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

Vehicle Theft Deterrent


Object Number: 1458727  Size: FS
Master Electrical Component List
Vehicle Theft Deterrent (VTD) Description and Operation
Control Module References
Content Theft Deterrent
Data Link Connector Schematics
Indicator and DIC Controls
Figure 2:

Content Theft Deterrent


Object Number: 1458730  Size: FS
Master Electrical Component List
Content Theft Deterrent (CTD) Description and Operation
Control Module References
Vehicle Theft Deterrent
Indicator and DIC Controls
Data Link Connector Schematics
G300
G301, G302