AIC 523343.04 – Low Voltage Fault in Multi-Function Lever Switch. John Deere System Alert.

AIC 523343.04 (AIC )

Code: 523343.04



This error code, AIC 523343.04, flags a low voltage issue with a switch on the multi-function lever, where the voltage supply has dropped below 4.8 volts. This condition typically indicates a short to ground or an internal fault within the control unit, both of which could compromise the switch’s functionality and the lever’s overall performance.


The control software has responded by limiting or completely disabling the functionality of the additional switch on the multi-function lever, as a preventive measure to avoid incorrect operations that could arise from insufficient voltage supply.


  • Inspect and Test Wiring and Connections: Examine the wiring and electrical connections related to the switch for signs of wear, damage, or grounding issues that might cause a voltage drop.
  • Diagnose the Control Unit: Assess the control unit for any internal faults. Use diagnostic tools to ensure that it is functioning properly and providing adequate power to all connected components.
  • Repair or Replace Faulty Components: If any wiring issues or defects in the control unit are identified, proceed with necessary repairs or replacements to resolve the low voltage condition.
  • Verify Switch and Lever Operation: After repairs, thoroughly test the switch to confirm that it receives the correct voltage and functions as expected within the operation of the multi-function lever.
  • System Reset and Comprehensive Testing: Reset the system to clear any restrictive measures implemented by the control software. Perform comprehensive testing to ensure that the multi-function lever and its switches are fully operational and free from further voltage issues.


Regular electrical maintenance is essential for the reliable operation of machinery controls. Addressing voltage issues promptly helps prevent further electrical system complications and ensures the equipment’s functionality and safety.