AIC 523343.02 – Fault in Multi-Function Lever Switch. John Deere System Notification.

AIC 523343.02 (AIC )

Code: 523343.02



This error code AIC 523343.02 pertains to a fault detected in a switch on the multi-function lever. The issue arises from an incorrect signal being transmitted by the switch, suggesting a potential defect either in the switch mechanism itself or in the circuitry associated with it. This fault may affect the switch’s ability to correctly execute commands or change settings.


In response to this detected fault, the control software has either limited or completely disabled the function of the additional switch on the multi-function lever. This is a precautionary measure to prevent erroneous operations and ensure the safety and integrity of the machine’s control system.


  • Inspect the Multi-Function Lever and Its Switch: Examine the switch for any signs of physical damage, wear, or obstruction that might affect its operation. Ensure that the switch moves freely and does not stick in any position.
  • Test Electrical Circuitry: Utilize diagnostic tools to test the electrical circuitry of the switch. Look for shorts, opens, or inconsistent signal outputs that could indicate a circuit issue.
  • Repair or Replace Faulty Components: If the switch or associated circuitry is found to be defective, undertake the necessary repairs or replace the faulty components to restore proper function.
  • Functionality Testing: After repairs or replacement, thoroughly test the switch to ensure it operates correctly and integrates seamlessly with the multi-function lever’s other controls.
  • System Reset and Validation: Reset the system to clear any faults and conduct a comprehensive test to ensure all functionalities of the multi-function lever are fully operational and no further errors are detected.


Regular checks and maintenance of the multi-function lever and its associated switches are crucial to maintaining the operational efficiency and safety of agricultural machinery. Addressing issues promptly can prevent further complications and ensure reliable performance of the equipment.