Hyundai Veloster: ETC (Electronic Throttle Control) System. Description and Operation

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.

Engine Control Module (ECM). Repair procedures

Removal When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below. ...

ETC (Electronic Throttle Control) System. Troubleshooting

Fail-Safe Mode Item Fail-Safe ETC Motor Throttle valve stuck at 7° TPS TPS 1 fault ECM looks at TPS2 ...

See also:

Hill-start assist control (HAC)
A vehicle has the tendency to slip back on a steep hill when the driver begins to accelerate after a stop. The Hill-start Assist Control (HAC) prevents the vehicle from slipping back by operating ...

TPMS Sensor. Repair procedures
Replacement 1. Remove the valve core and deflate the tire. 2. Remove the side of the tire bead area from the wheel using tire changing mac ...

Fuel Filter. Repair procedures
Replacement 1. Remove the fuel pump (Refer to “Fuel Pump” in this group). 2. Disconnect the electric pump wiring connector (A) and the fuel ...