AIC 523923.03 – High Voltage Fault at E-SCV I Control Lever. John Deere System Alert.

AIC 523923.03 (AIC )

Code: 523923.03



This error code, AIC 523923.03, indicates a high voltage issue or a short circuit within the circuitry of the control lever for E-SCV I (Electronic Selective Control Valve I). High voltage levels may result from a short to power within the circuit, potentially damaging the electrical components or impairing the functionality of the control lever.


In response to the detected high voltage, the control software has either limited or completely disabled the functionality of the E-SCV I control lever. This precautionary measure is taken to prevent potential damage to the system and ensure safety by avoiding incorrect or unintended lever operations.


  • Inspect the Wiring and Electrical Components: Check the wiring associated with the E-SCV I control lever for any signs of damage, wear, or insulation breakdown that could lead to a short circuit.
  • Measure and Diagnose Voltage Levels: Use diagnostic tools to measure the voltage levels at the control lever. Look for spikes or sustained high levels that could indicate the presence of a short to power.
  • Repair or Replace Faulty Wiring or Components: If any damaged wires or components are identified, repair or replace them as needed to resolve the issue and restore normal voltage levels.
  • Test Lever Operation: After addressing the electrical issues, thoroughly test the E-SCV I control lever to ensure that it operates correctly and within the correct voltage parameters.
  • System Reset and Operational Verification: Reset the control system to clear any error states and perform a full operational test to confirm that the E-SCV I control lever is functioning properly and no longer exhibits high voltage readings.


Maintaining the electrical integrity of the control systems is crucial for the reliable operation of agricultural machinery. Regular checks and timely maintenance of electrical circuits help prevent malfunctions and ensure that the machinery operates safely and efficiently. Addressing electrical issues like high voltage promptly can avert more significant problems and maintain system reliability.