Massey Ferguson 08.01.51 – HITCH module: Issue With Signal From Rear Hitch Left Draft Pin

The tractor's Electronic Linkage Control (ELC) system is receiving an erratic, missing, or out-of-range electrical signal from the load-sensing draft pin located on the left lower link of the rear three-point hitch. When this fault is triggered, the system typically enters a "degraded" mode, relying solely on the right draft pin sensor to continue operating the hitch in draft mode.

• 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

   Inspect the wire harness leading to the left rear draft pin sensor for damaged wires, chafing, or breaks.

2. 2

   Inspect the 3-pin connector at the sensor and the corresponding pins at the HITCH module for corrosion, moisture ingress, or bent pins.

3. 3

   Use a compatible diagnostic tool to clear the code and see if it returns immediately upon moving the hitch or applying a load, which confirms a hard fault in the sensor or wiring.

1. 1

   Park the tractor on a level surface, lower the rear hitch completely to remove all load from the lower link arms, and turn off the engine.

2. 2

   Disconnect the 3-pin wiring harness plug from the left lower link draft pin sensor.

3. 3

   Remove the retaining hardware (usually a locking bolt, retaining plate, or snap ring) that secures the draft pin to the tractor chassis/lower link mount.

4. 4

   Support the left lower link arm and carefully slide/tap out the faulty draft pin sensor.

5. 5

   Clean the mounting bore to ensure it is free of debris and rust.

6. 6

   Insert the new draft pin sensor, ensuring the alignment notch/flat matches the retaining hardware orientation.

7. 7

   Reinstall the retaining hardware and torque to OEM specifications.

8. 8

   Reconnect the 3-pin wiring harness.

9. 9

   Turn on the tractor, clear the 08.01.51 fault code using a diagnostic tool, and perform a functional test of the hitch draft control.