GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Backup Lights Cell 112

8 -- Lighting System

Data Link Connector Cell 50

8 -- Wiring Systems

Exterior Lights Cell 110

8 -- Lighting Systems

Ground Distribution Cell 14

8 -- Wiring Systems

Horns Cell 40

8 -- Horns

Power Distribution Cell 10

8 -- Wiring Systems

Starting and Charging Cell 30

6 -- Engine Electrical