SIC 523845.03 – S64 MultiFunction Lever (Potentiometer) EICV 2, Voltage Too High

SIC 523845.03 (SIC )

Code: 523845.03



This error code, SIC 523845.03, is generated when the EICV 2 potentiometer signal voltage is above the specified range. This indicates a potential issue with the potentiometer or related circuitry.


When this error code is detected, the control unit may register an incorrect position or value from the EICV 2 potentiometer, leading to potential control issues with the associated hydraulic functions.


  • Inspect Potentiometer and Wiring:
    • Check the S64 MultiFunction Lever potentiometer and associated wiring for any signs of damage, wear, or loose connections. Repair or replace as necessary.
  • Measure Voltage:
    • Use a multimeter to measure the signal voltage from the EICV 2 potentiometer to ensure it is within the specified range.
  • Test Potentiometer:
    • Use diagnostic tools to test the potentiometer for proper operation and accurate signal output.
  • Update Software:
    • Ensure that the control unit firmware and software are up to date to rule out any software-related issues.


High voltage signals from the potentiometer can lead to incorrect control inputs. Regular inspection and maintenance of the potentiometer and associated wiring can help prevent such issues. If the problem persists, consult technical support for further diagnosis and repair.

Control Units: John Deere

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