GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Power Distribution Cell 10

8 -- Wiring Systems

Ground Distribution Cell 14

8 -- Wiring Systems

Data Link Connector Cell 50

8 -- Data Link Connector

Electronic Compass Cell 84

8 -- Instrument Panel Gauges and Console

Instrument Panel Dimming Cell 117

8 -- Lighting Systems