General Information

Component Location





General Description

The Electronic Throttle Control (ETC) system is made of the components throttle body, Throttle Position Sensor (TPS) 1&2 and Accelerator Position Sensor (APS) 1&2. The throttle body contains the actuator, the throttle plate and the throttle position sensor (potentiometer), which are integrated in one housing. The actuator consists of a DC motor with a two-stage gear. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. And it provides feedback to the ECM to control the throttle motor in order to control the throttle valve opening angle properly in response to the driving condition.

DTC Description

Checking throttle valve return state under detecting condition, if an output signal is within the threshold value for more than designated time, ECM sets P1523.

DTC Detecting Condition





Specification





Signal Waveform & Data
















Fig.1) Normal waveform of TPS1 & TPS2 with no accel pedal depressed under IG ON condition
Fig.2) Normal waveform of TPS1 & TPS2 with accel pedal depressed under IG ON condition
Fig.3) Normal data of TPS1 & TPS2 under idle condition
Fig.4) Abnormal data of TPS1 & TPS2 under open condition