DTI 002005.09 – CAN Bus Communication Error with UIC

DTI 002005.09 (DTI 2005.09)

Code: 002005.09

Shortcode: 2005.09


This diagnostic trouble code (DTC) highlights a data transfer problem between the User Interface Controller (UIC) and the DTI. It involves intermittent or non-existent reception of one or more CAN messages from the UIC, likely due to loose wiring or connection issues. Disruptions in communication can lead to incorrect or missing interface commands, affecting the user experience and control functionalities.


The DTI may display error messages or experience reductions in user interface functionality, potentially complicating the control and operation of the machine.


  • Examine CAN Bus Connections: Check all related connections and wiring for the CAN bus system, ensuring they are secure and undamaged.
  • Utilize Diagnostic Tools: Use tools to diagnose and troubleshoot issues within the CAN bus system to restore proper communication.
  • Verify UIC Operation: Confirm that the UIC is fully functional and correctly transmitting all required information to the DTI.


Maintaining the integrity of the CAN bus and ensuring robust connections among all units are essential for optimal equipment operation and user interface performance. Regular checks and proactive maintenance are recommended to avoid communication issues.

Control Units: John Deere

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