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

Air Temperature Control


Object Number: 473802  Size: FS
HVAC Components
HVAC Air Delivery/Temperature Control Circuit Description
Ground Distribution Schematics
Ground Distribution Schematics
Handling ESD Sensitive Parts Notice
HVAC Vacuum Schematics
Figure 2:

Air Delivery and Vacuum Schematics


Object Number: 739802  Size: FS
Air Temperature Control
Master Electrical Component List