ASU 524008.13 – Active Seat Unit Calibration Fault. John Deere System Advisory.

ASU 524008.13 (ASU )

Code: 524008.13



Error code ASU 524008.13 is triggered when the Active Seat Unit (ASU) in John Deere equipment detects an issue with the calibration of the seat raise/lower solenoid or the seat position sensor. This could occur if these components have not been calibrated, or if they fail during the calibration process, potentially due to mechanical or electrical faults.


The seat’s operation or performance may be limited while this code is active. Limitations can include restricted adjustability or improper seat positioning, affecting operator comfort and ergonomic support.


  • Inspect Solenoid and Sensor: Begin by inspecting the seat raise/lower solenoid and position sensor for any signs of physical damage or malfunction. Replace faulty components as necessary.
  • Calibration: Perform a thorough calibration of the solenoid and sensor. Ensure that all related software settings are correctly configured according to manufacturer specifications.
  • Diagnostic Testing: Use diagnostic tools to test the solenoid and sensor functions, checking for errors or misreadings that could indicate a calibration issue.
  • Check Wiring Connections: Ensure all electrical connections related to the solenoid and sensor are secure and free of corrosion or damage. Repair or replace wiring if necessary.
  • System Reset and Re-calibration: After any necessary repairs or replacements, reset the entire ASU system and proceed with a complete recalibration to ensure optimal functionality.
  • Operational Testing: After recalibration, test the seat thoroughly to ensure it operates smoothly and adjusts correctly in all intended positions.


Maintaining proper calibration of the ASU components is crucial for the safety and comfort of the operator. Regular checks and maintenance of the solenoid and sensors, as part of standard equipment servicing, can help prevent issues related to improper calibration and ensure continuous and reliable functionality.