Toyota Corolla (E120): How to proceed with troubleshooting

The hand–held tester can be used at step 3, 4, 6, 9.

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Connect the obd ii scan tool or hand–held tester to dlc3

3 Connect the obd ii scan tool or hand–held tester to dlc3

4 Check and clear dtc and freeze frame data

4 Check and clear dtc and freeze frame data

5 Visual inspection

5 Visual inspection

6 Setting the check mode diagnosis

6 Setting the check mode diagnosis

7 Problem symptom confirmation

7 Problem symptom confirmation

step 8Symptom does not occur: go to step 8

8 Symptom simulationSymptom occur: go to step 9

8 Symptom simulation

9 Dtc check

9 Dtc check

Dtc is output: go to step 18Dtc is not output: go to step 10

10 Basic inspectionDtc is output: go to step 18

10 Basic inspection

11 Mechanical system test

11 Mechanical system test

12 Hydraulic test

12 Hydraulic test

13 Manual shifting test

13 Manual shifting test

14 Problem symptoms table chapter 1

14 Problem symptoms table chapter 1

15 Problem symptoms table chapter 2

15 Problem symptoms table chapter 2

16 Problem symptoms table chapter 3

16 Problem symptoms table chapter 3

17 Part inspection

17 Part inspection

18 Dtc chart Go to step 20

18 Dtc chart

19 Circuit inspection

19 Circuit inspection

20 Identification of problem

20 Identification of problem

21 Repair

21 Repair

22 Confirmation test

22 Confirmation test

End

End

    Share this page:

    Other materials:

    On–vehicle inspection
    1. Washer motor Operation check pour the water into the washer jar with the washer motor and the pump installed to the washer jar assy.  Connect the battery (+) to terminal 2 of the washer motor and the pump, the battery (–) to terminal 1 of the washer motor and the pump ...

    Monitor description
    The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault ...

    Making a phone call
    To enter the “PHONE” mode, press the off-hook switch. ■ Making a phone call ● Dialing by selecting a name ● Speed dialing ● Dialing by entering the number ● Dialing from call histories ■ Receiving a phone call ● Answering the phone ● Refusi ...