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

Module Power, Ground, Indicators, Rollover/Passenger Presence Sensors


Object Number: 2077993  Size: FS
Figure 2:

Front End Sensors, Seat Belt Pretentioners, and Front Air Bags


Object Number: 2077996  Size: FS
Figure 3:

Side Impact Sensors and Roof Rail/Side Impact Air Bags


Object Number: 2078000  Size: FS