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

Hyundai Elantra AD (2016-2020) 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
Replace it with TPS 2
TPS 2 fault
Replace it with TPS 1
TPS 1,2 fault
Throttle valve stuck at 7°
APS
APS 1 fault
Replace it with APS 2
APS 2 fault
Replace it with 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 angle (°)Output voltage (V) [Vref = 5.0V]TPS1TPS200.54.5100.964.05201.413.59301.873.14402.322.68502.782.23603.231.77703.691.32804.140.86904.60.41984.650.35C.T (0)0.54.5W. ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Battery Sensor Description and Operation
Description Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors. It is important to have a stable power supply as there diverse sensors giving a variety of information. Battery sensor is mounted on ba ...

Hyundai Elantra AD (2016-2020) Service Manual: Evaporator Temperature Sensor Description and Operation
Description The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC). Electrical re ...

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