Description:

This diagnostic trouble code, RPT 523815.09, is generated when there is a data transfer problem between the PAP (Power Accessory Point) control software and the RPT 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 from the PAP. This problem indicates an issue with the CAN bus, possibly due to a loose wire or other communication failures.

Reaction:

When this error is detected, the functionality of the control software is significantly limited or entirely non-functional.

Recommendations:

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 PAP control software and the RPT control software.

Update Control Software:

• Ensure that both the PAP and RPT 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.

Note:

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.