Description And Operation: Description

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Electronic Throttle Control (ETC) system is a system that controls the throttle valve electronically.
The Electronic Throttle Control (ETC) System consists of a throttle body with an integrated control motor and Throttle Position Sensor (TPS).
The Engine Control Module (ECM) uses the Accelerator Position Sensor (APS) signal to calculate the target throttle angle; the position of the throttle is then adjusted by ECM control via the ETC motor.

Courtesy of KIA MOTORS AMERICA, INC.