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

Theft - DLC


Object Number: 1619712  Size: FS
Master Electrical Component List
Vehicle Theft Deterrent (VTD) Description and Operation
Control Module References
Content Theft Deterrent (CTD) System
GMLAN High Speed - Domestic w/ UE1
Starting System - LY7
Starting System - LH2
Fuel Controls - Fuel Pump and Injectors
Injectors and Pump
GMLAN Low Speed (2 of 2)
GMLAN Low Speed (1 of 2)
Figure 2:

Content Theft Deterrent (CTD) System


Object Number: 1619713  Size: FS
Master Electrical Component List
Content Theft Deterrent (CTD) Description and Operation
Control Module References
Door Modules and Horn
DLC
Fuse Block Left Rear: TV/VICS, ELC SOL, ESC Module, Driver Door Module, Rear Door Module, Theft/Shifter and AMP Fuses
Fuse Block Left Rear Bussing
Fuse Block Left Rear: TV/VICS, ELC SOL, ESC Module, Driver Door Module, Rear Door Module, Theft/Shifter and AMP Fuses
Fuse Block Right Rear: LT Turn Signal, RIM(1), Rear Fog Lamp, FT Passenger Door Module, Heated Steering Column, IGN 1, RIM(2) and Airbag Fuses; Rear Fog Lamp and IGN 1 Relays
G401 (1 of 2)
Figure 3:

Door Modules and Horn


Object Number: 1619714  Size: FS
Master Electrical Component List
Content Theft Deterrent (CTD) Description and Operation
Control Module References
Content Theft Deterrent (CTD) System
GMLAN Low Speed (1 of 2)
GMLAN Low Speed (2 of 2)
Horn Schematics
Park Lamp Relay, Switch and Instrument Cluster - Domestic