Hyundai Venue (QX): Engine Control System / Engine Coolant Temperature Sensor (ECTS). Description and operation

Hyundai Venue (QX) (2020-2026) 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 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.

Hyundai Venue. Engine Coolant Temperature Sensor (ECTS). Description and operation

    Inspection 1. Turn ignition switch OFF. 2. Disconnect IATS connector. 3. Measure resistance between IATS terminals 3 and 4.

    Specification Temperature [°C (°F)] Resistance (kΩ) -40 (-40) 48.14 -20 (-4) 14.

    Other information:

    Hyundai Venue (QX) (2020-2026) Service Manual: Description and operation

    Description and Operation Blcok Diagram    • This system monitors the driving situations through the radar and the camera. Thus, for a situation out of the sensing range, the system may not normally operate.

    Hyundai Venue (QX) (2020-2026) Service Manual: Rear Corner Radar Unit. Repair procedures

    Removal    lf replacement of the rear corner radar unit bracket or extension wire is required, replace the defective part only with a new one. 1.

    Categories

     
    Copyright © 2026 www.hvenueqx.com - 0.0213