PTI 002005.09 – ACU Message Missing

PTI 002005.09 (PTI 2005.09)

Code: 002005.09

Shortcode: 2005.09


This error code indicates that CAN messages from the ACU are not being received.


The control unit commands the equipment to enter Park mode, which is recoverable.


  • Inspect CAN Wiring:
    • Check the CAN bus wiring for any signs of damage, disconnections, or corrosion.
    • Ensure all connections to the ACU are secure and intact.
  • Test CAN Bus Communication:
    • Use diagnostic tools to test the CAN bus communication and ensure messages are being transmitted correctly.
  • Verify ACU Functionality:
    • Ensure the ACU is powered on and functioning properly.
    • Reboot the ACU or perform a software update if necessary.
  • Replace Damaged Components:
    • Replace any damaged or faulty wiring or connectors that could be causing the communication issue.


Proper CAN bus communication with the ACU is essential for the smooth operation of the equipment’s control systems.

Control Units: John Deere

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