Section 85 (Data Link Communication System)
WARNING: This page is about a different car, the 2004 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Trouble Code (DTC) List
- DTC U1000 and U1255: Class 2 Communication Malfunction
- DTC U1001 To U1254: Lost Communications With U1XXX
- DTC U1300, U1301, or U1305: Class 2 Data Link Shorted
- Symptoms - Data Link Communications
- Scan Tool Does Not Power Up
- Scan Tool Does Not Communicate with Class 2 Device
- Description and Operation