Hyundai Accent: 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.

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the IATS connector.
3.
Measure resistance between th ...
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
48.14
-20
-4
...
See also:
Emergency towing
If towing is necessary, we recommend you to have it done by an authorized Hyundai
dealer or a commercial tow truck service.
If towing service is not available in an emergency, your vehicle may be ...
Airbag Module Disposal. Description
and Operation
Airbag Disposal
Special tool required
Deployment tool 0957A-34100A
Before scrapping any airbags or side airbags (including those in a whole
vehicle to be scrapped), the airbag ...
Removal and Installation
Water Pump
1.
Drain engine coolant.
System is under high pressure ...