Hyundai Elantra: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and Operation

Hyundai Elantra AD (2016-2020) 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.

Intake Air Temperature Sensor (IATS) Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance between the IATS terminals 3 and 4. 4. Check that the resistance is within the speci ...

Engine Coolant Temperature Sensor (ECTS) Specifications
Specification TemperatureResistance (k?)°C°F-40-4048.14-20-414.13 ~ 16.830325.7920682.31 ~ 2.59401041.15601400.59801760.32 ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Rear Transverse Trim Repair procedures
Replacement     • Put on gloves to prevent hand injuries.     • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. • When removing the interior trim pieces, use a ...

Hyundai Elantra AD (2016-2020) Service Manual: AVN Remote Controller Repair procedures
Inspection 1. Check for resistance between terminals in each switch position (LH). [LH : Audio + Hands free] SwitchConnector terminalResistance(±5%)SEEK Up2-5430 ?SEEK Down1.11 k?MODE2.11 k?MUTE3.11 k?Volume (+)4.61 k?Volume (-)6.81 k?Voice10.71 k?SEND18.91 k?END40.91 k? 2. Check for re ...

© 2018-2026 www.helantraad.com