Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle / O/d main switch circuit /  Circuit description
                        Toyota Corolla (E120): Circuit description
The o/d main switch (transmission control switch) is a momentary type switch. When pressing the o/d main switch, the o/d off indicator light lights up and the ecm prohibits shifting into o/d, and when pressing it once again, the o/d off indicator light goes off and the ecm allows shifting into o/d. Turning the ig switch off will reset the o/d off indicator light.
Wiring diagram

Other materials:
Uniform Tire Quality Grading
   This information has been prepared in accordance with regulations issued by the 
National Highway Traffic Safety Administration of the U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota vehicles with 
information on uniform tire quality grading.
 ...
   
Check mode procedure
   Hint:
hand–held tester only:
compared to the normal mode, the check mode has more sensing
ability to detect malfunctions. Furthermore, the same diagnostic
items which are detected in the normal mode can also be
detected in the check mode.
1. Check mode procedure(using the hand–held tester) ...
   
Seat belt warning lamp for driver’s seat does not
operate
   Wiring diagram
Inspection procedure
1 Check combination meter assy
	Ground terminal c9–12 on the combination meter side.
	check that the warning lightlights up.
	Ok: warning light lights up.
2 Inspect front seat inner belt assy lh
	Disconnect the front seat inner belt  ...
   


