Diagnostics

How to proceed with troubleshooting

~1min read
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
Symptom does not occur (go to
Symptom does not occur (go to step 5) 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 Confirmation test
10 Confirmation test
End
End Customer problem analysis check
Toyota Corolla. Customer problem analysis check

Test yourself

A quick Toyota Corolla quiz: every answer comes with an explanation and a link to the manual page.