1. Remove rear wheel 2. Remove rear brake drum sub–assy 3. Disconnect skid control sensor wire Disconnect the skid control sensor wire connector from the skid control sensor. 4. Remove rear axle hub & ...

    Power point socket assy rr
    Replacement Hint: components: 1. Remove parking brake hole cover sub–assy 2. Remove floor shift shift lever knob sub–assy (m/t transaxle) 3. Remove console panel upper 4. Remove console box carpet 5. Remove console box sub–assy rear (m/t transaxle) 6. Remove console box sub–assy rear ...