Massey Ferguson 08.00.28 – HITCH: Issue With Signal From Hitch Draft Control Dial (HITCH)

The ELC module is receiving an erratic, out-of-range, or missing voltage signal from the rotary dial used by the operator to set the draft control sensitivity.

• 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 ELC control panel for physical damage, moisture ingress, or heavy dust accumulation around the draft control dial

2. 2

   Disconnect the harness from the back of the draft control potentiometer and check connector pins for corrosion, bent pins, or pushed-back terminals

3. 3

   Verify the 5V reference and ground supply to the potentiometer from the HITCH module using a multimeter

4. 4

   Perform a signal sweep test by measuring the signal wire voltage while slowly turning the draft control dial from minimum to maximum (should sweep smoothly between 0.5V and 4.5V)

1. 1

   Power Down

   Turn off the tractor, remove the key, and disconnect the negative battery terminal to prevent electrical shorts.

2. 2

   Access the Console

   Carefully pry up or unscrew the trim panel surrounding the ELC control console on the right-hand armrest/fender.

3. 3

   Remove the Dial

   Pull the plastic knob off the draft control dial. Remove the retaining nut holding the potentiometer to the console panel.

4. 4

   Disconnect

   Unplug the electrical connector from the back of the faulty potentiometer.

5. 5

   Install New Part

   Insert the new potentiometer through the console, secure it with the retaining nut, and press the knob back onto the splined shaft.

6. 6

   Reconnect

   Plug the electrical harness back into the sensor and reinstall the console trim.

7. 7

   Calibration

   Reconnect the battery. Turn the key on and use a compatible diagnostic tool (like the Massey Ferguson EDT) to clear the 08.00.28 fault code. Note: A Rear Hitch Module Calibration may be required after replacing ELC input components.