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

Radio Output, Door and Ignition Switch


Object Number: 675969  Size: FS
Master Electrical Component List
Seat Belt and Headlamp Switches
Serial Data Class 2
G200 (1 of 2)
G200 (1 of 2)
Serial Data Class 2
Figure 2:

Seat Belt and Headlamp Switches


Object Number: 675973  Size: FS
Master Electrical Component List
Radio Output, Door and Ignition Switch
G200 (2 of 2)
G200 (2 of 2)
Serial Data Class 2