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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC P2122: Throttle/Pedal Position Sensor/Switch 'D' Circuit Low Input >> General Information >> General Description

General Information: General Description

WARNING: This page is about a different variant/trim than selected.

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 APS is mounted in the accelerator pedal to detect the opening angle of the accelerator pedal. It has 2 sensors to detect the accelerator position and a malfunction of the accelerator position sensor. The PCM judges the current opening angle of the accelerator pedal from APS1 & 2, and the PCM controls the throttle motor based on these signals.