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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    Other materials:

    Inspection
    1. Power window system circuit 2. Inspect power window regulator master switch assy Inspect the master switch continuity. [Driver’s switch (window unlock and lock)] Standard: [Front passenger’s switch (window unlock)] standard: [Front passenger’s switch (window lock)] ...

    Rear speaker assy
    Replacement Hint: components: 1. Remove rear door opening trim rh 2. Remove rear door opening trim lh 3. Remove bench type rear seat cushion assy( or 72–8) 4. Remove rear seat back assy (fixed type rear seat) 5. Remove rear seat back assy (separated type rear seat) 6. Remove rear seat side ...

    Front differential oil seal (atm)
    Replacement 1. Remove front wheels 2. Remove engine under cover rh 3. Remove engine under cover lh 4. Drain automatic transaxle fluid  remove the drain plug, gasket and drain atf.  install a new gasket and drain plug. Torque: 17.5 Nvm (178 Kgf·cm, 13 ft·lbf) 5. Remove fron ...