Fendt 1.2.08 – A051 - ECU, Engine Control Unit (EDC 7): B087 - Fuel low pressure sensor

Primary fuel low pressure is outside of the setpoint range (typically dropping below the target range of approximately 6 bar). The system will also trigger this code if it detects a break in the wiring or a short circuit at the sensor.

• 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 200 Vario
• Fendt 300 Vario (COM III)
• Fendt 400 Vario (COM III)
• Fendt 500 Vario
• Fendt 700 Vario (COM III)
• Fendt 800 Vario (COM III / S4)
• Fendt 900 Vario (COM III)

1. 1

   Check the fuel system to ensure there is an adequate supply of fuel and that the primary delivery pump is functioning

2. 2

   Inspect the fuel lines to see if air has entered the system

3. 3

   Inspect primary and inline fuel filters to check if they are clogged or blocked (a primary cause of low pressure)

4. 4

   Check the wiring harness and connector to the B087 sensor for a broken wire or short circuit (refer to Wiring Diagram Sheet 36)

5. 5

   Read out the specific KWP fault codes using the SERDIA / Fendias diagnostic tool to verify associated sub-codes (FC:005A, 005B, or 005E)

1. 1

   Resolve Flow Restrictions

   Replace the fuel filters if they are clogged or have not been serviced recently.

2. 2

   Bleed the System

   Bleed all air from the fuel system to restore proper primary pressure.

3. 3

   Wiring Repair

   If electrical testing revealed a fault, repair any broken wires or short circuits in the B087 sensor's wiring harness.

4. 4

   Sensor Replacement

   If the wiring is intact, the filters are clean, and the fuel supply is verified but the code persists, replace the B087 fuel low pressure sensor.

5. 5

   Clear Codes

   Connect the SERDIA diagnostic tool and delete the error code from the EDC memory.