Fendt 4.1.ED – Transmission Control Unit (EST / Transmission E-box): Clutch pedal rotary position sensor / angular resolver / potentiometer - No calibration or drifted values

No calibration or drifted values, or clutch pedal potentiometer values out of tolerance or clutch not calibrated. When this fault is active, the tractor loses enhanced control functions (like cruise control and final speed control) but continuation in emergency mode (auxiliary operation) is possible.

• 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
• 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
• Farmer 409 Vario
• Farmer 410 Vario
• Farmer 411 Vario
• Farmer 412 Vario
• Favorit 711 Vario
• Favorit 712 Vario
• Favorit 714 Vario
• Favorit 716 Vario
• Favorit 718 Vario
• 815 Vario
• 817 Vario
• 818 Vario
• 820 Vario
• 822 Vario
• 824 Vario
• 826 Vario
• 828 Vario
• 918 Vario
• 927 Vario
• 933 Vario
• 936 Vario
• 939 Vario

1. 1

   Check Sensor Supply Voltage: Test Pin 2 at the sensor connector for +8.5 VDC.

2. 2

   Check the Fuse: If the 8.5V supply is missing, check Micro fuse 8 (A013), which protects this circuit.

3. 3

   Check Ground and Signal: Verify that Pin 1 has a good Earth (ground) connection and test Pin 3 for the return signal to the Transmission ECU.

4. 4

   Inspect Wiring: Check the wiring harness between the clutch pedal sensor and the Transmission ECU for continuity, chafing, or line discontinuities.

1. 1

   Access the Sensor

   Remove the hatch cover at the top of the steering column, then remove the instrument panel to gain access to the B017 clutch pedal rotary position sensor.

2. 2

   Test/Replace

   Connect a diagnostic adapter cable directly to component B017 to monitor the signal values. If the sensor has failed or its internal resistance is out of tolerance, remove the mounting hardware and replace the sensor.

3. 3

   Calibration

   Enter the Fendt diagnostic/calibration menu and run Calibration Code '4001' (Calibration - clutch pedal sensor) to calibrate the new or drifted sensor to the transmission control unit.

4. 4

   Clear Codes

   Clear the 4.1.ED fault code and test drive the tractor to ensure cruise control and final speed control functions have returned.