PTP 002005.09 – ACU Message Missing

PTP 002005.09 (PTP 2005.09)

Code: 002005.09

Shortcode: 2005.09


This error code is generated when the PTP control unit does not receive CAN messages from the ACU (Auxiliary Control Unit). This indicates a communication issue between the PTP and the ACU.


The control unit commands the transmission to park, which is recoverable.


  • Check CAN Bus Connections:
    Inspect the CAN bus wiring and connectors between the PTP and ACU for any signs of damage, loose connections, or corrosion. Repair or replace as necessary.
  • Verify ACU Function:
    Ensure that the ACU is powered on and functioning correctly. Check for any ACU-related error codes.
  • Test Communication:
    Use diagnostic tools to test the CAN bus communication between the PTP and ACU. Ensure that messages are being transmitted and received correctly.
  • Consult Technical Support:
    If the issue persists, consult technical support or the manufacturer for further assistance.


Reliable communication between the PTP and ACU is essential for proper vehicle operation. Regular maintenance of the CAN bus system can help prevent communication issues.

Control Units: John Deere

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