Operation CHARM
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Cadillac
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1999
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DeVille d Elegance V8-4.6L VIN Y
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Repair and Diagnosis
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Heating and Air Conditioning
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Description and Operation
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Operating Modes
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Heater Mode
Heater Mode
Air flow is directed to the heater outlets with bleed to the defrost outlets. The A/C clutch engages when the outside temperature is above
6°C
(
42°F
) in order to help dehumidify the air.