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

Low Speed GMLAN
Object Number: 1764956 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GMLAN
AMP, BCM, CHMSL/DM/LAMP, HVAC/RFA and RDO Fuse
AMP, BCM, CHMSL/DM/LAMP, HVAC/RFA and RDO Fuse
AMP, BCM, CHMSL/DM/LAMP, HVAC/RFA and RDO Fuse
G201
G203, G205, G207
Figure 2:

High Speed GMLAN
Object Number: 1764961 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Communication Enable
Low Speed GMLAN
Figure 3:

Communication Enable
Object Number: 1844559 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GMLAN