0B.00.23

Massey Ferguson 0B.00.23 – Mid Mount Valve Module: Issue With Calibration OF Valves

Issue description

The tractor's onboard diagnostic system has detected that the electro-hydraulic valves have not been properly calibrated, or that the stored calibration values are out of range or corrupted.

Applies to these machines

  • 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
  • 7716
  • 7718
  • 7719
  • 7720
  • 7722
  • 7724
  • 7726

Check the cause

  1. Check for other active '0B' codes. If there are accompanying codes for solenoid open circuits, low/high amp draws (e.g., 0B.01.01 through 0B.01.12), or spool position sensor values (0B.X.17 through 0B.X.21), those electrical faults must be resolved before a calibration can be successfully completed.

  2. Inspect the wiring harness and connectors running from the cab to the mid-mount valve block for corrosion, damage, or loose pins.

  3. Ensure the tractor's hydraulic fluid is at normal operating temperature, as cold, thick oil can cause calibration procedures to fail.

  4. Stroke the valves back and forth manually or via the joystick to clear any debris or sticking spools before attempting calibration.

Repair steps

  1. Warm up the tractor

    Warm up the tractor until the hydraulic oil reaches operating temperature.

  2. Ensure no implements are connected

    Ensure no implements are connected to the valves being calibrated, as sudden movements can occur.

  3. Access EHR menus

    Access the tractor's EHR (Electro-Hydraulic Remote) menus via the dashboard instrumentation or connect the dealer Electronic Diagnostic Tool (EDT).

  4. Navigate to EHR CAL screen

    Navigate to the EHR CAL (Calibration) screen.

  5. Initiate calibration

    Follow the on-screen prompts to initiate the calibration. The system will automatically stroke the valves to determine the high and low stops and measure the solenoid valve currents.

  6. Retry calibration if failed

    If the calibration fails the first time, stroke the loader joystick back and forth for a while to clear the spools, then attempt the calibration again.

  7. Clear fault code

    Once calibration is complete, clear the stored 0B.00.23 fault code from the system.

  8. Replace faulty components if calibration repeatedly fails

    If the valve repeatedly fails to calibrate, the spool position sensor or the valve solenoids may be internally faulty and require replacement.

Parts you might need

(4)
  • Mid-Mount Valve Spool Position Sensor

    3712728M2

    Specific OEM numbers vary heavily by valve block manufacturer

  • Mid-Mount Valve Spool Position Sensor

    3712728M4

    Specific OEM numbers vary heavily by valve block manufacturer

  • Mid-Mount Electro Valve Solenoid

  • Mid-Mount Valve Wiring Harness

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