Hyundai Santa Fe: 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.

Intake Air Temperature Sensor (IATS). Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3...

Engine Coolant Temperature Sensor (ECTS). Specifications

Specification Temperature [°C (°F)] Resistance (kΩ) -40 (-40) 41.74 - 54.54 -30 (-22) 23...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Fan speed control. Air conditioning. OFF mode

Fan speed control The fan speed can be set as desired by pushing the fan speed control button. More air is delivered with higher fan speeds. Pressing the OFF button turns off the fan. NOTICE Operating the fan when the ignition switch is in the ON position could cause the battery to discharge...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Paddle shifter (Manual shifter mode)

The paddle shifter is available when the shift button is in the D (Drive) position or the manual shift mode. With the shift button in the D position The paddle shifter will operate when the vehicle speed is more than 6 mph. Pull the [+] or [-] paddle shifter once to shift up or down one gear and the system changes from automatic mode to manual shift mode...