RLC 521555.03 – Right Outer Worklight on Front of Roof, Right Turn-Signal Light on Front of Roof (SAE) or Right Extra-Wide Vehicle Turn-Signal Light (SAE), Voltage Too High

RLC 521555.03 (RLC )

Code: 521555.03

Shortcode:

Description:

This diagnostic trouble code is generated if a voltage higher than the expected value is registered at the output to the right outer worklight on the front of the roof, right turn-signal light on the front of the roof (SAE), or right extra-wide vehicle turn-signal light (SAE). This indicates that the circuit is open or shorted to 12 volts.

Reaction:

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

Recommendations:

  • Inspect Light Circuit:
    • Check the wiring and connectors associated with the right outer worklight, right turn-signal light, or right extra-wide vehicle turn-signal light for signs of open circuits or shorts to 12 volts. Look for damaged insulation or exposed wires. Repair or replace any compromised wiring.
  • Verify Voltage Regulation:
    • Ensure the voltage regulator is functioning correctly and maintaining proper voltage levels. Replace the regulator if it is faulty.
  • Test Lights:
    • Test the right outer worklight, right turn-signal light, or right extra-wide vehicle turn-signal light to ensure they are not damaged or causing the voltage increase. Replace any faulty light components.
  • Check Power Supply:
    • Ensure the power supply to the lights is stable and within the specified range. Inspect for any issues that could cause an overvoltage condition.

Note:

Excessive voltage 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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