Fendt 00.1.A9 – A007 - Instrument Panel: B019 - Sensor, compressed air supply

Compressed air supply circuit 2, overpressure (or vacuum). It indicates that the sensor is detecting a pressure value outside of the normal operating range, or there is a signal/wiring fault.

• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• FENDT 300 Vario (COM III)
• FENDT 400 Vario (COM III)
• FENDT 700 Vario (COM III)
• FENDT 800 Vario (COM III)
• FENDT 900 Vario (COM III)
• Fendt Katana 85 Forage Harvester

1. 1

   Connect a mechanical test gauge to the single-line coupling 'red' (supply) at the rear of the tractor to verify the pressure manually.

2. 2

   Compare the mechanical gauge reading with the bar indicator display on the A007 instrument panel.

3. 3

   If the display matches the mechanical gauge but shows abnormal pressure, check the entire compressed air system for leaks and ensure it is airtight. Repair any pneumatic leaks found.

4. 4

   If the display is incorrect (or shows no display/warning message), check the 12V supply to the sensor and verify the integrity of A013 fuse 25.

5. 5

   Inspect the signal line and wiring harness for shorts or breaks between the B019 sensor and the A007 instrument panel.

1. 1

   Locate the Sensor

   The B019 compressed air supply sensor is located on the right rear axle, mounted on the front compressed air reservoir.

2. 2

   Access the Sensor

   To gain proper access to the sensor, safely lift and support the tractor, then detach the right rear wheel.

3. 3

   Disconnect Wiring

   Locate separation point X168 on the B019 sensor and disconnect the electrical harness.

4. 4

   Remove and Replace

   Unscrew the faulty B019 sensor from the air reservoir. Install the new sensor and tighten to the specified torque.

5. 5

   Reassembly

   Reconnect the X168 electrical connector. Reinstall the right rear wheel and lower the tractor.

6. 6

   Clear Fault Codes

   Turn on the ignition. Call up the fault code memory on the instrument panel and delete the stored 00.1.A9 code to reset the system.