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

Vehicle Theft Deterrent (VTD) System


Object Number: 1441829  Size: FS
Master Electrical Component List
Vehicle Theft Deterrent (VTD) Description and Operation
Content Theft Deterrent (CTD) System
Battery Feed to Left and Right Underhood Fuse Blocks
CRK, PCM/CRU and SBM Fuses
CRK, PCM/CRU and SBM Fuses
CRK, PCM/CRU and SBM Fuses
Class 2 Serial Data Lines
G202 - 1 of 4
G202 - 2 of 4
Figure 2:

Content Theft Deterrent (CTD) System


Object Number: 1442864  Size: FS
Master Electrical Component List
Content Theft Deterrent (CTD) Description and Operation
Door Latch Switches
Vehicle Theft Deterrent (VTD) System
Battery Voltage Supply to Underhood Fuse Blocks
OXY SEN and SBM LCM Fuses
WSW/RFA and WSW Fuses
WSW/RFA and WSW Fuses
PWR SEAT Circuit Breaker, MEM/RFA and BAT 2 Fuses
Class 2 Serial Data Lines
Horns Schematics
Indicators
Figure 3:

Door Latch Switches


Object Number: 1442865  Size: FS
Master Electrical Component List
Content Theft Deterrent (CTD) Description and Operation
Content Theft Deterrent (CTD) System
Class 2 Serial Data Lines