Hyundai Sonata: Engine Control System / ETC (Electronic Throttle Control) System Troubleshooting

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / 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
	TPS 2 fault	ECM looks at TPS1
	TPS 1,2 fault	Throttle valve stuck at 7°
APS	APS 1 fault	ECM looks at APS 2
	APS 2 fault	ECM looks at APS 1
	APS 1,2 fault	Engine idle state

When throttle value is stuck at 7°, engine speed is limited at below 1,500rpm and vehicle speed at maximum 40 ~ 50 km/h (25 ~ 31 mph)

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 cab ...

ETC (Electronic Throttle Control) System Specifications

Specification [Throttle Position Sensor (TPS)] Throttle angle(°)Output Voltage (V)TPS1TPS200.504.50100.964.05201.413.59301.873.14402.322.68502.782.23603.231.77703.691.32804.140.86904.600.41984.65 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Front Driveshaft Repair procedures
Removal 1. Raise the vehicle, and make sure it is securely supported. 2. Remove the wheel cap (A). Be careful not to damage to the wheel cap (A) when removing the it. 3. Remove the front wheel and tire (A) from front hub. Tightening torque : 88.3 ~ 107.9 N. ...

Hyundai Sonata LF 2014-2019 Owners Manual: LKAS malfunction
Check LKAS LKAS failure indicator The LKAS failure indicator (yellow) will illuminate if the LKAS is not working properly. Have your vehicle checked by an authorized HYUNDAI dealer. WARNING The driver is responsible for accurate steering. Turn off the system and drive the vehicle in below situa ...