Massey Ferguson 0B.02.02 – Implement Control Unit or main Vehicle ECU: Loader Mid Mount Electro Valve Solenoid Low Amp Draw

The tractor's diagnostic system has detected that the electrical current (amperage) flowing to the solenoid coil on the mid-mount loader valve is below the minimum expected threshold, indicating an open circuit.

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 4707
• 4708
• 4709
• 4710
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 7714 to 7726S

1. 1

   Visually inspect the mid-mount electro valve block wiring harness for chafing, cuts, or pinch points caused by loader frame movement.

2. 2

   Disconnect the electrical plug at the suspect solenoid and check the pins for moisture, dirt, corrosion, or pushed-back terminals.

3. 3

   Measure the resistance (Ohms) across the two terminals of the solenoid coil using a digital multimeter. An 'OL' (Open Line) or infinite reading indicates the coil has failed internally.

4. 4

   With the connector unplugged, have an operator actuate the loader joystick in the cab. Check for proper voltage and ground at the harness connector to rule out a faulty joystick spool position sensor or a broken harness wire.

1. 1

   Power Down

   Turn off the tractor, remove the key, and disconnect the negative battery cable to prevent short circuits.

2. 2

   Access the Valve

   Locate the mid-mount electro valve assembly. Clean the area around the faulty solenoid to prevent dirt from entering the hydraulic system.

3. 3

   Disconnect Wiring

   Unplug the electrical harness connector from the failed solenoid.

4. 4

   Remove the Coil

   Remove the retaining nut located at the end of the solenoid cartridge stem.

5. 5

   Swap the Part

   Slide the old solenoid coil off the valve stem. (Note: You usually do not need to open the hydraulic system or remove the cartridge valve itself, just the electromagnetic coil).

6. 6

   Install New Coil

   Slide the new OEM solenoid coil onto the stem and reinstall the retaining nut. Do not overtighten, as this can distort the cartridge.

7. 7

   Reconnect

   Plug the electrical harness back into the new solenoid, ensuring the locking tab clicks into place.

8. 8

   Test and Clear

   Reconnect the battery. Start the tractor and test the loader functions via the joystick. Finally, use a compatible Massey Ferguson diagnostic tool to clear the 0B.02.02 historical fault code from the system.