Kia Carens: 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.

Intake Air Temperature Sensor (IATS) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance betwe ...

Engine Coolant Temperature Sensor (ECTS) Specifications

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

Other information:

Kia Carens RP (2013-2018) Service Manual: Front Door Latch Repair procedures

Replacement 1. Remove the front door module. (Refer to Front Door - "Front Door Module") 2. Remove the front door outside handle base (A) by pushing in the lock pins located in the back. ...

Kia Carens RP (2013-2018) Service Manual: Front Wiper Motor Repair procedures

Removal    If you remove a wiper arm, replace it with a new one. If you reassemble the removed arm, its serration wear may cause the wiper to be set off position. If you turn on the wiper while in this ...