SCC 523219.04 – SCC Unswitched Supply Voltage Low to SV III and SV IV

SCC 523219.04 (SCC )

Code: 523219.04



This error code indicates that the unswitched supply voltage for Selective Control Valve III (SV III) and Selective Control Valve IV (SV IV) is below 9.0 V. Low voltage can cause these valves to malfunction or operate inefficiently.


When this code is detected, the SCC will disable its functions for SV III and SV IV, turning them off to prevent further issues.


Check Power Supply:

  • Verify that the power supply to SV III and SV IV is stable and within the specified range. Replace the power supply if it is not providing sufficient voltage.

Inspect Voltage Regulator:

  • Ensure the voltage regulator is functioning correctly. Replace if it is not maintaining proper voltage levels.

Inspect Wiring and Connectors:

  • Check all wiring and connectors for SV III and SV IV for signs of damage, poor connections, or corrosion. Repair or replace as necessary.

Monitor Voltage:

  • Use a multimeter to monitor the voltage supplied to SV III and SV IV, ensuring it stays within the acceptable range.

Consult Technical Support:

  • If the issue persists, contact technical support for further diagnostics and assistance.


Ensuring stable voltage supply is essential for the proper operation of control valves.

Control Units: John Deere

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