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

Power, Ground, DLC, and Splice Pack SP205


Object Number: 1779039  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Splice Pack SP207
Splice Pack SP207
B+ Bus Bar
CIG LTR, EAP, INFO, and RVC Fuses
G115 and G200 - 1 of 2
G203 - 1 of 2
Figure 2:

Splice Pack SP207


Object Number: 1779060  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GM LAN 8.1L and Diesel
Power, Ground, DLC and Splice Pack SP205
Power, Ground, DLC and Splice Pack SP205
Figure 3:

High Speed GM LAN Serial Data 8.1L and Diesel


Object Number: 1779063  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GM LAN (HP2)
Splice Pack SP207
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons
Figure 4:

High Speed GM LAN (HP2)


Object Number: 1779069  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GM LAN 8.1L and Diesel
Power, Ground, DLC and Splice Pack SP205
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons