DSM 523609.10 — Hotkey 15, Fault

DSM 523609.10 (DSM )

Code: 523609.10



This diagnostic trouble code is triggered if Hotkey 15 remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the key is registered as “actuated” for more than 10 minutes during operation. Hotkeys are typically used for quick access to specific functions or settings, enhancing operational efficiency.


If Hotkey 15 remains actuated beyond the specified durations, the control unit may disable the functionality associated with Hotkey 15 to prevent unintentional or unsafe operations, potentially affecting the ability to quickly access specific functions.


  • Inspect Hotkey Mechanism: Examine the physical condition of Hotkey 15 for signs of sticking, damage, or wear that could cause it to remain actuated.
  • Test Hotkey Functionality: Use diagnostic tools to verify the proper operation of Hotkey 15. Ensure it accurately registers presses and releases.
  • Check Electrical Connections: Inspect the electrical connections to Hotkey 15 to ensure they are secure and free from corrosion or damage.
  • Update Control Software: Ensure that the control unit software is up-to-date, as updates may include fixes or improvements for hotkey management.
  • Replace Faulty Components: If the hotkey or its associated wiring and connectors are faulty, replace them with new or known-good parts.
  • Perform System Reset: After resolving the issue, reset the control unit to clear the fault code and verify normal hotkey operation through comprehensive testing.


Maintaining the proper functionality of hotkeys is essential for efficient equipment operation. Regular inspection and timely maintenance of the hotkey mechanisms can prevent faults and ensure reliable control inputs.

Control Units: John Deere

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