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 th ...

Engine Coolant Temperature Sensor (ECTS). Specifications

Specification Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 ...

See also:

Accelerator Position Sensor (APS). Description and Operation
Description Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important senso ...

Seats
Driver’s seat (1) Forward and backward (2) Seatback angle (3) Seat cushion height (4) Lumbar support* (5) Seat warmer* (6) Headrest Front passenger’s seat (7) Forward and backward (8) S ...

Sound settings
Press the key - Select [Sound] through TUNE knob or key Select menu through TUNE knob Sound Settings This menu allows you to set the ‘Bass, Middle, Treble’ and the Sound Fader and Bala ...