Hyundai Santa Fe: ETC (Electronic Throttle Control) System / Description and operation

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 cable, an Accelerator Position Sensor (APS) is used to receive driver input. The ECM uses the APS signal to calculate the target throttle angle; the position of the throttle is then adjusted via ECM control of the ETC motor. The TPS signal is used to provide feedback regarding throttle position to the ECM. Using ETC, precise control over throttle position is possible; the need for external cruise control modules/cables is eliminated.

ETC (Electronic Throttle Control) System

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Troubleshooting

Fail-Safe Mode Item Fail-Safe ETC Motor Throttle valve stuck at 5° TPS TPS 1 fault Replace it with TPS2 TPS 2 fault Replace it with TPS1 TPS 1, 2 fault Throttle valve stuck at 5° APS TPS 1 fault Replace it with TPS2 TPS 2 fault Replace it with TPS1 TPS 1, 2 fault Throttle valve stuck at 5°    • When throttle value is stuck at 5°, engine speed is limited at below 1,500rpm and vehicle speed at maximum 40 - 50 km/h (25 - 31 mph)...

Other information:

Hyundai Santa Fe (TM) 2019-2024 Service Manual: Transaxle Oil Temperature Sensor. Repair procedures

Inspection    • Refer to the DTC manual for the check procedure. Removal    • Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift...

Hyundai Santa Fe (TM) 2019-2024 Service Manual: Cowl Cross Bar Assembly. Repair procedures

Replacement    • Put on gloves to prevent hand injuries.    • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components...