RLC 002390.03 – License Plate Light, Voltage Too High

RLC 002390.03 (RLC 2390.03)

Code: 002390.03

Shortcode: 2390.03

Description:

This diagnostic trouble code is generated if a voltage higher than 16 volts is registered at the output to the license plate light. This indicates a short circuit to a positive lead.

Reaction:

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

Recommendations:

  • Inspect License Plate Light Circuit:
    • Check the wiring and connectors associated with the license plate light for signs of short circuits to a positive lead. 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 License Plate Light:
    • Test the license plate light to ensure it is not damaged or causing the voltage increase. Replace any faulty light components.
  • Check Power Supply:
    • Ensure the power supply to the license plate light is stable and within the specified range. Inspect for any issues that could cause an overvoltage condition.

Note:

Excessive voltage can damage the license plate light 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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