Massey Ferguson 0A.20.1A – Mid Mount Valve Module / Dash: External Hydraulic Valve 2 Issue

Indicates a fault condition within the tractor's second external hydraulic remote valve (spool valve 2) circuit. Related errors point to connection problems or issues with the spool position sensor value.

• 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

   Retrieve active codes using a compatible Massey Ferguson diagnostic tool to confirm if 0A.20.1A is active or stored

2. 2

   Inspect the wiring harness and connectors at External Hydraulic Valve 2 for connection problems

3. 3

   Check the spool position sensor on Valve 2 for physical damage or erratic values

1. 1

   Repair or replace wiring/connectors

   Repair or replace damaged wiring/connectors at the Valve 2 harness.

2. 2

   Replace spool position sensor

   Replace the spool position sensor if the value is out of range.

3. 3

   Replace spool valve assembly

   Replace the external hydraulic spool valve assembly if internal mechanical failure has occurred.