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:

In-car Sensor (DATC only) Description
An in-car air temperature sensor is located in the crash pad lower panel. The sensor contains a thermistor which measures the temperature of the inside. The signal decided by the resistance ...

Overhead Console Lamp Inspection
1. Remove the overhead console lamp assembly then check for continuity between terminals. If the continuity is not as specified, replace the map lamp switch. ...

Interior
Interior A * These dimensions indicated in this figure are actual-measurement dimensions. [ Unit : mm (inch) ] Interior B * These dimens ...