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

Cell 133: VTD PASS-Key System


Object Number: 130727  Size: FS
Theft Deterrent System Components
Vehicle Theft Deterrent (VTD)Circuit Description
Cell 133: CTD Door Switch Inputs
Cell 10: Battery - Rear Fuse(Junction) Block
Cell 10: PCM BATT, EXPORT BRK, IP, ABS SOL, and ABS MOT Fuses
Cell 10: START Circuit Breaker and ACC, WSW Fuses
Power Distribution Schematics
Cell 14: G401 (3 of 3)
Cell 30: Starter Solenoid Controls
Cell 50: Class Serial Data Line (2 of 2)
Cell 14: G201 (1 of 2)
Figure 2:

Cell 133: CTD Door Switch Inputs


Object Number: 130723  Size: FS
Theft Deterrent System Components
Content Theft Deterrent (CTD) Circuit Description
Cell 133: CTD Outputs, Tamper Switches, and Class 2
Cell 133: VTD PASS-Key System
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 3:

Cell 133: CTD Outputs, Tamper Switches, and Class 2


Object Number: 260178  Size: FS
Theft Deterrent System Components
Content Theft Deterrent (CTD) Circuit Description
Cell 133: CTD Door Switch Inputs
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Cell 14: G402 (1 of 2)
Cell 14: G104
Cell 40 - Power, Ground, Horn Sw, Horns and DIM
Cell 50: Class Serial Data Line (1 of 2)
Cell 110: Hazard Switch Assembly