BRC 524016.04 – Low Brake Solenoid Supply Voltage. John Deere System Advisory.

BRC 524016.04 (BRC )

Code: 524016.04



Error code BRC 524016.04 is triggered when the unswitched supply voltage to the brake solenoid in the Brake Control Unit (BRC) falls below 9.0 volts. This low voltage condition can impair the operation of the brake solenoid, potentially affecting the braking system’s ability to engage or disengage properly.


Due to this low voltage, the functionality of the braking system is degraded. This may result in reduced braking performance or inconsistent brake application, which could compromise vehicle safety.


  • Check and Test Battery: Ensure that the vehicle’s battery is in good condition and charged adequately. Replace the battery if it fails to maintain a sufficient charge.
  • Inspect Wiring and Connections: Examine the wiring and connections to the brake solenoid for signs of damage, corrosion, or looseness. Repair or replace faulty wiring to ensure proper voltage supply.
  • Test Voltage Supply: Use a multimeter to measure the voltage at the brake solenoid. This will help identify whether the issue is isolated to the solenoid or indicative of a broader electrical system problem.
  • Examine Voltage Regulator and Alternator: Check the voltage regulator and alternator as potential sources of the low voltage issue. Repair or replace as necessary to ensure they are functioning properly.
  • System Reset and Recalibration: After addressing electrical issues, reset the Brake Control Unit and recalibrate if necessary to ensure all components operate as intended.


Regular maintenance of the vehicle’s electrical system, including the battery, alternator, and all associated wiring, is essential to prevent voltage-related issues. Ensuring these components are functioning correctly can help maintain the reliability and safety of the braking system.