Section 127 (Data Communication System)
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Data Communications
- DTC B1000
- DTC B1001
- DTC B1009
- DTC B1013
- DTC B1014
- DTC B1390
- DTC C0550
- DTC U0001
- DTC U0100 - U0299
- DTC U1000 and U1255
- DTC U1001-U1254
- DTC U1300, U1301, or U1305
- DTC U2100
- DTC U2105-U2199
- Symptoms - Data Communications
- Scan Tool Does Not Power Up
- Scan Tool Does Not Communicate with Class 2 Device
- Scan Tool Does Not Communicate with High Speed GMLAN Device
- Data Link References
- Repair Instructions
- Description and Operation