Massey Ferguson 0B.00.04 – Mid Mount Valve Module: Loader Mid Mount Electro Valve Solenoid Open Circuit

This code indicates an electrical "open circuit" condition in the solenoid that controls the mid-mount electro-hydraulic valve for the loader. The system's diagnostic monitoring has detected infinite resistance or a complete loss of electrical continuity in the circuit, meaning power cannot flow through the solenoid coil to actuate the valve.

• 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 to 7726S

1. 1

   Visually inspect the mid-mount valve block wiring harness for physical damage, chafing, or disconnected plugs.

2. 2

   Disconnect the plug at the affected solenoid and check for pushed-back pins, water ingress, or heavy corrosion.

3. 3

   Measure the resistance across the two pins of the solenoid coil using a multimeter set to Ohms to check for an open loop (OL).

4. 4

   Perform a harness continuity test between the Mid Mount Valve Module connector pins and the solenoid connector pins.

5. 5

   Verify that the ground circuit for the solenoid block is clean and tight.

1. 1

   Turn off the tractor, remove the key, and disconnect the negative battery terminal

   This prevents short circuits.

2. 2

   Relieve any residual hydraulic pressure in the loader circuit

   Move the joystick through all positions.

3. 3

   Locate the faulty solenoid

   Find it on the mid-mount valve block.

4. 4

   Unplug the electrical connector

   Disconnect it from the solenoid.

5. 5

   Remove the retaining nut

   Take off the nut at the end of the valve stem holding the solenoid coil in place.

6. 6

   Slide the old solenoid coil off the valve cartridge tube

   Note: You usually do not need to open the hydraulic system or remove the valve cartridge to replace just the coil.

7. 7

   Slide the new solenoid coil onto the stem and secure it with the retaining nut

   Do not overtighten, as this can distort the coil.

8. 8

   Reconnect the electrical plug

   Ensure the weather seal clicks into place.

9. 9

   Reconnect the battery, start the tractor, and test loader functions

   Ensure the 0B.00.04 code clears.