GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 CTS 🢒 Driver Information and Entertainment 🢒 Displays and Gages 🢒 Driver Information System Schematics
Figure 1:

Driver Information Center (DIC) System (LP1/LY7)
Object Number: 1788350 Size: FS
Master Electrical Component List
Driver Information Center (DIC) Description and Operation (CTS and CTS-V)
Control Module References
Driver Information Center (DIC) System 6.0L (LS2)
Steering Wheel Controls - LP1/LY7 (2.8L/3.6L)
Class 2 Serial Data Bus - LHD (2 of 2)
Figure 2:

Driver Information Center (DIC) System - 6.0L (LS2)
Object Number: 1788353 Size: FS
Master Electrical Component List
Driver Information Center (DIC) Description and Operation (CTS-V only)
Control Module References
Driver Information Center (DIC) System (LP1/LY7)
SIR Schematic Icons
Class 2 Serial Data Bus - LHD (1 of 2)