AIC 522189.04 – Low Voltage Fault in iTEC™ Program Selection Switch. John Deere System Alert.

AIC 522189.04 (AIC )

Code: 522189.04



This error code identifies a significant issue where the voltage at the iTEC™ program selection switch is abnormally low, indicating a short to ground. This could result from compromised wiring, a faulty switch, or issues within the electrical circuitry connected to the switch, affecting its operational integrity and safety.


Due to this low voltage condition, the control software has restricted or entirely disabled the functionality of the iTEC™ program selection switch to prevent potential errors in operation and safeguard the system from further electrical damage.


  • Inspect Wiring and Electrical Connections: Examine the wiring connected to the iTEC™ switch for signs of damage, such as wear, corrosion, or improper grounding that might cause a short circuit.
  • Diagnose Electrical Circuitry: Use electrical diagnostic tools to assess the circuitry for faults that could lead to reduced voltage. This includes checking for continuity issues and ensuring proper grounding practices are followed.
  • Repair or Replace Faulty Components: Address any identified faults by repairing or replacing damaged wiring or components. Ensure all repairs adhere to safety and operational standards.
  • Test Switch Functionality: Following the repairs, test the iTEC™ switch to ensure it now operates within normal voltage parameters and performs its functions correctly.
  • System Reset and Operational Verification: Reset the system to remove any restrictions imposed by the control software. Conduct a full operational test to confirm the functionality of the iTEC™ switch and the absence of any further voltage issues.


Maintaining the electrical integrity of agricultural machinery controls is crucial for ensuring reliable operation and preventing malfunctions. Regularly scheduled maintenance and immediate attention to electrical anomalies can prevent minor issues from developing into major system failures, enhancing the equipment’s longevity and operational efficiency.