GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Cruise Control - Cell 34

8 - Cruise Control Systems

Data Link Control (DLC) - Cell 50

8 - Data Link Communication

Exterior Lighting - Cell 110

8 - Lighting Sytems

Ground Distribution - Cell 14

8 - Wiring Systems

Interior Lighting Dimming - Cell 117

8 - Lighting Systems

Power Distribution - Cell 10

8 - Wiring Systems