GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Primary Blower and Air Delivery Controls


Object Number: 1906935  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
Control Module References
Compressor Controls
Figure 2:

Compressor Controls


Object Number: 1906938  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Primary Blower and Air Delivery Controls