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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Automatic Transmission - Diagnosis) >> Circuit Tests >> O/D Main Switch & O/D Indicator Light Circuit >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Toyota Land Cruiser, 2002 Lexus LX 470, 2001 Toyota Land Cruiser, and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

The O/D main switch is a momentary type switch. When pressing the O/D OFF main switch, the O/D OFF indicator light illuminates and the 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 ignition switch OFF will reset the O/D OFF indicator light.

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