0B.X.20

Massey Ferguson 0B.X.20 – Mid Mount Valve Module: Issue With Spool Position Sensor Value

Issue description

The onboard diagnostic system is receiving an irregular, out-of-range, or missing signal from the spool position sensor, which monitors the position of the electro-hydraulic valves.

Applies to these machines

  • 5710SL
  • 5711SL
  • 5712SL
  • 5713SL
  • T4
  • 5608
  • 5609
  • 5610
  • 5611
  • 5612
  • 5613
  • 4707
  • 4708
  • 4709
  • 4710
  • 7614
  • 7615
  • 7616
  • 7618
  • 7619
  • 7620
  • 7622
  • 7624
  • 7626
  • 7714
  • 7715
  • 7715S
  • 7716
  • 7716S
  • 7718
  • 7718S
  • 7719
  • 7720
  • 7720S
  • 7722
  • 7722S
  • 7724
  • 7724S
  • 7726
  • 7726S

Check the cause

  1. Verify the wiring harness and connectors between the Dash and the Mid Mount Valve Module for connection problems

  2. Look for accompanying codes indicating an open circuit, low amp draw, or high amp draw on the Loader Mid Mount Electro Valve Solenoids

  3. Check if the valves require calibration (look for codes 0B.X.22 and 0B.X.23)

  4. Retrieve and clear codes using a compatible diagnostic tool to see if the issue is a hard fault or an intermittent glitch

Repair steps

  1. Consult service manual

    Consult the tractor's specific service manual for instructions on accessing the Mid Mount Valve Module.

  2. Inspect sensor

    Inspect the spool position sensor on the affected mid-mount valve for physical damage or debris.

  3. Replace sensor

    Replace the faulty spool position sensor if the value remains out of range.

  4. Calibrate valves

    Perform a valve calibration procedure (as indicated by related calibration fault codes) once the new sensor is installed.

  5. Clear DTCs

    Clear the DTCs using the tractor's manual instructions or a specialized diagnostic tool.

Parts you might need

(2)
  • Spool Position Sensor

    for Mid Mount Control Valve

  • Loader Mid Mount Electro Valve Solenoid

    Associated Component

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