Massey Ferguson 0A.6X.19 – Onboard Diagnostic System / Main Tractor ECU: External Hydraulic Valve 6 Issue

Malfunction, connection problem, or electrical fault within the 6th external hydraulic remote valve (spool valve) circuit.

• 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

   Locate External Hydraulic Valve 6 at the rear remote block and inspect the wiring harness leading to the valve's solenoid for chafing, breaks, or pinched wires.

2. 2

   Disconnect the electrical plug at the valve and check for corrosion, bent pins, or moisture ingress.

3. 3

   Use a multimeter to check the resistance of the solenoid coil on Valve 6 to ensure it is not shorted or open.

4. 4

   Attempt to clear the DTC using a compatible Massey Ferguson diagnostic tool to see if the code is a hard fault or an intermittent glitch.

1. 1

   Power Down

   Turn off the tractor and relieve all hydraulic system pressure by cycling the remote levers/buttons.

2. 2

   Clean the Area

   Thoroughly clean the area around External Hydraulic Valve 6 to prevent dirt from entering the hydraulic system.

3. 3

   Repair Wiring/Connections

   If the diagnostic checks revealed a damaged connector or wire, splice in a new connector or repair the harness. Apply dielectric grease to the pins and reconnect.

4. 4

   Replace the Valve/Solenoid

   If the electrical circuit is sound but the valve solenoid has failed internally, unbolt the faulty spool valve/solenoid assembly from the hydraulic block.

5. 5

   Install New Part

   Mount the replacement external hydraulic valve, ensuring all O-rings and seals are properly seated. Torque the mounting bolts to OEM specifications.

6. 6

   Test and Clear

   Top off hydraulic fluid if any was lost. Start the tractor, actuate the #6 remote to bleed any air, and use a diagnostic interface device to clear the 0A.6X.19 code from the system.