Massey Ferguson 08.00.A0 – Rear Hitch Module (HITCH): Rear Hitch Module Internal Issue (HITCH)

The code indicates that the controller managing the rear 3-point linkage has detected an internal hardware fault, memory error, or has lost its calibration parameters.

• 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
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626

1. 1

   Scan for related codes using a compatible diagnostic tool, such as 08.00.B4 (Rear Hitch Module Calibration Issue) or voltage-related codes (08.01.16).

2. 2

   Inspect the wiring harness and the 55-way connector on the Bosch EHR unit to ensure the module is receiving proper voltage and ground. A voltage drop can sometimes trigger false internal fault codes.

3. 3

   Attempt to clear the code and perform a full rear hitch calibration procedure using the tractor's diagnostic interface, as the code often points to a lost calibration.

1. 1

   Disconnect battery

   Power down the tractor and disconnect the battery to prevent electrical spikes.

2. 2

   Locate hitch module

   Locate the Rear Hitch Module (EHR Control Unit). Location varies by cab configuration but is typically found behind the right-hand console or under the cab floor near the rear linkage valves.

3. 3

   Disconnect wiring

   Carefully disconnect the main wiring harness connector(s) from the module.

4. 4

   Remove faulty module

   Unbolt the faulty module from its mounting bracket.

5. 5

   Install replacement module

   Install the replacement module and secure the mounting hardware.

6. 6

   Reconnect wiring

   Reconnect the wiring harness, ensuring the locking mechanism on the connector is fully seated.

7. 7

   Reconnect battery

   Reconnect the battery.

8. 8

   Calibrate hitch module

   A newly installed hitch module will be blank or uncalibrated. You must perform the OEM rear hitch calibration procedure using a dealer diagnostic tool so the module can learn the upper and lower limits of the linkage position sensors.