Massey Ferguson 8.01.A1 – HITCH module: Rear Hitch Module Internal Issue (HITCH)

The electronic control unit responsible for operating the rear 3-point linkage has detected an internal hardware failure, memory error, or processing fault.

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613

1. 1

   Check the main power supply and ground circuits to the Hitch Module for voltage spikes or drops.

2. 2

   Inspect the multi-pin connector (often a 55-way harness connector on Bosch EHR units) at the module for corrosion, moisture ingress, or backed-out pins.

3. 3

   If the code is accompanied by 08.0.B6 (Lost Calibration), attempt to recalibrate the rear hitch using the tractor's Datatronic console or dealer diagnostic tool.

4. 4

   Use a compatible diagnostic tool (like AGCO EDT) to clear the DTCs, cycle the key, and operate the hitch to see if the code returns immediately.

1. 1

   Disconnect Power

   Disconnect the tractor's battery to prevent electrical shorts or CAN bus spikes during removal.

2. 2

   Locate the Module

   Locate the Rear Hitch Control Module. It is typically mounted inside the right-hand console, under the cab floor, or near the rear linkage valve block.

3. 3

   Disconnect Wiring

   Carefully release the locking mechanism on the wiring harness connector and unplug it from the module.

4. 4

   Remove the Module

   Unbolt the module from its mounting bracket and remove it from the tractor.

5. 5

   Install the New Module

   Mount the replacement module and secure the retaining bolts.

6. 6

   Reconnect Wiring

   Plug in the wiring harness, ensuring the connector is fully seated and locked.

7. 7

   Restore Power

   Reconnect the tractor's battery.

8. 8

   Programming and Calibration

   Connect the AGCO Electronic Diagnostic Tool (EDT). Flash the new module with the correct software for your specific tractor model, then perform the mandatory rear hitch calibration procedure to set the upper/lower limits and draft sensor baselines.