Massey Ferguson A.43.13 – Vehicle Control Module: External Hydraulic Valve 4 Issue

The tractor's onboard diagnostic system has detected a malfunction, an out-of-range signal, or a connection problem specifically isolated to the 4th external hydraulic remote/spool 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
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S

1. 1

   Inspect the wiring harness and the electrical connector at External Valve 4 (located at the rear hydraulic block) for corrosion, moisture, or backed-out pins

2. 2

   Navigate to the hydraulics page on the Datatronic terminal to verify that Valve 4 is properly named, enabled, and that the flow settings are correctly configured

3. 3

   Check the pilot pressure control solenoid on the valve slice, as electrical failures here will trigger spool valve codes

4. 4

   Ensure the tractor's hydraulic fluid is at the correct level and the hydraulic filters are not restricted

1. 1

   Depressurize the System

   Turn off the tractor and actuate the hydraulic levers/controls to relieve all residual hydraulic pressure from the system.

2. 2

   Disconnect Electricals

   Disconnect the electrical harness from the External Hydraulic Valve 4 slice at the rear valve block.

3. 3

   Remove the Valve Slice

   Unbolt the tie-rods/bolts holding the hydraulic spool valve stack together. Carefully remove the faulty electric spool slice (Valve 4) from the block.

4. 4

   Replace or Rebuild

   Depending on the diagnosis, either rebuild the valve using an OEM repair kit or replace the entire electric spool slice / pilot pressure control unit.

5. 5

   Reassembly

   Insert the new spool slice, ensuring all O-rings between the slices are seated correctly. Re-torque the stack bolts to OEM specifications.

6. 6

   Reconnect and Program

   Reconnect the electrical harness. Important: If a new electric spool slice is installed, it must be programmed and calibrated to the tractor's ECU using a compatible Massey Ferguson diagnostic tool.

7. 7

   Test and Clear

   Top up the hydraulic fluid, test the remote valve for proper operation and leakages, and clear the A.43.13 DTC from the system.