ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Electrical Specifications|Page 652 > < Electrical Specifications|Page 650
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Coolant Temperature Sensor/Switch (For Computer): Description and Operation

PURPOSE

The Engine Coolant Temperature (ECT) sensor measures varying engine coolant operating temperatures.

OPERATION

The ECT sensor changes resistance in response to the engine coolant temperature. Resistance decreases as the surrounding temperature increases
providing a signal to the Powertrain Control Module (PCM) that indicates the engine coolant temperature.

Electrical Specifications|Page 652 > < Electrical Specifications|Page 650