Toyota Corolla (E120): How to proceed with troubleshooting

The hand–held tester can be used at step 4, 6, 8 and 9.

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Warning light check

3 Warning light check

4 The dtcs check (present and past dtcs)

4 The dtcs check (present and past dtcs)

5 The dtcs chart

5 The dtcs chart

6 Circuit inspection

6 Circuit inspection

7 Repair

7 Repair

8 Clear the dtcs (present and past dtcs)

8 Clear the dtcs (present and past dtcs)

9 The dtcs check (present and past dtcs)

9 The dtcs check (present and past dtcs)

10 Symptom simulation

10 Symptom simulation

11 Confirmation test

11 Confirmation test

End

End

Customer problem analysis check

Pre–check

    Share this page:

    Other materials:

    Wireless remote control/electronic key battery
    Replace the battery with a new one if it is depleted. As the key may be damaged if the following procedure is not performed properly, it is recommended that key battery replacement be performed by your Toyota dealer. ■If the key battery is depleted The following symptoms may occur: The smart ke ...

    Replacement
    1. Work for preventing gasoline from spilling out 2. Remove front wheels 3. Remove engine under cover rh 4. Remove engine under cover lh 5. Drain coolant 6. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 7. Disconnect radiator hose inlet &nb ...

    Overhaul
    1. Remove speedometer drive (mtm) gear Remove the speedometer drive (mtm) gear from the front differential case. 2. Remove front differential ring gear Place matchmarks on the front differential ring gear and front differential case. Remove the 8 bolts. Using a hamme ...