Hyundai Venue: 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 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.

Repair procedures

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

Engine Coolant Temperature Sensor (ECTS). Specifications

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

Other information:

Hyundai Venue (QX) (2020-2022) Service Manual: Shift Lever. Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Pull the knob (A) in the direction of "F" and remove the knob. 3. Remove the floor console assembly...

Hyundai Venue (QX) (2020-2022) Service Manual: Specifications

Specifications Item Specifications Transaxle type A6GF1 - 2 Engine type Gasoline 1.6MPI Torque converter type 3 - element, 1 - stage, 2 - phase type Torque converter size Ø236 mm (9...