GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

BTSI Cell 138

2--Steering Wheel Column- Tilt

Cruise Controls Cell 34

6--Engine Controls

Ground Distribution Cell 14

8--Wiring Systems

Instrument Cluster Cell 80

8--Instrument Panel, Gauges and Console

Power Distribution Cell 10

8--Wiring Systems