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

Pontiac


Object Number: 1403242  Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
Buick
Fuse Block Underhood Fuse: 27, 31, 33 Fuse Block Center Console
Fuse Block Underhood Fuse: 27, 31, 33 Fuse Block Center Console
Data Link Connector (DLC) Schematics
Figure 2:

Buick


Object Number: 1403243  Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
Pontiac
Fuse Block Underhood Fuse: 27, 31, 33 Fuse Block Center Console
Fuse Block Underhood Fuse: 27, 31, 33 Fuse Block Center Console
Data Link Connector (DLC) Schematics