AIC 521413.02 – Fault in Armrest Multi-Function Lever. John Deere System Alert.

AIC 521413.02 (AIC )

Code: 521413.02



This error code is associated with a circuit fault in button 5 on the Armrest Multi-Function Lever, specifically affecting the side left switch. The malfunction is indicated by an error in the signal reading process, which suggests issues in electrical connectivity or signal integrity from this part of the lever.


The control unit has disabled the function associated with button 5 to prevent any unintended operations, thereby maintaining operational safety and integrity.


  • Thoroughly Inspect the Side Left Switch: Check for any physical impairments or electrical malfunctions that might be affecting the switch’s function.
  • Test Electrical Circuit Integrity: Conduct detailed electrical tests to ensure the signal pathways are continuous and free from disruptions.
  • Repair or Replace Faulty Wiring and Connections: Address any identified issues with wiring or connections that could be causing the fault, ensuring all electrical components are securely connected.
  • Replace Defective Switch if Necessary: If the side left switch is found to be faulty, replace it to restore proper functionality to the lever.
  • Reevaluate System Post-Repair: After completing repairs or replacements, reset the system and perform operational tests to verify that the multi-function lever is functioning correctly without further signal errors.


Routine inspections and maintenance of the electrical systems in agricultural machinery are essential to avoid disruptions and maintain optimal functionality. Early detection and correction of circuit faults play a critical role in preventing more significant issues and ensuring the equipment operates reliably and safely.