DSM 523536.10 — Hotkey for Hydraulic Flow Rate Adjustment, Fault

DSM 523536.10 (DSM )

Code: 523536.10



This diagnostic trouble code is triggered if the hotkey for hydraulic flow rate adjustment 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. Adjusting hydraulic flow rates is essential for optimizing the performance of hydraulic implements.


If the hotkey for hydraulic flow rate adjustment remains actuated beyond the specified durations, the control unit may disable the functionality associated with flow rate adjustment to prevent unintentional or unsafe operations. This can lead to suboptimal hydraulic performance, affecting implement efficiency.


  • Inspect Hotkey Mechanism: Examine the physical condition of the hydraulic flow rate adjustment hotkey 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 the flow rate adjustment hotkey. Ensure it accurately registers presses and releases.
  • Check Electrical Connections: Inspect the electrical connections to the flow rate adjustment hotkey 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 the hydraulic flow rate adjustment hotkey is essential for optimizing hydraulic implement performance. Regular inspection and timely maintenance of the hotkey mechanisms can prevent faults and ensure reliable control inputs.

Control Units: John Deere

John Deere Parts
John Deere Logo