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

Vehicle Theft Deterrent (VTD)


Object Number: 1247849  Size: FS
Master Electrical Component List
Horns System Description and Operation
Content Theft Deterrent (CTD) Sensors and Sirens (UA2)
RIM and THEFT Fuses and Ignition Switch - 2 of 2
CCP (B+), DIM/ALDL, EBCM (B+), ECM/TCM, FLASHER, and VOLT CHECK Fuses
Class 2 Serial Data - 1 of 2
G200
G200
Figure 2:

Content Theft Deterrent (CTD) Sensors and Sirens (UA2)


Object Number: 1247854  Size: FS
Master Electrical Component List
Horns System Description and Operation
Content Theft Deterrent (CTD)
Vehicle Theft Deterrent (VTD)
RIM and THEFT Fuses and Ignition Switch - 2 of 2
Fuse Block - Right Rear B+ Bus
Fuse Block - Right Rear B+ Bus
Fuse Block - Left Rear B+ Bus
G402 - 1 of 2
AIRBAG, CCP (RUN), EBCM (RUN), HDLP LEVELING, IGN 1, AND IGN 3 Fuses
AIRBAG, CCP (RUN), EBCM (RUN), HDLP LEVELING, IGN 1, AND IGN 3 Fuses
FFSM, FFS SW. and THEFT Fuses and SEAT Circuit Breaker
G402 - 1 of 2
G401 - 2 of 2
Figure 3:

Content Theft Deterrent (CTD)


Object Number: 1247860  Size: FS
Master Electrical Component List
Horns System Description and Operation
Content Theft Deterrent (CTD) Sensors and Sirens (UA2)
Class 2 Serial Data - 1 of 2
Class 2 Serial Data - 2 of 2
Horns Schematic
Park Lamp Relay, Switch and Instrument Cluster (Dom, Exp) Schematic
G104