October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Coolant Temperature Sensor/Switch (For Computer): Description and Operation

Engine Coolant Temperature (ECT) Sensor 1 and 2
ECT sensors 1 and 2 are temperature dependent resistors (thermistors). The resistance of the thermistor decreases as the engine coolant temperature increases.