ATC 002156.09 – Incorrect CAN BUS Message, Information from Power Module (HF) PC6. John Deere System Advisory.

ATC 02156.09 (ATC 2156.09)

Code: 02156.09

Shortcode: 2156.09


The error code, ATC 002156.09, is generated due to data transfer issues between the power module (HF) PC6 and the Automatic Temperature Control (ATC) unit. This problem involves intermittent or nonexistent reception of one or more CAN messages transmitted by the power module (HF) PC6. Such issues could be caused by loose wires or connectivity problems within the CAN BUS network.


The communication error may cause the ATC system to receive incorrect or incomplete data from the power module, potentially leading to malfunctions in temperature control operations or other systems relying on this data.


  • Inspect CAN BUS Connections: Examine all CAN BUS connections between the power module (HF) PC6 and the ATC unit for signs of looseness, corrosion, or damage.
  • Test CAN BUS Integrity: Use diagnostic tools to assess the integrity and functionality of the CAN BUS, searching for errors or poor connections that could disrupt communication.
  • Secure Loose Wiring: Ensure that all wiring is properly secured and making good contact. Tighten any loose connections and replace damaged wires or connectors.
  • Reprogram or Reset Modules: If necessary, reprogram or reset the affected modules to ensure correct settings and proper communication.
  • Monitor System Performance: After making the necessary repairs, monitor the system to ensure that the CAN BUS messages are being transmitted and received without interruption and that all systems are functioning correctly.


Maintaining effective communication between control systems is essential for the optimal operation of machinery. Regular monitoring and maintenance of the CAN BUS system and associated electronics are critical to preventing communication failures and ensuring that the equipment operates efficiently and reliably. Addressing communication issues promptly is crucial to minimizing downtime and enhancing operational efficiency.