Throttle Position Sensor

Turn ignition switch to ON position. Using DVOM, backprobe TP sensor connector terminals No. 1 (Black/Green wire) and 3 (Blue/Orange wire). See Fig 1. With throttle fully closed, voltage should be .4-.6 volt, and at wide open throttle voltage should be 4.1-4.3 volts. If voltage is not as specified, replace TP sensor.

Fig 1: Identifying TP Sensor Terminals

Courtesy of KIA MOTORS AMERICA, CORP.