AIC 523349.04 – Low Voltage Fault in AutoTrac™ Switch. John Deere System Notification.

AIC 523349.04 (AIC )

Code: 523349.04



The error code AIC 523349.04 signals a low voltage issue at the AutoTrac™ switch, with the voltage at the switch input dropping below 0.50 volts. This typically indicates a short to ground, which could be caused by faulty wiring, a degraded insulation, or an internal fault within the switch circuitry itself.


Due to this electrical fault, the control software has either limited or completely disabled the functionality of the AutoTrac™ switch to prevent any erratic behavior or potential damage from the incorrect voltage supply.


  • Inspect Wiring and Electrical Connections: Examine the wiring and connections related to the AutoTrac™ switch for signs of wear, corrosion, or damage that might cause a short to ground. Look for exposed conductors or compromised insulation.
  • Diagnose Circuit Integrity: Utilize electrical testing equipment to check the integrity of the switch’s circuit. Focus on identifying any continuity issues or ground faults that could lead to low voltage readings.
  • Repair or Replace Faulty Electrical Components: Any defective wiring or components found during the inspection should be repaired or replaced promptly to restore proper voltage levels.
  • Test Switch Functionality: After making the necessary repairs, test the AutoTrac™ switch to ensure it now receives the correct voltage and functions as intended.
  • System Reset and Comprehensive Testing: Reset the system to clear any restrictions imposed by the control software due to the voltage issue. Perform a full operational test to confirm that the AutoTrac™ switch is fully operational and no further voltage irregularities exist.


Regular maintenance and timely intervention when detecting voltage irregularities are crucial for ensuring the reliable operation of agricultural machinery. Such proactive measures help maintain the functionality and safety of the equipment, preventing costly downtime and extensive repairs.