toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 2290 > < Diagram Information and Instructions|Page 2288
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Throttle Position Sensor: Description and Operation

PURPOSE

The Throttle Position Sensor (TPS) sends a signal to the Engine Control Module (ECM) indicating throttle angle and idle position of the throttle
plate.

OPERATION

Whenever the throttle is opened, a varied resistance signal is reported to the ECM. When the throttle is returned to the idle position, the idle switch
portion of the sensor is closed.

Diagram Information and Instructions|Page 2290 > < Diagram Information and Instructions|Page 2288