RLC 521557.05 – Right Inner Worklight on Front of Roof, Current Too Low

RLC 521557.05 (RLC )

Code: 521557.05



This diagnostic trouble code is generated if the control software registers that the current at the output to the right inner worklight on the front of the roof is too low. This indicates that the circuit is open.


When this error is detected, the control software may experience limited or no functionality of the worklight.


  • Inspect Worklight Circuit:
    • Check the wiring and connectors associated with the right inner worklight for signs of open circuits. Look for disconnected or loose connections. Repair or replace any compromised wiring or connectors.
  • Test Worklight:
    • Test the right inner worklight to ensure it is functioning correctly and drawing the proper current. Replace any faulty light components.
  • Verify Power Supply:
    • Ensure the power supply to the worklight is stable and within the specified range. Inspect for any issues that could cause a drop in current.


An open circuit can prevent the worklight from functioning properly. Regular inspection and maintenance of the electrical system are essential to ensure reliable operation.

Control Units: John Deere

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