Section 03-14: Engine Controls, Electronic | 1996 F-150, F-250, F-350, F-Super Duty Series and Bronco Vehicles Workshop Manual |
Gasoline Engines
The engine coolant temperature sensor (ECT sensor) (12A648) changes resistance in response to changing temperature of the engine coolant. The engine coolant temperature sensor resistance decreases as the engine coolant temperature increases providing a signal to the powertrain control module (PCM) (12A650) indicating the temperature of the engine coolant.