Kia Soul: Engine Coolant Temperature Sensor (ECTS). Description and Operation - Engine Control System - Engine Control / Fuel SystemKia Soul: Engine Coolant Temperature Sensor (ECTS). Description and Operation

Kia Soul 2014-2019 PS Service Manual / Engine Control / Fuel System / Engine Control System / Engine Coolant Temperature Sensor (ECTS). Description and Operation

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 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.
55555

    Intake Air Temperature Sensor (IATS). Repair procedures
    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance between th ...

    Engine Coolant Temperature Sensor (ECTS). Specifications
    Specification Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 14.13 ~ 16.83 0 ...

    See also:

    Installation
    1. Connect the connectors and install the BCM. 2. Install the glove box housing and audio/AVN head unit. ...

    Glove box lamp
    The glove box lamp comes on when the glove box is opened. To prevent unnecessary charging system drain, close the glove box securely after using the glove box. ...

    Curtain Airbag (CAB) Module. Description
    Curtain airbags are installed inside the headliner (LH and RH) and protect the driver and passenger from danger when side crash occurs. The SRSCM determines deployment of curtain airbag by us ...