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

w/Console Shift


Object Number: 661978  Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
w/Column Shift
G201 IP Harness and Console Harness
G201 IP Harness and Console Harness
Ignition Feeds to Underhood and Rear Fuse Blocks
G301
IGN 3 Fuses
PRK/REV, PRK BRK, and RR DEFOG Fuses
IGN 3 Fuses
Ignition Feeds to Underhood and Rear Fuse Blocks
Ignition Feeds to Underhood and Rear Fuse Blocks
RR BLO, RR DR MDL, HVAC, Stop LP, IGN SW, and TSIG/HAZ Fuses
Ignition Switch
Class 2 Serial Data (1 of 3)
Figure 2:

w/Column Shift


Object Number: 661981  Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
Reverse Lockout Actuator Control
w/Console Shift
PRK/REV, PRK BRK, and RR DEFOG Fuses
G200
G200
Ignition Feeds to Underhood and Rear Fuse Blocks
Ignition Feeds to Underhood and Rear Fuse Blocks
PRK/REV, PRK BRK, and RR DEFOG Fuses
RR BLO, RR DR MDL, HVAC, Stop LP, IGN SW, and TSIG/HAZ Fuses
Ignition Switch
Class 2 Serial Data (1 of 3)
Figure 3:

Reverse Lockout Actuator Control


Object Number: 661984  Size: FS
Master Electrical Component List
Reverse Lockout System Description and Operation
w/Column Shift
F/PMP and REV/LK Fuses
G201 IP Harness and Console Harness
G201 IP Harness and Console Harness
Ignition Feeds to Underhood and Rear Fuse Blocks
Ignition Feeds to Underhood and Rear Fuse Blocks