GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 CTS 🢒 Safety and Security 🢒 Remote Functions 🢒 Remote Function Schematics
Figure 1:

Remote Functions
Object Number: 1787453 Size: FS
Master Electrical Component List
Immobilizer Description and Operation
Control Module References
Garage Door Opener (GDO) (UGDO)
Underhood Fuse Block B+ BUS 2 of 2
Underhood Fuse Block B+ BUS 2 of 2
Left Rear Fuse Block Seat Circuit Breaker, Trunk Relay/Fuse, Amp, Audio, Driver Dr MOD, and Rear DR MOD Fuse
Class 2 Serial Data Bus - LHD (2 of 2)
Figure 2:

Garage Door Opener
Object Number: 1787456 Size: FS
Master Electrical Component List
Immobilizer Description and Operation
Control Module References
Remote Functions
Underhood Fuse Block B+ BUS 2 of 2
Left Rear Fuse Block Seat Circuit Breaker, Trunk Relay/Fuse, Amp, Audio, Driver Dr MOD, and Rear DR MOD Fuse
Left Rear Fuse Block Seat Circuit Breaker, Trunk Relay/Fuse, Amp, Audio, Driver Dr MOD, and Rear DR MOD Fuse
Overhead Courtesy Lamps, Dome Lamp, and Vanity Lamps
Overhead Courtesy Lamps, Dome Lamp, and Vanity Lamps
G402 (1 of 2)