Description and Operation: Description

WARNING: This page is about a different car, the 2023 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.

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.