GM Service Manual Online
For 1990-2009 cars only

Object Number: 1523916  Size: FS
Master Electrical Component List
Horns System Description and Operation
Control Module References
B+ Bar Bus
G100, G101, and G102
G100, G101, and G102

Object Number: 1703203  Size: FS
Master Electrical Component List
Horn with Blackout Control Circuit Operation
G100M, G101M, G102M
G100M, G101M, G102M