Operation CHARM
: Car repair manuals for everyone.
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Chevrolet
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1987
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Cavalier/Z24 V6-173 2.8L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Function Selector Positions
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Fan Request
Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the logical successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la
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.