ASU 524011.04 – Active Seat Accelerometer Circuit Voltage Low. John Deere System Advisory.

ASU 524011.04 (ASU )

Code: 524011.04



Error code ASU 524011.04 is issued when the Active Seat Unit (ASU) in John Deere equipment detects a lower-than-normal voltage in the accelerometer circuit, specifically below 1.5 volts. This low voltage condition can indicate potential issues such as insufficient power supply, poor electrical connections, or a failing accelerometer, which could impair the seat’s motion and stability control functionalities.


The seat functionality is disabled while this code is active, as a precaution to avoid incorrect operation that could result from inaccurate accelerometer readings.


  • Inspect Accelerometer and Electrical Connections: Check the accelerometer and its electrical connections for signs of wear, damage, or loose connections that could be causing the low voltage.
  • Test Voltage Levels: Use a multimeter to measure the voltage levels in the accelerometer circuit to identify the source of the voltage drop.
  • Replace Faulty Components: If any components are found to be defective or insufficiently providing power, replace them to ensure proper voltage levels are maintained.
  • Secure All Wiring: Ensure that all wiring is securely connected and free of corrosion or damage that could interfere with voltage transmission.
  • Recalibrate the Circuit: After repairs or component replacements, recalibrate the accelerometer circuit to ensure it functions within the correct voltage parameters.
  • System Reset and Operational Testing: Reset the ASU to clear the fault code and conduct operational testing to verify that the accelerometer and seat adjustments are functioning correctly.


Regular checks and maintenance of the electrical systems, including the accelerometer circuit, are essential for ensuring the reliable and safe operation of active seating systems. Addressing voltage issues promptly can help maintain the seat’s performance and operator comfort, thereby extending the life and efficiency of the equipment.