Tundra Regular Cab 2WD V6-3.4L (5VZ-FE) (2000)
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Overdrive Indicator Lamp: Description and Operation
The O/D main switch contacts go open when the switch is pushed in and go closed when it is pushed out.
If O/D main switch is at OFF position, the O/D OFF indicator light lights up, and the ECM prohibits shifting O/D.
