John Deere 000628.02 – Various: Internal Software Configuration Error

The system has detected an internal fault related to the software configuration or End-of-Line (EOL) data of a control module, such as the PowrQuad™ Transmission Control Unit (PTQ). This data is programmed at the factory and contains essential parameters for operation. An issue with this data indicates a problem within the module's internal software setup, causing the module to enter a restricted function mode or cease operations. No specific hardware component is identified as the direct cause.

• 5E Series
• 5M Series
• 6R Series
• 6M Series
• 6J Series
• 7R Series
• 7000 Series
• 8R Series
• 8RT Series
• 9R Series
• 9RT Series
• 9030 Series
• STS Combines
• WTS Combines
• T-Series Combines

1. 1

   Record the full code, including the controller address (e.g., ACU, FCC), and note whether the code is active or stored

2. 2

   Cycle power by shutting down the machine, waiting a few moments, and restarting to see if the fault clears

3. 3

   Visually inspect battery connections, ground straps, and wiring harnesses connected to the affected control unit, as low or unstable voltage can trigger random controller faults

4. 4

   Check fuses related to the affected controller's power supply (e.g., fuses F22 and F24 for ACU faults)

1. 1

   Verify persisting fault

   If the code remains active after a power cycle, it indicates a hard fault within the controller.

2. 2

   Reprogram controller

   Reprogram or reflash the affected control unit using John Deere Service ADVISOR software to restore correct software and EOL configuration data. This can sometimes be done remotely via Service ADVISOR Remote (SAR) if equipped with JDLink.

3. 3

   Replace and program controller

   If reprogramming fails or the controller is internally damaged, replace the unit. The new controller must be programmed with Service ADVISOR to match the machine's VIN and specific configuration.