Section 530 (Data Link Communication System)
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Data Link Communications
- Diagnostic Trouble Code (DTC) List
- DTC U0001: High Speed CAN Communication Bus
- DTC U0100 To U0299: GMLAN High Speed Serial Data Missing
- DTC U1000 and U1255: Class 2 Data Link Malfunction/Lost Communications
- DTC U1001 To U1254: Module U1XXX Communication
- DTC U1300, U1301, or U1305: Class 2 Data Link
- DTC U2105: Lost Communications with Engine Control System
- 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