John Deere 000444.06 – CLC: Cab Load Center Current Too High

The system has detected that the current supplied to the Cab Load Center (CLC) or roof lighting module is excessively high, surpassing its designed limit. This indicates an overload in the lighting system, an issue with the power supply, or a faulty component. As a protective measure, the control unit may disable some lighting functions to prevent damage.

• 6R Series
• 7R Series
• 8R Series
• 9R Series

1. 1

   Cycle the tractor's main power switch to reset the control module and clear temporary faults

2. 2

   Reduce electrical load by turning off non-essential lights and disconnecting any operator-installed or aftermarket accessories tied into the roof wiring

3. 3

   If a trailer is connected, unplug the 7-pin connector to see if the code persists, as trailer wiring can cause overloads

4. 4

   Check the condition of all roof-mounted light bulbs for failing or incorrect bulbs that could cause a short circuit

5. 5

   Inspect the wiring harnesses connected to the roof lights for signs of damage, corrosion, or improper connections

1. 1

   Isolate the faulty circuit

   Turn on the roof lights one by one to see if a specific light or group of lights triggers the fault code. This helps narrow down the source of the high current draw.

2. 2

   Inspect and test components

   Once a suspect circuit is identified, disconnect its components (e.g., a specific work light) and inspect the wiring for shorts to ground or other wires. Use a multimeter to check for continuity and resistance in the wiring.

3. 3

   Verify component amperage

   Check the amperage draw of individual components to ensure they are within specification. A component drawing significantly more current than its rating is likely faulty and should be replaced.

4. 4

   Diagnose control module

   If all external circuits and components are verified to be in good working order, the CLC or RLC module itself may be at fault. This is typically diagnosed by a process of elimination. Contact an authorized dealer for advanced diagnostics and repair if basic steps do not resolve the issue.