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: Blower Unit Repair procedures
Replacement When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage. 1. Disconnect the negative (-) battery terminal. 2. Recover the refrigerant with a ...

Hyundai Sonata LF 2014-2019 Service Manual: Drive Belt Components and Components Location
Components 1. Drive belt ...