Massey Ferguson 08.01.A0 – Rear Hitch Module (HITCH): Rear Hitch Module Internal Issue, Lost Calibration (HITCH)

The controller managing the rear 3-point linkage has either suffered an internal electronic fault or has lost its positional calibration memory.

• 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

1. 1

   Check supply voltage from the battery and alternator to ensure proper voltage to the hitch module

2. 2

   Inspect the wiring harness and connections leading to the Rear Hitch Module for damaged wires, loose pins, or corrosion

3. 3

   Attempt to clear the code using a compatible diagnostic interface (like AGCO EDT) to see if it is a hard fault

4. 4

   Attempt a factory hitch recalibration, as the code specifically flags 'Lost Calibration'

1. 1

   Park and Prep

   Park the tractor on a flat, level surface. Remove any heavy implements from the rear 3-point hitch to ensure it can move freely through its full range of motion without binding.

2. 2

   Recalibrate the Hitch

   Using the tractor's dashboard interface or the AGCO EDT software, initiate the rear hitch calibration procedure. This usually involves following on-screen prompts to raise and lower the linkage to its maximum and minimum limits so the module can relearn the spool position sensor values.

3. 3

   Test Operation

   Once calibration is complete, cycle the tractor's key off and back on. Test the raise/lower rocker switches to ensure the hitch responds smoothly.

4. 4

   Module Replacement (If Calibration Fails)

   If the module refuses to accept the calibration, or if the 08.01.A0 code persists, the internal circuitry of the Rear Hitch Module has failed.

5. 5

   Disconnect battery

   Disconnect the tractor's battery.

6. 6

   Remove faulty module

   Locate and remove the faulty Rear Hitch Module.

7. 7

   Install new module

   Install the new OEM module and reconnect the battery.

8. 8

   Final Calibration

   A newly installed module will be blank and will immediately require a full hitch calibration using the AGCO EDT before it will operate the linkage.