Hyundai Santa Fe: 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.
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 specification. Specification: ...
Engine Coolant Temperature Sensor (ECTS). Specifications
Specification Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 14.13 ~ 16.83 0 32 5.79 20 68 2.31 ~ 2.59 40 104 1.15 60 140 0.59 80 176 0.32 ...
See also:
Key operations
Used to start the engine. Used to lock and unlock the doors. Used to lock and unlock the glove box. To unfold the key, press the release button then the key will unfold automatically. To fold the key, ...
Front Door Outside Handle. Components and Components Location
Component Location 1. Front door outside handle ...
Timing Chain Cover. Repair procedures
Removal • Use fender covers to avoid damaging painted surfaces. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion. Mark all wiring and hoses to avoid misconnection. ...
