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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2012
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Express 3500 V8-6.6L DSL Turbo
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Repair and Diagnosis
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Heating and Air Conditioning
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Relays and Modules - HVAC
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Control Module HVAC
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Diagrams
Control Module HVAC: Diagrams
Component Connector End Views
HVAC Control Module - Auxiliary (C69 with Rear Auxiliary Controls)