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Home >> Kia >> 2017 >> Niro EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System >> ETC (Electronic Throttle Control) System >> Description And Operation >> Description
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Description And Operation: Description

The Electronic Throttle Control (ETC) System consists of a throttle body with an integrated control motor and throttle position sensor (TPS). Unlike the existing mechanical throttle system that controls the throttle valve by using wire cable connected to the accelerator pedal, the ETC system controls the opening and closing of the throttle valve by the ECM with ETC motor according to the APS (Accelerator Position Sensor) signal mounted to electronic accelerator pedal module. The TPS signal is used to provide feedback regarding throttle position to the ECM. Also, the ETC system has the benefit of implementing cruise control function without additional external cruise control modules/cables.

Fig 1: Locating ETC Module
G12335764Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: ETC Module System Components
G12335765Courtesy of KIA MOTORS AMERICA, INC.