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

Sensor--mounted in the engine coolant stream--supplies a varying DC voltage to the ECM representing engine temperature.
- Sensor resistance is high when the engine is cold and low when the engine is warm.
The ECM controls temperature dependent systems accordingly.