Hyundai Sonata: Engine Control System / ETC (Electronic Throttle Control) System Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / ETC (Electronic Throttle Control) System 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). Instead of the traditional throttle cable, an Accelerator Position Sensor (APS) is used to receive driver input. The ECM uses the APS signal to calculate the target throttle angle; the position of the throttle is then adjusted via ECM control of the ETC motor. The TPS signal is used to provide feedback regarding throttle position to the ECM. Using ETC, precise control over throttle position 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. Yoke
8. Stator

Schematic Diagram

Engine Control Module (ECM) Repair procedures

Removal When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below. [In the case of installing used ECM] 1. Perform "Neutral mod ...

ETC (Electronic Throttle Control) System Troubleshooting

Fail-Safe Mode ItemFail-SafeETC MotorThrottle valve stuck at 7°TPSTPS 1 faultECM looks at TPS2TPS 2 faultECM looks at TPS1TPS 1,2 faultThrottle valve stuck at 7°APSAPS 1 faultECM looks at APS 2 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
Components 1. Timing chain2. Timing chain guide3. Timing chain arm4. Timing chain auto tensioner5. Timing chain cover6. Drive belt idler7. Water pump gasket8. Water pump9. Water pump pulley10. Crank shaft pulley11. Front oil seal12. Alternat ...

Hyundai Sonata LF 2014-2019 Owners Manual: To Adjust the Sensitivity of Smart Cruise Control
The sensitivity of vehicle speed when following the front vehicle to maintain the set distance can be adjusted. Go to the User Settings Mode (Driving Assist) and select SCC (Smart Cruise Control). You may select one of the three stages you prefer. • Slow: Vehicle speed following the front vehi ...