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
BTSI, CRUISE, IGN 1 MAIN, and TRN SIG Fuses
BTSI, CRUISE, IGN 1 MAIN, and TRN SIG Fuses
Data Link Connector (DLC) Schematics
Figure 2:

Buick


Object Number: 1553621  Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
Pontiac
BTSI, CRUISE, IGN 1 MAIN, and TRN SIG Fuses
BTSI, CRUISE, IGN 1 MAIN, and TRN SIG Fuses
BTSI, PT RLY, and PT SENSORS Fuses - 3.6L
B+ Bus - 2 of 2
INJ EVEN, INJ ODD, and O2/MAF SENS Fuses - 3.6L
Data Link Connector (DLC) Schematics