GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Allure 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Data Communication Schematics
Figure 1:

L26
Object Number: 1803174 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Data Link Connector (DLC) Schematics LY7
Fuse Block - Underhood BATT MAIN 1 Fuse
Fuse Block - Underhood BATT MAIN 1 Fuse
G200
G202
Data Communication Schematic Icons
Figure 2:

LY7
Object Number: 1803181 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Data Link Connector Schematics L26
Fuse Block - Underhood BATT MAIN 1 Fuse
Fuse Block - Underhood BATT MAIN 1 Fuse
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons
Data Communication Schematic Icons
G200
G202