AIC 524224.09 – CAN Bus Communication Fault with RPT Control Software. John Deere System Advisory.

AIC 524224.09 (AIC )

Code: 524224.09



This error code, AIC 524224.09, indicates a communication issue between the Armrest Interface Control (AIC) software and the Rear PTO (RPT) control software. The fault involves a data transfer problem, which may be due to a malfunction within the Controller Area Network (CAN) bus system or an error in the transmitting control software. Such issues can result in incorrect or incomplete message exchanges, affecting the overall functionality of the control systems.


Due to the communication fault, the control software has limited or completely disabled certain functionalities, potentially including those related to the rear PTO operations. This preventive action helps avoid incorrect machine behavior that could arise from faulty data communication.


  • Diagnose CAN Bus System: Use diagnostic tools to thoroughly check the integrity and functionality of the CAN bus. Look for physical damage, loose connections, or corrosion at connection points which might be affecting signal integrity.
  • Check Software Configurations and Updates: Ensure that both the AIC and RPT control software are correctly configured and up-to-date. Software issues could be corrected with updates or reconfiguration to ensure compatibility and proper data handling.
  • Test Data Transmission: Conduct tests to monitor the data being transferred between the AIC and RPT control systems. This should include checking for errors in the messages received and sent over the CAN bus.
  • Resolve Identified Connectivity or Software Issues: Any identified faults in connectivity or software should be addressed promptly, either by repairing physical components or adjusting software settings.
  • Reset Systems and Comprehensive Testing: After addressing the issues, reset the affected systems to ensure all changes take effect. Perform comprehensive testing to verify that communication has been restored and that all functionalities of the control systems are operational.


Maintaining robust and reliable communication across control systems is crucial for the safe and efficient operation of machinery. Regular monitoring and maintenance of the CAN bus and associated software are essential to prevent communication failures and ensure that the equipment operates smoothly. Addressing communication issues promptly is key to minimizing downtime and maintaining operational efficiency.