Celica GT-S L4-1.8L (2ZZ-GE) (2000)
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Overdrive Indicator Lamp: Testing and Inspection
O/D Main Switch & O/D OFF Indicator Light Circuit
CIRCUIT DESCRIPTION
The O/D main switch is a momentary type switch. When pressing the O/D main switch, the O/D OFF indicator light lights up and ECM prohibits shifting
to O/D, and when pressing it again, the O/D OFF indicator light goes off and ECM allows shifting to O/D. Turning the IG switch OFF will reset the O/D
OFF indicator light.
WIRING DIAGRAM
