GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Ground Distribution Cell 14

8 -- Wiring Systems

Power Distribution Cell 10

8 -- Wiring Systems

Engine Controls Cell 20

6 -- Engine Controls - 3.8L

Antilock Brake System or Traction Control Cell 44

5 -- Antilock Brake System