GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2009
🢒
Enclave
🢒
Diagnostic Navigation
🢒
Vehicle Diagnostic Information
🢒 Data Communication Schematics
Figure
1:
Low Speed GMLAN
Figure
2:
High Speed GMLAN
Figure
3:
Communication Enable and Local Interconnect Network (LIN)