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 5.79 ...

See also:

Interior overview
1. Driver position memory system button 2. Inside door handle 3. Outside rearview mirror folding 4. Outside rearview mirror control 5. Central door lock switch 6. Power window lock switch 7. ...

Injector Inspection
1. Turn the ignition switch OFF. 2. Disconnect the injector connector. 3. Measure resistance between the inject ...

Starter Cleaning
1. Do not immerse parts in cleaning solvent. Immersing the yoke assembly and/or armature will damage the insulation wipe these parts with a cloth only. ...