Stai sis daviklis duoda informacija kompui kokia variklio temperatura. Nuo jo priklausys ir laisvu apsisukimu reguliatoriaus darbas ir kiti parametrai.
Kaip pasitikrinti su testeriu:
First, disconnect the ECT sensor harness connector and check the resistance between terminals 1 and 2 of the sensor;
•   At approximately 20oC coolant temperature, the resistance should be about  2.5k ohms.
•   At approximately 80oC coolant temperature, the resistance should be about  330 ohms.
If the specified values are not obtained, replace the sensor.
If the values are obtained but there is still a problem, check the resistance between the ECT sensor connector pin 2 and ground: Specified value: no greater than 1 ohm.