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Home >> Toyota >> 2003 >> Sienna V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Transmission Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> O/D Main Switch and 0/D Off Indicator Light Circuit
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O/D Main Switch and 0/D Off Indicator Light Circuit

CIRCUIT DESCRIPTION

The O/D main switch is a momentary type switch. When the 0/D main switch is pressed, the O/D OFF indicator light lights up and the ECM prohibits the gear from shifting to the O/D. And, when the O/D main switch is pressed again, the O/D OFF indicator light goes off and the ECM allows the gear to shift to the O/D. Turning the ignition switch OFF will reset the O/D OFF indicator light.

Wiring Diagram:






Step 1 - 3:




Step 4 - 5:




INSPECTION PROCEDURE
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