SCO 002646.03 – Stepper Motors for E-SCV XI and E-SCV XIV, Voltage Too High

SCO 002646.03 (SCO 2646.03)

Code: 002646.03

Shortcode: 2646.03

Description:

This error code, SCO 002646.03, indicates that the voltage for the stepper motors of E-SCV XI and E-SCV XIV is too high, potentially due to an open circuit or a short to 12 volts. This can prevent the stepper motors from operating correctly.

Reaction:

When this fault is detected, the control software may have limited functionality or may cease to function altogether, affecting the selective control valves.

Recommendations:

  • Inspect Wiring for Shorts:
    • Check the wiring and connections to the stepper motors for signs of shorts to 12 volts or open circuits. Repair or replace any damaged wires.
  • Verify Power Supply:
    • Ensure that the power supply to the stepper motors is stable and within the required voltage 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 Voltage:
    • Continuously monitor the voltage at the stepper motor inputs to ensure it stays within the recommended range.

Note:

  • Preventive Maintenance:
    • Regular inspections of the electrical system can help identify and address potential voltage issues before they cause operational problems.

Control Units: John Deere

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