FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Pontiac
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2000
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Firefly (CANADA) L3-1.0L
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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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Relays and Sensors
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A/C Switch
A/C Switch
The A/C switch is on the heater control unit. The A/C switch signals the
A/C compressor control module
that A/C system operation has been requested.