Massey Ferguson 0A.10.1A: External Hydraulic Valve 1 Issue

Indicates a malfunction associated with the first external hydraulic remote valve (spool valve). Related codes in the same hydraulic subsystem point to underlying conditions such as a connection problem, an issue with the spool position sensor value, or an issue with the calibration of valves.

• 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

1. 1

   Check the wiring harness and electrical connectors at External Hydraulic Valve 1 for corrosion, damage, or loose connections

2. 2

   Use a diagnostic interface device to monitor the live data for the 'Spool Position Sensor Value' on Valve 1 to see if the sensor is reading out of range or is unresponsive

3. 3

   Attempt to perform a hydraulic valve calibration procedure via the tractor's diagnostic system

1. 1

   Repair or replace wiring

   Repairing or replacing damaged wiring/connectors at the valve.

2. 2

   Replace sensor or valve assembly

   Replacing the spool position sensor or the entire External Hydraulic Valve 1 assembly if internal mechanical failure or sensor failure has occurred.

3. 3

   Clear DTCs and calibrate valve

   Clearing the DTCs and running a mandatory valve calibration using the Massey Ferguson diagnostic tool.