GMC Workshop Service and Repair Manuals > Sierra Classic 2500 2WD V8-6.6L DSL Turbo (2007) > Relays and Modules | Relays and Modules - HVAC | Control Module HVAC | Component Information | Diagrams | HVAC System - Automatic | Page 636

HVAC System - Automatic|Page 637 > < HVAC System - Automatic|Page 635

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HVAC Control Module - C1 (Pin B8 - B12)

HVAC Control Module - C2

Relays and Modules
Relays and Modules - HVAC
Control Module HVAC / Component Information
Diagrams / HVAC System - Automatic
Page 636

HVAC System - Automatic|Page 637 > < HVAC System - Automatic|Page 635