Kia Sportage: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and operation

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.

Engine Coolant Temperature Sensor (ECTS) Specifications

Specification Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 ...

Engine Coolant Temperature Sensor (ECTS) Schematic diagrams

Circuit Diagram Harness Connector ...

Other information:

Kia Sportage QL (2015-2019) Service Manual: Transaxle Control Module (TCM) Repair procedures

Inspection 1. TCM ground circuit test : Measure the resistance between TCM and chassis ground. (Inspect the terminal connected to the chassis ground with the back of harness connector as the inspection point of TCM side.) Spec ...

Kia Sportage QL (2015-2019) Owners Manual: Paddle shifter

The paddle shifter is available when the shift lever is in the D position or the manual mode. With the shift lever in the D position The paddle shifter will operate when the vehicle speed is more than 6.2mph(10km/h). Pull the [+] or [-] paddle shifter once to shift up or down one gear and the ...