Body and Accessories

All Component Locator

• Data Link Communications Component Views
• Data Link Communications Components

All Description and Operation

• Data Link Communications Circuit Description

All Visual Identification

• Data Link Communications Connector End Views

Diagnostic Procedures

• Data Link Communications System Check
• Scan Tool Does Not Communicate with Class 2 Data Line
• Scan Tool Does Not Communicate with Heater and Air Conditioning (A/C) Control
• Scan Tool Does Not Communicate with UART Data Line

Diagnostic Trouble Codes

• DTC U1000 Class 2 Communication Malfunction
• DTC U1255 Class 2 Communication Malfunction
• DTC U1300 Class 2 Data Link Low
• DTC U1301 Class 2 Data Link High

Electrical/Electronic Schematic Diagrams

• Data Link Communications Schematic Icons
• Data Link Communications Schematic References
• Data Link Connector Schematics