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: Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the center facia panel. (Refer to Heating, Ventilation and Air Conditioning - "Controller") 3. Disconnect the body control module connectors (A). 4. Remove the body control module (A) after loosening the mounting nut ...

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

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