RLC 521560.06 – Right Outer Worklight on Rear of Roof or Right Turn-Signal Light on Rear of Roof (SAE), Current Too High

RLC 521560.06 (RLC )

Code: 521560.06



This diagnostic trouble code is generated if the control software registers that the current at the output to the right outer worklight on the rear of the roof or right turn-signal light on the rear of the roof (SAE) is too high. This indicates a short circuit to ground.


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


  • Inspect Light Circuit:
    • Check the wiring and connectors associated with the right outer worklight or right turn-signal light for signs of short circuits to ground. Look for damaged insulation or exposed wires. Repair or replace any compromised wiring.
  • Test Lights:
    • Test the right outer worklight or right turn-signal light to ensure they are not damaged or causing excessive current draw. Replace any faulty light components.
  • Verify Power Supply:
    • Ensure the power supply to the lights is stable and within the specified range. Inspect for any issues that could cause an overcurrent condition.


Excessive current can damage the lights and associated circuitry. Regular inspection and maintenance of the electrical system are essential to prevent such issues.

Control Units: John Deere

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