Massey Ferguson 0A.80.19 – Electronic Hitch/Hydraulic Control (EHR) or main vehicle control module: External Hydraulic Valve 8 Issue

The tractor's onboard diagnostic system has detected a malfunction on the 8th external hydraulic remote valve circuit. The underlying condition is typically electrical, such as an open circuit, a short to ground, a short to power, or an out-of-range signal from the spool position sensor or solenoid.

• 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 8 on the rear remote valve stack. Check the solenoid connector for dirt, corrosion, or loose pins.

2. 2

   Inspect the wiring harness leading to the valve for rub points, pinched wires, or signs of melting.

3. 3

   Use a multimeter to check the coil resistance of the solenoid on Valve 8. Verify ground integrity and check for an open circuit or a short to ground.

4. 4

   Ensure the tractor's hydraulic fluid is at the correct level and that the hydraulic filters are not clogged, as severe fluid restrictions can sometimes cause valve actuation errors.

1. 1

   Power Down

   Turn off the tractor and disconnect the battery to prevent electrical shorts during repair.

2. 2

   Relieve Pressure

   Relieve all hydraulic pressure from the system by moving the hydraulic levers/joysticks back and forth.

3. 3

   Access the Valve

   Locate the external hydraulic valve stack at the rear of the tractor and identify Valve 8.

4. 4

   Disconnect Wiring

   Unplug the electrical harness connector from the Valve 8 solenoid/spool position sensor.

5. 5

   Repair or Replace

   If the diagnostic checks revealed a broken wire or bad connector, repair the harness. If the solenoid coil failed the resistance test or the valve is mechanically stuck, unbolt the faulty solenoid/spool assembly from the valve block and install the replacement unit.

6. 6

   Reassemble

   Reconnect the electrical harness and restore battery power.

7. 7

   Clear Codes

   Use a compatible Massey Ferguson diagnostic tool or interface device to clear the 0A.80.19 DTC from the system.

8. 8

   Test

   Start the tractor and test the operation of the 8th hydraulic remote to ensure the code does not return.