GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 XLR 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Data Communication Schematics
Figure 1:

Power, Ground, and Class 2
Object Number: 1899355 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
GMLAN
BATT3, STOP/B/U/LPS, BTSI SOL/COL LOCK, RADIO, S-BAND/VICS, PWR FLDG MIR - EXT RET, REAR FOG/ALDL, REVERESE LAMPS Fuses, and REVERSE LAMP Relay
Master Electrical Schematic Icons
G104, and G106
G201
Figure 2:

GMLAN
Object Number: 1899363 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Power, Ground, and Class 2