Massey Ferguson 0A.21.26 – Mid Mount Valve Module / Dash: External Hydraulic Valve 2 Issue

Indicates a fault in the second external hydraulic spool valve circuit, typically caused by a connection problem on the hydraulic valve, an issue with the spool position sensor value, or a communication failure.

• 7724S
• 5712SL
• 7722
• 7722S
• 5713SL
• 7720S
• 7716
• 7718
• T4
• 7715
• 5710SL
• 7726
• 7726S
• 5711SL
• 7718S
• 7719
• 7714
• 7716S
• 7720
• Tier 4 (2015-2021)
• 7715S
• 7724
• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626

1. 1

   Inspect the wiring harness between the Dash, the Mid Mount Valve Module, and External Hydraulic Valve 2 for breaks, corrosion, or loose connectors

2. 2

   Ensure there is proper communication between the Dash and the Mid Mount Valve Module

3. 3

   Verify the spool position sensor value to ensure the sensor is reading the valve's physical position correctly

4. 4

   Consult the OEM service manual to interpret the exact pinout values for the spool position sensor

1. 1

   Connect a compatible Massey Ferguson diagnostic tool or interface device to retrieve and confirm all active DTCs.

   Retrieve and confirm all active DTCs.

2. 2

   Locate External Hydraulic Valve 2 on the Mid Mount Valve Module.

   Locate External Hydraulic Valve 2.

3. 3

   Disconnect the electrical connector to the valve and the spool position sensor. Clean the contacts and check for continuity.

   Clean the contacts and check for continuity.

4. 4

   If the wiring is intact but the spool position sensor value is out of range, replace the spool position sensor or the entire external hydraulic valve control assembly.

   Replace the spool position sensor or the entire external hydraulic valve control assembly if the sensor value is out of range.

5. 5

   Reconnect all harnesses and use the diagnostic tool to clear the DTCs from the system.

   Clear the DTCs from the system.

6. 6

   Test the hydraulic valve operation to ensure the code does not return.

   Ensure the code does not return.