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) Owners Manual: Fuses

A vehicle’s electrical system is protected from electrical overload damage by fuses. This vehicle has 3 (or 4) fuse panels, one located in the driver’s side panel bolster, others in the engine compartment near the battery. If any of your vehicle’s lights, accessories, or controls do not wor ...

Kia Carens RP (2013-2018) Service Manual: Components and components location

Components 1. Clutch switch 2. Ignition lock switch 3. Clutch pedal assembly 4. Master cylinder assembly 5. Connector (Only diesel) 6. Regulator (Only diesel) 7. Clutch tube ...