GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cell 138: Buick


Object Number: 341839  Size: FS
Lighting Systems Components
Lighting System Description
Cell 138: Oldsmobile
Power Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Headlights Schematics Buick
Keyless Entry Schematics
Memory Seats Schematics Buick
Figure 2:

Cell 138: Oldsmobile


Object Number: 341843  Size: FS
Lighting Systems Components
Lighting System Description
Cell 138: Buick
Power Distribution Schematics
Ground Distribution Schematics
Headlights Schematics Oldsmobile
Keyless Entry Schematics
Memory Seats Schematics Buick