Massey Ferguson 08.03.23 – HITCH: Rear Hitch Depth Control Dial Signal Voltage Issue (HITCH)

The control module is receiving an erratic, out-of-range, or missing voltage signal from the potentiometer (dial) located in the cab, which the operator uses to set the working depth of the rear three-point hitch.

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

1. 1

   Inspect the wiring harness and connector at the depth control dial (on the right-hand armrest or side console) for pinched wires, corrosion, or loose pins.

2. 2

   Disconnect the potentiometer and turn the key ON. Verify that the sensor is receiving a steady 5V reference voltage and has a solid ground from the HITCH module.

3. 3

   Check the signal wire for continuity between the dial connector and the HITCH module harness. Ensure the signal wire is not shorted to ground or shorted to power.

4. 4

   Measure the resistance of the depth control potentiometer while slowly turning the dial. The resistance should sweep smoothly without any dropouts or dead spots. If the reading jumps erratically, the potentiometer is internally worn.

1. 1

   Safety First

   Park the tractor on a level surface, lower the rear hitch completely (if possible), turn off the engine, and disconnect the negative battery terminal.

2. 2

   Access the Sensor

   Remove the retaining screws for the right-hand control console or armrest trim panel to access the underside of the hitch control panel.

3. 3

   Removal

   Locate the depth control dial. Disconnect its electrical connector. Unclip or unbolt the faulty potentiometer from the console housing.

4. 4

   Installation

   Install the new potentiometer into the console and secure it. Reconnect the electrical harness, ensuring the connector clicks firmly into place.

5. 5

   Reassembly

   Reinstall the console trim panel and reconnect the battery.

6. 6

   Calibration

   Turn the key ON and use a compatible diagnostic tool to clear the 08.03.23 fault code. Depending on the specific tractor series, you may need to perform a brief initialization/calibration cycle for the EHR (Electronic Hitch Control) system so the module can learn the new sensor's minimum and maximum voltage range.