AIC 521412.02 – Circuit Issue in Armrest Multi-Function Lever. John Deere System Notification.

AIC 521412.02 (AIC )

Code: 521412.02



This code relates to a malfunction in the circuit of button 4 on the Armrest Multi-Function Lever, specifically with the rear right switch. The error concerns an inability to correctly read the signal from this switch, suggesting a fault that may affect the electrical integrity or the switch’s operational capacity.


In response to the identified fault, the control unit has disabled the function associated with button 4 on the lever, halting its operation to prevent incorrect actions and maintain safety.


  • Inspect the Rear Right Switch: Examine this switch for any signs of physical or electrical damage that could influence its performance.
  • Evaluate the Circuit’s Electrical Pathways: Perform tests to assess the continuity and quality of the signal from the rear right switch, identifying any disruptions or anomalies.
  • Rectify Connection and Wiring Issues: Secure and repair any faulty wiring or loose connections that might be contributing to the circuit fault.
  • Component Replacement: Replace the rear right switch or any associated electrical components if they are found to be defective.
  • System Testing and Calibration: After making necessary replacements or repairs, reset the system and run comprehensive tests to ensure that the multi-function lever is fully functional and the error does not recur.


Ongoing maintenance and prompt resolution of electronic faults are crucial for maintaining the operational efficacy and safety of agricultural machinery. Proactive maintenance routines can help prevent the escalation of such issues, safeguarding against potential operational failures and extending the service life of the equipment.