Hyundai Sonata LF Quiz
Engine Control System/Fuel System

Description and Operation of the ETC (Electronic Throttle Control) System

In this manual: Engine Control System/Fuel System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
~1min read

Description

The Electronic Throttle Control (ETC) system consists of a throttle body with an integrated control motor and a throttle position sensor (TPS). Instead of a conventional throttle cable, the accelerator pedal position sensor (APS) is used to receive driver input. The ECM uses the APS signal to calculate the target throttle angle; the throttle position is then controlled by the ECM through the ETC motor. The TPS signal is used to provide throttle position feedback to the ECM. With ETC, precise throttle position control is possible; the need for external cruise control modules/cables is eliminated.
1. Dry Bearing
2. DC Motor
3. Non-contact Hall Sensor
4. Gear		 5. Magnet
6. Hall IC
7. Clamp
8. Stator

Schematic Diagram

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