Circuit Description

Throttle Position (TP) sensor is mounted on throttle body/Throttle Actuator Control (TAC) assembly. Sensor is actually 2 individual TP sensors within one housing. Two separate signal, ground and reference circuits are used in order to connect TP sensor assembly and TAC module. TP sensor No. 1 signal voltage increases as throttle opens. The signal circuit for TP sensor is pulled up to reference voltage.

DTC will set when TP sensor No. 1 voltage is less than 0.34 volt or greater than 4.4 volts and condition is met for less than one second.