Fendt 1.1.E0 – A002 - ECU (enhanced control): A002 ECU (enhanced control); Sensor hand throttle EDC / EMR — EEPROM checksum is wrong

There is a data integrity issue (checksum error) within the EEPROM memory of the control unit regarding the hand throttle position sensor calibration or parameters.

• 409 Vario
• 410 Vario
• 411 Vario
• 412 Vario
• 711 Vario
• 712 Vario
• 714 Vario
• 715 Vario
• 716 Vario
• 717 Vario
• 718 Vario
• 916 Vario
• 920 Vario
• 924 Vario
• 926 Vario
• 930 Vario
• Fendt 300 Vario
• Fendt Farmer 400 / 400 Vario (409, 410, 411, 412)
• Fendt Favorit 700 / 700 Vario (711, 712, 714, 715, 716, 717)
• Fendt 800 Vario (815, 817, 818)
• Fendt Favorit 900 / 900 Vario (916, 920, 924, 926, 930)

1. 1

   Verify the tractor's operating state, as it will automatically enter a 'Restricted operating mode' (EDC-Failure or EMR-Failure).

2. 2

   Consult the EDC or EMR Engine control circuit diagrams to verify wiring integrity between the B035 hand throttle sensor and the A002 ECU.

3. 3

   Ensure you have access to the FENDIAS or SERDIA diagnostic software, which is required to clear faults after correction.

1. 1

   End-of-Line (EOL) Programming

   Perform a new end-of-line programming or load a new data record into the A002 ECU.

2. 2

   Calibration

   Run calibration code '4002' for the enhanced control ECU.

3. 3

   Clear Faults

   If subsequent EDC faults (e.g., 1.2.xx series) occur, they must be deleted in the engine control unit using the SERDIA diagnostic tool following the error correction.

4. 4

   Component Replacement

   If the ECU will not accept the new data record or the sensor signal remains out of range, replace the B035 Hand Throttle Sensor or the A002 ECU.