ACU 524101.03 – High Voltage in Front Hitch Control Lever Sensor

ACU 524101.03 (ACU )

Code: 524101.03



This error code, ACU 524101.03, is triggered when the voltage in the sensor circuit of the front hitch control lever is detected to be higher than normal. High voltage in this circuit could indicate an electrical malfunction, such as overcharging or a failure in the voltage regulation system.


As a precaution to prevent potential damage from incorrect hitch operation, the hitch system is automatically disabled when this high voltage condition is detected.


  • Inspect the sensor and its circuit for signs of electrical overload or damage that might be causing the high voltage readings. Look for damaged components, burnt wires, or signs of short-circuiting.
  • Use a multimeter to measure the actual voltage levels at different points within the circuit to identify where the voltage may be spiking.
  • Check the electrical connections and ensure that all connections are secure and free from corrosion, which could impact voltage stability.
  • Evaluate the voltage regulator or any associated electrical components that could influence the voltage levels in the sensor circuit. Replace any faulty components found during this inspection.
  • After addressing any electrical issues, reset the sensor system to ensure that the hitch operates within the correct voltage parameters. Recalibrate the system if necessary.


Maintaining proper voltage levels in the control systems of agricultural machinery is crucial for safe operation. Regular monitoring and maintenance of the electrical system can help prevent issues such as high voltage, ensuring the longevity and reliability of the equipment.