Throttle Position Sensor: Description and Operation

Throttle Sensor:

PURPOSE
Provides ECU with throttle position signal

LOCATION
Side of throttle body.

OPERATION
Sensor is rotated by the throttle shaft so that sensor and shaft positions correspond when the sensor is properly adjusted. On M/T models, provides ECU with a throttle fully closed or throttle fully open signal by means of separate contacts within the sensor. On A/T models, sensor is a potentiometer whose resistance varies according to throttle position.