Kia Forte: Engine Coolant Temperature Sensor (ECTS) 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 whose resistance changes 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.

Intake Air Temperature Sensor (IATS) Inspection

1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance between the IATS termi ...

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:

Torque Converter Control Solenoid Valve (T/CON_VFS) Removal
1. Disconnect the negative (-) battery cable. 2. Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - &qu ...

Tightening Torques
Item N.m kgf.m lb-ft Ignition coil installation bolt 9.8 ~ 11.8 1.0 ~ 1.2 7.2 ~ 8.7 Spark plug installation 14.7 ~ 24. ...

Component Location
1. Windshield wiper arm & blade 2. Wiper & washer switch 3. Windshield washer hose 4. Windshield wiper motor & linkage 5. Washer motor 6. Washer reservoir ...