Hyundai Santa Fe (DM): 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:
Low tire pressure indicator
When the tire pressure monitoring system warning indicator is illuminated, one or more of your tires is significantly under-inflated. If the indicator illuminates, immediately reduce your speed, avoid ...
Automatic turn off function
The interior lights automatically turn off approximately 20 minutes after the ignition switch is turned off. If your vehicle is equipped with the theft alarm system, the interior lights automatically turn ...
Turn signals when towing a trailer
When you tow a trailer, your vehicle has to have a different turn signal flasher and extra wiring. The green arrows on your instrument panel will flash whenever you signal a turn or lane change. Properly ...
