Massey Ferguson 06.01.E5 – TRANS1: Issue With Values Received From Rear PTO Speed Sensors Dyna VT (TRANS1)

The transmission control unit is receiving erratic, out-of-range, or missing signals from the rear Power Take-Off (PTO) speed sensor.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 6600 series
• 7600 series
• 8600 series

1. 1

   Inspect the wiring harness and connectors between the Rear PTO Speed Sensor and the TRANS1 control module for signs of damage, chafing, corrosion, or loose connections.

2. 2

   Remove the sensor and check for physical damage or a buildup of metal shavings on the magnetic tip, which can distort the speed signal.

3. 3

   Use a multimeter to check for continuity, proper voltage, and ground at the sensor connector.

4. 4

   Use a diagnostic tool (such as AGCO EST / Wintest) to monitor live PTO speed values. Check if the sensor is reading erratically or is completely dead when the PTO is engaged.

1. 1

   Power down the tractor, engage the parking brake, and ensure the PTO is disengaged.

2. 2

   Locate the Rear PTO Speed Sensor on the rear transmission/PTO housing.

3. 3

   Carefully disconnect the electrical connector from the sensor.

4. 4

   Remove the retaining bolt securing the sensor to the housing.

5. 5

   Pull the old sensor out of the housing.

6. 6

   Clean the mounting surface and the port to prevent dirt or debris from entering the transmission.

7. 7

   Insert the new PTO speed sensor and secure it with the retaining bolt.

8. 8

   Reconnect the electrical harness, ensuring the connector clicks into place.

9. 9

   Turn on the tractor and use a diagnostic tool to clear the 06.01.E5 fault code from the TRANS1 module.

10. 10

    Test the PTO operation to ensure the speed is reading correctly on the dash/terminal and verify that the code does not return.