Fendt 04.1.EB – A050 basic control unit ECU: B016 - Sensor, travel range detection

This code indicates a checksum error or that the range control calibration is missing. The transmission travel speed range is not being recognized correctly by the system. As a result, the Tractor Management System (TMS) is switched off, and range control shifting becomes impossible (the transmission will remain in the currently engaged range).

• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• 200 Vario (V, F, P series)
• 300 Vario (COM III)
• 400 Vario (COM III)
• 700 Vario (COM III, SCR, Gen series)
• 800 Vario (COM III, S4)
• 900 Vario (COM III, S4)

1. 1

   Check the Power Supply: The B016 sensor relies on an 8.5 V supply. Check the A013 fuse board (specifically fuse 06, 08, or 13, depending on your exact Vario model/generation) to ensure the fuse is not blown and the 8.5 V supply is intact.

2. 2

   Inspect Wiring and Connectors: Check the wiring harness and connectors leading to the B016 sensor for corrosion, chafing, or signal faults.

3. 3

   Check for Related Codes: Ensure there are no active faults for the B014 (collecting shaft sensor) or B015 (bevel pinion sensor), as these will prevent successful calibration of the B016 sensor.

1. 1

   Attempt Calibration First

   Enter the Fendt terminal diagnostic menu and initiate Calibration Code 4003 (Travel range selector / Sensor, travel range detection).

2. 2

   Meet Calibration Prerequisites

   For Calibration 4003 to run successfully, the following conditions must be met: Tractor speed must be exactly 0 km/h (it will fail if speed is > 0.1 km/h). Engine speed must be between 600 rpm and 900 rpm. Transmission must be in Neutral. The clutch pedal must be fully depressed.

3. 3

   Replace the Sensor

   If the calibration fails, aborts, or the fault immediately returns, the B016 sensor is internally faulty and must be replaced.

4. 4

   Recalibrate

   After physically installing the new B016 sensor, you must perform Calibration Code 4003 again to teach the A050 ECU the new sensor's parameters.