LeSabre V6-231 3.8L VIN L SFI (1992)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Engine Coolant Temperature Sensor
The engine Coolant Temperature Sensor (CTS) is a thermistor that is located in the engine coolant flow. When the coolant temperature is low, the sensor
produces a high resistance. When the coolant temperature is high, the sensor produces a low resistance. Each resistance value correlates to a specific
engine coolant temperature. The PCM measures the resistance and calculates the engine temperature.
