Operation CHARM
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Pontiac
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2000
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Firebird V8-5.7L VIN G
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Repair and Diagnosis
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Heating and Air Conditioning
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Control Assembly
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Description and Operation
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Air Distribution System
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BI- Level
BI- Level
Electrical power is supplied to the
blower motor
. Outside air is drawn in and heated (depending on the position of the temperature control knob). Then the airflow is split between the IP outlets and the floor outlet.