DTC P2118-00: Throttle Actuator Control Motor Current Range/Performance: General Description

The Electronic Throttle Control (ETC) system consists of the throttle body, Throttle Position Sensor (TPS) 1, 2 and APS 1, 2. TPS1, 2 are sharing the same source voltage and ground. The throttle valve opening is control by throttle motor which is controlled by PCM. The opposite position indicator shows inverted signal characteristics. TPS1 output voltage increases smoothly in proportion with the throttle valve opening angle after starting. TPS2 output voltage decreases in inverse proportion with the throttle valve opening angle after starting. TPS provides feedback to the PCM to control the throttle motor in order to control the throttle valve opening angle properly in response to the driving condition.