Operation CHARM
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Porsche
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1989
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928 CS V8-4957cc 5.0L
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - HVAC
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Control Module HVAC
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Service and Repair
Control Module HVAC: Service and Repair
Removing and Installing
Control Unit
1.
Pull off both plugs.
2.
Unscrew front and rear mounting bolts. Pull out
control unit
downward and disconnect operating rod at bottom.