Massey Ferguson A.6X.26: External Hydraulic Valve 6 Issue
Issue description
An alphanumeric code generated by the tractor's onboard diagnostic system to indicate a potential issue, fault, or connection problem specifically located at or within the 6th external hydraulic valve circuit.
Applies to these machines
40 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
Retrieve the exact code using a compatible diagnostic tool or interface device to pull the specific sub-code (e.g., 0A.60.26, 0A.61.26, or 0A.62.26) to pinpoint the exact nature of the fault.
Inspect the wiring harness and connector at External Hydraulic Valve 6 for damage, corrosion, or loose pins, as connection problems are a primary cause of these faults.
Consult the specific tractor's service manual or a qualified technician to interpret the exact decimal variation of the code before replacing parts.
Repair steps
Diagnose the electrical connection to the valve.
Check the electrical connection to the valve first to ensure the wiring is sound.
Replace the faulty external hydraulic valve assembly.
If the wiring is sound, replace the faulty external hydraulic valve assembly.
Parts you might need
(1)External Hydraulic Valve Assembly (Spool Valve) / External Hydraulic Valve 6
No specific OEM part number for the Tier 4 (2012-2023) External Hydraulic Valve 6 was found. Older, unrelated Massey Ferguson external hydraulic valves use part numbers like 1026699M92 or 357015, but these do not apply to the modern CAN-bus tractors logging the A.6X.26 code.
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