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

Cell 138: Buick


Object Number: 483100  Size: FS
Tilt Wheel/Column Components
Automatic Transmission Shift Lock Control Description
Cell 138: Oldsmobile
Power Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Tilt Wheel/Column Connector End Views
Headlights Schematics Buick
Keyless Entry Schematics
Tilt Wheel/Column Connector End Views
Memory Seats Schematics Buick
Figure 2:

Cell 138: Oldsmobile


Object Number: 483105  Size: FS
Tilt Wheel/Column Components
Automatic Transmission Shift Lock Control Description
Cell 138: Buick
Power Distribution Schematics
Ground Distribution Schematics
Headlights Schematics Oldsmobile
Keyless Entry Schematics
Memory Seats Schematics Oldsmobile
Tilt Wheel/Column Connector End Views