GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 DTS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Data Communication Schematics
Figure 1:

DLC Power Ground and Low Speed GMLAN
Object Number: 1759778 Size: FS
Data Link Communications Description and Operation
High Speed Serial Data
Rear Fuse Block - PRK LAMP, RT PRK LAMP (Export), EXP LIC LAMP Relays, I/P HARN MDL, LT PRK LAMP, RT PRK LAMP Fuses
Rear Fuse Block B+
Data Communication Schematic Icons
G300
G300
Figure 2:

DLC High Speed Serial Data
Object Number: 1759781 Size: FS
Data Link Communications Description and Operation
High Speed Serial Data, Wake Up
Power, Ground and Low Speed GMLAN
Data Communication Schematic Icons
Figure 3:

DLC High Speed Serial Data Wake Up
Object Number: 1759784 Size: FS
Data Link Communications Description and Operation
Local Interconnect Network (LIN)
High Speed Serial Data
Figure 4:

Local Interconnect Network (LIN)
Object Number: 1759789 Size: FS
Data Link Communications Description and Operation
High Speed Serial Data, Wake Up
Power, Ground and Low Speed GMLAN