Massey Ferguson 0B.02.23 – Hydraulic Control Module / Autotronic / Datatronic: Issue With Calibration OF Valves

The tractor's onboard diagnostic system detected a failure, sequence error, or interruption while attempting to calibrate the electro-hydraulic valves (associated with Loader Mid-Mount Electro Valves and external hydraulic remote valves).

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 7700 Series
• 7700S Series
• 7714
• 7726S
• 6600 Series

1. 1

   Check Loader Selector Switch Voltage: Verify that the cab joystick/selector switch is sending the correct voltage to the ECU.

2. 2

   Inspect Solenoid Amp Draw: Check the mid-mount electro valve solenoids for open circuits, low amp draw, or high amp draw using a multimeter.

3. 3

   Check Wiring and Connectors: Inspect the wiring harness connecting the cab joystick to the mid-mount valve block for corrosion, moisture, or chafing.

4. 4

   Verify Calibration Conditions: Ensure hydraulic fluid is at normal operating temperature, engine RPM is stable, and no other hydraulic levers/PTO are operated during the process.

1. 1

   Prepare the Tractor

   Park on a level surface, warm up the hydraulic fluid, and ensure no implements are suspended in the air. Do not operate the air conditioning or other heavy electrical/hydraulic loads during calibration.

2. 2

   Initiate Valve Calibration

   Using the Datatronic terminal or an AGCO dealer diagnostic tool, navigate to the hydraulic valve calibration/renumbering menu.

3. 3

   Follow the Sequence Strictly

   Initiate the calibration for the mid-mount valves. Ensure the renumbering procedure is completed in the exact correct order to avoid sequence errors.

4. 4

   Test Solenoids

   If the calibration repeatedly fails and aborts, disconnect the electrical connectors at the mid-mount valve block. Test the resistance of the forward/reverse/lift solenoids. Replace any solenoid that is out of spec or shorted to ground.

5. 5

   Replace the Valve Block

   If the solenoids and wiring are good but the valve fails to calibrate (due to mechanical binding or a failed internal position sensor), replace the mid-mount control valve.

6. 6

   Recalibrate

   After replacing any solenoids, switches, or the valve block, rerun the electronic valve calibration procedure to clear the 0B.02.23 code.