Data Link Communications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Data Link Communications
- Diagnostic Trouble Code (DTC) List
- DTC U1000 and U1255: Class 2 Data Link
- DTC U1001 To U1254: Module U1XXX Communication
- DTC U1300, U1301, or U1305: Class 2 Data Link
- DTC U2100: CAN Bus Error With Engine Control System
- DTC U2103 or U2104: Fewer Controllers On Bus Than Programmed, Or Controller Area Network (CAN) Bus Reset Counter Overrun
- DTC U2105: Lost Communications With Engine Control System
- DTC U2106: Lost Communications With Transmission Control System
- Symptoms - Data Link Communications
- Scan Tool Does Not Power Up
- Scan Tool Does Not Communicate with Class 2 Device
- Scan Tool Does Not Communicate with CAN Device
- Description and Operation