AIC 523804.04 – Low Voltage Fault in Multi-Function Lever Left-Right Axis. John Deere System Alert.

AIC 523804.04 (AIC )

Code: 523804.04



This error code, AIC 523804.04, indicates a low voltage condition or a potential short circuit in the circuitry of the multi-function lever, specifically affecting its left-right movement axis. Such voltage issues can impair the lever’s ability to communicate positional changes effectively, potentially resulting from wiring issues, component malfunctions, or grounding problems.


In response to the detected low voltage or short, the control software has limited or completely disabled the functionality of the multi-function lever. This precaution helps to avoid unintended machine actions that could result from incorrect or erratic lever input.


  • Inspect the Wiring and Connections: Check the wiring associated with the multi-function lever’s left-right axis for signs of damage, wear, or loose connections that could be causing voltage drops or shorts.
  • Test Electrical Components: Utilize diagnostic tools to test the electrical components along the lever’s left-right axis, including sensors and wiring. Look for discrepancies in voltage levels and signs of electrical shorts.
  • Replace or Repair Faulty Components: If any components are found to be defective or the wiring is damaged, repair or replace them to restore proper voltage levels and functionality.
  • Calibrate the Multi-Function Lever: After making any necessary repairs, recalibrate the lever to ensure that it accurately reflects the operator’s inputs.
  • System Reset and Functional Testing: Reset the control system to clear any fault codes and perform a full functional test to verify that the multi-function lever is operating correctly and responding appropriately to controls.


Regular maintenance and careful monitoring of the electrical systems in agricultural equipment are crucial to ensure continuous and safe operation. Addressing issues like low voltage promptly helps prevent larger system failures and maintains the efficiency and effectiveness of the machinery’s operations.