toyota Workshop Repair Guides

Toyota Workshop Manuals

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Overdrive Switch: Testing and Inspection

O/D main Switch & O/D Off Indicator Light Circuit

CIRCUIT DESCRIPTION 

The O/D main switch contacts go open when the switch is pushed in and go closed when it is pushed out. In O/D main switch at OFF position, the
O/D OFF indicator light lights up and the ECM prohibits shifting overdrive.

WIRING DIAGRAM 

INSPECTION PROCEDURE 

Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain > Sensors and Switches - A/T > Overdrive Switch, A/T > Component Information > Diagrams > Page 5152

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