BRC 523840.00 – High Front Brake Pressure (50K Only). John Deere System Advisory.

BRC 523840.00 (BRC )

Code: 523840.00



Error code BRC 523840.00 is specific to vehicles with a 50K capability, indicating that the front brake pressure is excessively high despite the front brake command being off. This condition could arise from a malfunction in the hydraulic system, such as a stuck valve or over-pressurization, which prevents the release of brake pressure.


The control unit has responded by triggering an indicator or alarm to alert the operator of the high-pressure condition. This alert serves as a warning that the braking system may not be functioning properly and requires attention to prevent potential safety hazards.


  • Inspect Brake System Components: Check the hydraulic components of the front brake system, particularly valves and hoses, for signs of malfunction or damage that could be causing the high pressure.
  • Test Hydraulic Pressure: Measure the hydraulic pressure in the front brakes to assess whether it consistently exceeds the normal range when the brakes are not engaged.
  • Release Excess Pressure: If excessive pressure is detected, implement procedures to safely release it and ensure the system can maintain normal pressure levels.
  • Replace Faulty Valves or Seals: If specific components like valves or seals are found to be faulty, replace them to restore proper function and prevent future occurrences of high pressure.
  • System Diagnostics and Recalibration: Conduct a comprehensive system diagnostic to identify any hidden issues. Recalibrate the brake system if necessary to ensure all components operate within their designated parameters.


Monitoring and maintaining correct brake pressure levels are crucial for the safe operation of high-capacity vehicles like those equipped with 50K systems. Regular checks and timely maintenance of the hydraulic system can help avoid issues that lead to unexpected high brake pressure and ensure the vehicle operates safely and effectively.