Hyundai Kona: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and operation

Hyundai Kona (OS) 2018-2022 Service Manual / Engine Control / Fuel System / Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and operation

Description
Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage of the cylinder head for detecting the engine coolant temperature. The ECTS uses a thermistor that changes resistance with the temperature.
The electrical resistance of the ECTS decreases as the temperature increases, and increases as the temperature decreases. The reference +5V is supplied to the ECTS via a resistor in the ECM. That is, the resistor in the ECM and the thermistor in the ECTS are connected in series. When the resistance value of the thermistor in the ECTS changes according to the engine coolant temperature, the output voltage also changes.
During cold engine operation, the ECM increases the fuel injection duration and controls the ignition timing using the information of engine coolant temperature to avoid engine stalling and improve drivability.

Boost Pressure Sensor (BPS) Repair procedures
Inspection 1. Connect a GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the BPS at idle and IG ON. ...

Engine Coolant Temperature Sensor (ECTS) Specifications
Specification Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 ...

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Hyundai Kona (OS) 2018-2022 Service Manual: Description and operation
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Hyundai Kona (OS) 2018-2022 Owners Manual: Operating conditions
To operate: Press the BCW switch with the Ignition switch in the ON position. The indicator on the BCW switch will illuminate. When the vehicle speed exceeds 30 km/h (20 mph), the system will be activated. To cancel: Press the BCW switch again. The indicator on the switch will go off. When the sys ...

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