Fendt A.1.B4 – Tractor Management System (TMS) / Enhanced Control ECU (A002): Crossgate lever plausibility error

The zero position signals of the X- and Y-axes are not identical to the expected 'Rest position' signal, indicating that the crossgate lever's recognition of its center position is faulty.

• 411 Vario COM III
• 412 Vario COM III
• 413 Vario COM III
• 414 Vario COM III
• 415 Vario COM III
• 712 Vario COM III
• 714 Vario COM III
• 716 Vario COM III
• 718 Vario COM III
• 818 Vario COM III
• 820 Vario COM III
• Fendt 300 Vario (COM III)
• Fendt 400 Vario (COM III) 409
• Fendt 400 Vario (COM III) 410
• Fendt 400 Vario (COM III) 411
• Fendt 400 Vario (COM III) 412
• Fendt 700 Vario (COM III) 711
• Fendt 700 Vario (COM III) 712
• Fendt 700 Vario (COM III) 714
• Fendt 700 Vario (COM III) 716
• Fendt 800 Vario (COM III) 815
• Fendt 800 Vario (COM III) 817
• Fendt 800 Vario (COM III) 818
• Fendt 900 Vario (COM III) 916
• Fendt 900 Vario (COM III) 920
• Fendt 900 Vario (COM III) 924
• Fendt 900 Vario (COM III) 926
• Fendt 900 Vario (COM III) 930

1. 1

   Verify if the crossgate lever physically returns to the center/rest position without obstruction.

2. 2

   Check the wiring harness and CAN bus connections between the A034 driving switch/crossgate lever and the A002 Enhanced Control ECU.

3. 3

   Check for related CAN bus faults (e.g., A.1.CC or 0.0.1F) which would indicate a complete loss of communication with the joystick.

1. 1

   Access diagnostic menu

   Access the tractor's terminal/dashboard diagnostic menu.

2. 2

   Enter calibration code

   Enter Calibration code '1001' (Crossgate lever calibration).

3. 3

   Calibrate crossgate lever

   Follow the on-screen prompts to teach the system the new X- and Y-axis zero/rest positions.

4. 4

   Evaluate calibration results

   If the calibration fails or the fault immediately returns, the internal potentiometers/sensors in the crossgate lever are likely worn out or defective.

5. 5

   Replace crossgate lever

   Replace the A034 crossgate lever assembly.

6. 6

   Run EOL programming

   Run the End-of-Line (EOL) programming / Calibration code 1001 again for the new lever.