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: Fuel Pressure Regulator Repair procedures
Removal 1. Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump") 2. Remove the fuel pressure regulator fixing clip (A). 3. Remove the fuel pressure regulator (B) from the fuel filter. Installation 1. Install in the reverse order of removal. ...

Hyundai Sonata LF 2014-2019 Service Manual: Clutch Actuator Assembly Repair procedures
Removal 1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechnical System - "Air cleaner") 2. Remove the TCM. (Refer to Dual Clutch Transmission - "TCM") 3. Remove the battery and tray. (Refer to Engine Electrical System - "Battery") 4. Disconnect the clutch actua ...