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

Module Power, Ground, Serial Data, and Blower Motor


Object Number: 2081805  Size: FS
Figure 2:

Compressor Controls


Object Number: 2081807  Size: FS
Figure 3:

Air Delivery/Temperature Actuators


Object Number: 2081809  Size: FS
Figure 4:

Rear Mode Controls


Object Number: 2081812  Size: FS