Kia Sorento: 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.

Engine Coolant Temperature Sensor (ECTS)

...

Specification

Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 14.13 ~ 16.83 0 32 5.7 ...

See also:

Specifications
Direct control VFS[26/B] ▷ Control type : Normal low type Control Pressure kpa (kgf/cm², psi) 0 ~ 539.37 (0 ~ 5.5, 0 ~ 78.23) Current value(mA) ...

Inspection
1. Disconnect the ignition switch connector (B) and key warning switch connector (A) from under the steering column. 2. Che ...

Thermostat Inspection
1. Immerse the thermostat in water and gradually heat the water. 2. Check the valve opening temperature. Valv ...