Fendt 06.1.E1 – A002 - ECU, enhanced control (or A050 - ECU, basic control unit): Checksum error, PTO parameterisation

The control unit has detected corrupted, missing, or invalid configuration data (EEPROM checksum mismatch) regarding the Power Take-Off (PTO) system. The tractor's system will ignore the corrupted data and automatically use default safety values for the PTO.

• 309 Vario COM III
• 310 Vario COM III
• 311 Vario COM III
• 312 Vario COM III
• Fendt 200 V/F/P Vario series
• Fendt 300 Vario series
• Fendt 400 Vario series (COM III)
• Fendt 700 Vario series (COM III)
• Fendt 800 Vario series (COM III)
• Fendt 900 Vario series (COM III)

1. 1

   Verify the active fault code 06.1.E1 on the tractor's terminal/instrument cluster.

2. 2

   Check the front and rear PTO operation to see if they are operating on restricted default values.

3. 3

   Verify the power supply and ground connections to the A002/A050 ECU, including checking the microfuses on the A013 printed circuit board (PCB).

4. 4

   Attempt to clear the fault code using the terminal buttons (pressing both arrow keys simultaneously in the fault menu) to see if it is a hard fault or a temporary glitch.

1. 1

   Connect diagnostic tool

   Connect the FENDIAS diagnostic software interface to the tractor's diagnostic port.

2. 2

   Establish communication

   Establish communication with the A002 (or A050) ECU.

3. 3

   Perform EOL programming

   Perform EOL (End-Of-Line) programming. This procedure will re-flash the ECU and reload the correct PTO parameterization data record.

4. 4

   Cycle power

   Once the EOL programming is complete, cycle the tractor's key power.

5. 5

   Re-check fault memory

   Re-check the fault memory to ensure 06.1.E1 has been successfully cleared and does not return.

6. 6

   Test PTO operation

   Test the PTO engagement and operation to confirm it is no longer relying on default values.

7. 7

   Replace ECU if necessary

   If the EOL programming fails, or if the ECU immediately drops the parameterization data again (indicating a failed internal EEPROM), the A002/A050 ECU must be physically replaced and then programmed.