Crown Victoria V8-4.6L VIN W (2000)
With the use of a microcontroller, the Electronic Automatic Temperature Control (EATC) module analyzes input from the following major sources:
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temperature, function and blower selection (made by the vehicle occupants)
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in-vehicle temperature sensor
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ambient temperature sensor
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sunload sensor
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vehicle speed sensor
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engine coolant temperature sensor
Using these inputs, the microcontroller determines the correct conditions for the following outputs:
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A/C clutch engagement
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blower speed
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air temperature blend door position
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floor/panel door position
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panel/defrost door position
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air inlet duct door position