Celica GT Convertible L4-2164cc 2.2L DOHC MFI (1997)
Overdrive Indicator Lamp: Description and Operation
CIRCUIT DESCRIPTION
The O/D main switch contacts go open when the switch is pushed in and go closed when it is pushed once again. In O/D main switch at OFF
position,the O/D OFF indicator light lights Up, and the ECM prohibits shifting to O/D.