RPT 000177.09 – CAN Bus Message Cannot Be Received, Information from PTA or PTD Control Software

RPT 000177.09 (RPT 177.09)

Code: 000177.09

Shortcode: 177.09


This diagnostic trouble code, RPT 000177.09, is generated when there is a data transfer problem between the RPT control software and the PTA or PTD control software. The issue arises when the RPT control software intermittently or completely fails to receive one, several, or all of the expected CAN messages. This problem is indicative of an issue with the CAN bus or the transmitting control software, potentially due to a loose wire or other communication failures.


When this error is detected, the functionality of the control software is significantly limited or entirely non-functional. This affects the overall performance of the equipment, leading to reduced efficiency or operational capability.


Inspect CAN Bus Wiring and Connections:

  • Check all wiring and connections associated with the CAN bus for signs of damage, corrosion, or loose connections.
  • Secure any loose wires and repair or replace damaged components as necessary.

Verify CAN Bus Communication:

  • Use diagnostic tools to test the CAN bus communication for any irregularities or failures.
  • Ensure that all CAN messages are being correctly transmitted and received between the RPT control software and the PTA or PTD control software.

Update Control Software:

  • Ensure that both the RPT and PTA/PTD control software are updated to the latest versions.
  • Install any available patches or updates that address CAN bus communication issues.

Consult Technical Support:

  • If the problem persists after initial troubleshooting, consult with technical support or the equipment manufacturer for further assistance.
  • Provide detailed information about the issue, including any error logs or diagnostic reports.

Monitor System Performance:

  • After performing the recommended actions, monitor the system for any recurrence of the issue.
  • Keep detailed records of any further errors or irregularities to assist in ongoing troubleshooting.


Intermittent reception issues on the CAN bus are often caused by loose wires or poor connections. Regular maintenance and inspections of the CAN bus system can help prevent such issues. Ensuring that all software is up-to-date can also mitigate many communication-related problems.

Control Units: John Deere

John Deere Parts
John Deere Logo