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

Cell 40: Two Note


Object Number: 317455  Size: FS
Horn Component Views
Cell 40: Four Note
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
SIR Handling Caution
Power Distribution Schematics
Ground Distribution Schematics
Figure 2:

Cell 40: Four Note


Object Number: 317459  Size: FS
Horn Component Views
Cell 40: Two Note
Power Distribution Schematics
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
SIR Handling Caution
Ground Distribution Schematics