GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Data Link Connector (DLC) Cell 50

8 - Wiring Systems

Ground Distribution Cell 14

8 - Wiring Systems

Lumbar Support Cell 142

8 - Seats

Power Distribution Cell 10

8 - Wiring Systems

Power Seat: Memory Cell 141

8 - Seats