Operation CHARM
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Oldsmobile
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1987
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Firenza V6-173 2.8L
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Repair and Diagnosis
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Scan Tool Testing and Procedures
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Function Selector Positions
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Fan Request
Fan Request
Displays status of A/C fan control switch. Should read ``yes'' when A/C fan switch is in on position or when A/C system pressure exceeds calibrated value; ``no'' at all other times.