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

Supplemental Inflatable Restraint (SIR) Cell 47

9 - SIR

Data Link Connector (DLC) Cell 50

8 - Data Link Communications

Body Control Module (BCM) Cell 51

8 - Body Control System