A.22.21

Massey Ferguson A.22.21 – Dash / Mid Mount Valve Module: External Hydraulic Valve 2 Issue

Issue description

Indicates a connection problem on the hydraulic valve or an issue with the spool position sensor value.

Applies to these machines

  • 5710SL
  • 5711SL
  • 5712SL
  • 5713SL
  • T4
  • 4707
  • 4708
  • 4709
  • 4710
  • 5608
  • 5609
  • 5610
  • 5611
  • 5612
  • 5613
  • 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. Retrieve all active and stored codes using a diagnostic tool to confirm the fault

  2. Check the wiring harness and connectors leading to External Hydraulic Valve 2 for any physical damage, corrosion, or loose connections

  3. Check the spool position sensor value using the diagnostic tool to see if it is reading out of range or failing to register movement

Repair steps

  1. Locate valve

    Locate External Hydraulic Valve 2 on the tractor's hydraulic valve block.

  2. Inspect and clean connectors

    Disconnect the electrical connector to the valve and the spool position sensor. Clean the contacts and inspect for pushed-out pins or moisture.

  3. Reconnect and test

    Reconnect the harness and test the tractor's hydraulic functions.

  4. Test and replace spool position sensor

    If the code persists and the wiring is intact, test the spool position sensor. If the sensor is faulty, replace it.

  5. Replace External Hydraulic Valve 2

    If the sensor is functioning properly but the valve fails to actuate, replace the External Hydraulic Valve 2 assembly.

  6. Clear DTCs

    Clear the DTCs using your diagnostic tool and cycle the tractor's power to ensure the code does not return.

Parts you might need

(2)
  • External Hydraulic Valve 2

    Specific OEM part numbers vary heavily by tractor model and valve block configuration

  • Spool Position Sensor

    Specific OEM part numbers vary by model

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