Engine Oil Temperature Sensor
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2002 Mercury Sable, 2002 Mercury Mountaineer, 2002 Mercury Grand Marquis, 2002 Mercury Cougar, and 2002 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Engine Oil Temperature (EOT) sensor is a thermistor device which changes resistance proportionate to temperature changes. Resistance increases as engine oil temperature decreases and decreases as engine oil temperature increases. EOT sensor provides engine oil temperature to PCM. On some applications, EOT sensor input to PCM is used to initiate a soft engine shutdown. This prevents engine damage from occurring as a result of high oil temperature.