GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Cruise Control Cell 34

8 -- Cruise Control

Data Link Connector (DLC) Cell 50

8 -- Data Link Communications

Ground Distribution Cell 14

8 -- Wiring Systems

Instrument Cluster Cell 81

8 -- Instrument Panel, Gauges and Console

Power Distribution Cell 10

8 -- Wiring Systems