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Home >> Ford >> 2002 >> Focus ZX5, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1889 (Automatic Transmission - 5R110W -- F250-F550 Super Duty) >> Description And Operation >> Transmission Electronic Control System >> Engine Coolant Temperature (ECT ) Sensor

Engine Coolant Temperature (ECT ) Sensor

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The engine coolant temperature (ECT) sensor is a 2-wire thermistor sensor which changes resistance as temperature changes. The resistance of the sensor increases as engine temperature decreases and the voltage sent to the PCM increases. The PCM uses this information to help determine TCC operation.

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