Massey Ferguson 0A.30.13 – Onboard Diagnostic System / Main Control Unit: External Hydraulic Valve 3 Issue

Indicates a malfunction or connection problem on the third external hydraulic remote valve (spool valve). The system typically registers a signal out of range, an open circuit, or a short to ground/power on the valve's solenoid 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

   Inspect the solenoid connector on External Hydraulic Valve 3 for harness rub points, damaged wires, or corrosion

2. 2

   Test the solenoid coil resistance with a multimeter and verify ground integrity to check for an open circuit or short to ground

3. 3

   Check the hydraulic/transmission oil for contamination (dirt or debris) and ensure the hydraulic oil filter is not blocked

4. 4

   Look for visible fluid leaks around the valve body and check if the hydraulic response on remote 3 is slow, weak, or completely dead

1. 1

   Inspect and Repair Wiring

   If the diagnostic checks reveal a rubbed harness or corroded connector at Valve 3, repair the wiring or replace the pigtail connector.

2. 2

   Replace the Solenoid/Valve

   If the solenoid coil fails the resistance test, or if the valve is mechanically jammed with debris and cannot be freed, remove and replace the External Hydraulic Valve 3 solenoid or the entire valve block section.

3. 3

   Service the Hydraulics

   If dirty oil caused the valve to stick, drain the hydraulic fluid, replace the transmission/hydraulic filters, and refill with clean OEM-spec hydraulic fluid.

4. 4

   Clear the Code and Unlock Valves

   Access the Control Unit Dashboard, delete the error code from the dashboard interface, and manually unlock the valves via the system interface.