For 1990-2009 cars

Reference on Schematic | Section Number - Subsection Name
--- | ---
Engine Controls Cell 20 | 6 -- Engine Controls - 3.8L
Exterior Lights Cell 110 (Buick) | 8 -- Lighting Systems
Exterior Lights Cell 110 (Oldsmobile) | 8 -- Lighting Systems
Exterior Lights Cell 110 (Pontiac) | 8 -- Lighting Systems
Ground Distribution Cell 14 | 8 -- Wiring Systems
Instrument Cluster Cell 81 (Buick w/UB3) | 8 -- Instrument Panel, Gauges and Console
Instrument Cluster Cell 81 (Buick w/U23) | 8 -- Instrument Panel, Gauges and Console
Power Distribution Cell 10 | 8 -- Wiring Systems