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

Hyundai Elantra AD (2016-2020) 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.

Schematic Diagram

Engine Control Module (ECM) Repair procedures

Removal • When replacing the ECM, the vehicle equipped withthe immobilizer must be performed procedure asbelow. [In the case of installing used ECM] 1) Perform "ECM Neu ...

ETC (Electronic Throttle Control) System Troubleshooting

Fail-Safe Mode ItemFail-SafeETC MotorThrottle valve stuck at 7°TPSTPS 1 faultReplace it with TPS 2TPS 2 faultReplace it with TPS 1TPS 1,2 faultThrottle valve stuck at 7°APSAPS 1 faultReplace it ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: LCD Display Messages
Shift to P or N to start engine (for smart key system and Intelligent Variable Transmission (IVT)/dual clutch transmission) This warning message is displayed if you try to start the engine with the shift lever not in the P (Park) or N (Neutral) position. Information You can start the engine w ...

Hyundai Elantra AD (2016-2020) Service Manual: Variable Intake Solenoid (VIS) Valve Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the VIS valve connector. 3. Measure resistance between VIS valve terminals 1 and 2. Specification : Refer to "Specification" Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. ...