Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / How to proceed with troubleshooting
Toyota Corolla (E120): How to proceed with troubleshooting
Troubleshoot in accordance with the procedure on the following pages.
1 Vehicle brought to workshop

2 Customer problem analysis check and symptom check
- Without applicable symptoms, proceed to ”a”.
- with applicable symptoms, proceed to ”b”.


3 Symptom simulation

4 Problem symptoms table
- Without applicable symptoms, proceed to ”a”.
- with applicable symptoms, proceed to ”b”.


5 Circuit inspection and part inspection

6 Perform troubleshooting in the following method, depending on malfunction symptom
- Terminals of ecu (seepage 05–703)
- on–vehicle inspection
7 Adjustment, repair or replacement

8 Confirmation test

End
Customer problem analysis check

Location

Other materials:
Circuit inspection
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the horn button assy.
connect the ...
Overhaul
1. Remove repair service starter kit
Remove the nut, then disconnect the lead wire from terminal
c.
Remove the 2 screws which are used to secure the repair
service starter kit to the starter drive housing.
remove the repair service starter kit.
remove the return ...
Inspection procedure
1 Check side squib(rh) circuit(airbag sensor assy center – front
seat airbag assy rh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the front seat airbag
assy (rh) and the airbag sensor assy center. ...


