RLC 000444.04 – Control Software, Supply Voltage (BAT at Terminal J4) Too Low

RLC 000444.04 (RLC 444.04)

Code: 000444.04

Shortcode: 444.04

Description:

This error code is triggered when the supply voltage (BAT) at terminal J4 drops below 9 volts. Low voltage levels can indicate a failing battery, poor electrical connections, or issues with the charging system.

Reaction:

When this error is detected, the control software may experience limited or no functionality, affecting the performance or operation of specific electronic control systems within the equipment.

Recommendations:

  • Check Battery Health:
    • Test the battery to ensure it holds a charge and is in good condition. Replace the battery if it is old or unable to maintain adequate voltage.
  • Inspect Electrical Connections:
    • Inspect all electrical connections at terminal J4, including those at the battery and control software. Ensure they are clean, secure, and free from corrosion.
  • Verify Charging System:
    • Check the alternator and voltage regulator for proper operation. Ensure they are charging the battery correctly. Replace faulty components as necessary.
  • Examine Wiring:
    • Inspect the wiring harness for any signs of wear, damage, or corrosion. Repair or replace any compromised wiring.

Note:

Consistently low supply voltage can cause long-term damage to the control software and other electronic components. Regular maintenance of the electrical system is crucial to prevent such issues.


Control Units: John Deere

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