Throttle Position Sensor: Description and Operation

COMPONENT
Throttle Position Sensor (TPS)

FUNCTION
Detects throttle plate opening angle and outputs analog voltage signal to PCM. PCM determines four operating conditions:
1. Closed throttle (idle/deceleration)
2. Part throttle (cruise/acceleration)
3. Wide open throttle (maximum/acceleration)
4. Throttle angle rate

REMARKS
Uses a rotary potentiometer that is rotated by throttle shaft. As throttle plate is opened or closed, output signal changes linearly.