Massey Ferguson 08.1.32 – Rear Hitch Module (HITCH): Issue With Signal From Rear Hitch Top Link Draft Pin (HITCH)

The draft pin is a load-sensing strain gauge that provides continuous feedback to the tractor's Electronic Draft Control (EDC) system regarding the pulling force (draft) exerted by a ground-engaging implement. This fault code triggers when the signal from this sensor is corrupt, out of range, or experiencing an open/short circuit, causing the tractor to default to position control only.

• 4707
• 4708
• 4709
• 4710
• T4 (2015-2021)
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5710 SL
• 5711 SL
• 5712 SL
• 5713 SL
• 7614 through 7626
• 7714 through 7726 (including S models)

1. 1

   Inspect the draft sensing pin for severe physical deformation, overload damage, or moisture ingress

2. 2

   Disconnect the sensor and inspect the electrical connector for corrosion, bent pins, or broken wires

3. 3

   Turn the key to the ON position and check the sensor supply voltage at the connector (often 5V or 8.5V) and check for ground continuity

4. 4

   Clear the fault code and retest. If it returns immediately without an implement attached, it is a hard electrical fault (failed sensor or wiring). If it only returns under load, the strain gauge inside the pin has likely failed

1. 1

   Relieve Pressure

   Lower the rear hitch completely to the ground and safely detach any implement to remove all mechanical load from the draft pin.

2. 2

   Disconnect Electronics

   Turn off the tractor and disconnect the electrical harness from the faulty draft sensing pin.

3. 3

   Remove Hardware

   Remove the retaining bolt, locking collar, or circlip that secures the draft pin in the linkage bracket.

4. 4

   Extract the Pin

   Slide the faulty draft pin out of the linkage bore. If it is seized, use penetrating oil; avoid striking the housing excessively.

5. 5

   Install New Sensor

   Clean the linkage bore thoroughly. Slide the new load sensing pin into place, ensuring the alignment notch/flat is positioned correctly so the strain gauge measures force in the proper direction.

6. 6

   Reassemble

   Secure the pin with the retaining hardware and reconnect the electrical harness.

7. 7

   Calibrate the Hitch

   Replacing a draft sensor will almost always require a rear hitch calibration procedure (failure to do so may trigger code 08.1.B6). This is typically done via the tractor's dashboard diagnostic menu or by using the dealer diagnostic tool to teach the module the new sensor's zero-load baseline.