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
    The side airbag sensor assy (lh) circuit consists of the diagnosis circuit and lateral deceleration sensor, etc. It receives signals from the lateral deceleration sensor, judges whether or not the srs must be activated, and detects diagnosis system malfunction. Dtc b1141/33 is recorded wh ...

    Torque converter clutch and drive plate (atm)
    Inspection 1. Inspect torque converter clutch assy Inspect the one–way clutch.  Set sst into the inner race of the one–way clutch. Sst 09350–32014 (09351–32010)  set sst so that it fits in the notch of the converter hub and outer race of the one–way clutch. ...

    On–vehicle inspection
    1. Inspect pressure switch no.1. Magnetic clutch control: inspect pressure switch operation.  Set on the manifold gauge set.  Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative (–) lead to terminal 1.  Check continuity between termin ...