GM Service Manual Online
For 1990-2009 cars only

VTD System

Vehicle Theft Deterrent (VTD) System


Object Number: 808771  Size: FS
Master Electrical Component List
Theft Systems Description and Operation
CTD Inputs and Outputs
ALDL, PCM BATT, IP Fuses
RR BLO, RR DR MDL, HVAC, Stop LP, IGN SW, and TSIG/HAZ Fuses
Ignition Switch
Ignition Switch
G201 1 of 3
G201 1 of 3
Class 2 Serial Data (3 of 3)