SCO 516122.06 – Stepper Motor for E-SCV X, Current Too High

SCO 516122.06 (SCO )

Code: 516122.06



This error code, SCO 516122.06, indicates that the circuit current for the stepper motor of E-SCV X is too high, suggesting a short to ground. Excessive current can damage the stepper motor and prevent it from functioning correctly.


When this fault is detected, the control software may have limited functionality or may cease to function altogether, resulting in limited or no function of the selective control valve (E-SCV X).


  • Inspect Wiring for Shorts:
    • Check the wiring and connections to the stepper motor for signs of shorts to ground. Repair or replace any damaged wires.
  • Verify Power Supply:
    • Ensure that the power supply to the stepper motor is stable and within the required current range. Replace the power supply components if necessary.
  • Check Electrical Connections:
    • Inspect all electrical connections for corrosion, looseness, or damage. Clean and secure connections as needed.
  • Monitor Current:
    • Continuously monitor the current to the stepper motor to ensure it stays within the recommended range.


Preventive Maintenance:

  • Regular inspections of the electrical system can help identify and address potential short circuit issues before they cause operational problems.

Control Units: John Deere

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