Hyundai Sonata LF: 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)...

    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...

    Other information:

    Hyundai Sonata LF 2014-2019 Service Manual: Thermostat Repair procedures


    Removal     Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. 1. Drain engine coolant so that its level would be under the thermostat height. 2. Remove the radiator lower hose...

    Hyundai Sonata LF 2014-2019 Service Manual: Rear Door Module Repair procedures


    Replacement 1. Remove the rear door window glass. (Refer to Rear Door - "Rear Door Window Glass") 2. Remove the rear door outside handle. (Refer to Rear Door - "Rear Door Outside Handle") 3. Loosen the rear door outside handle base mounting bolt (A)...

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