Massey Ferguson T6113 – Transmission Controller (TRANS1): Issue With Rear PTO Shaft Output Speed Sensor Signal

The controller detects an erratic, missing, or out-of-range (overspeed) signal from the rear PTO output shaft speed sensor (X16).

• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• Interim Tier 4 (2012-2015)
• 7714
• 7715
• 7716
• 7718
• 7719
• 7720
• 7722
• 7724
• 7726
• 8600 Series
• 5400 Series
• 6400 Series
• 6600 Series
• 6700 Series
• 8100 Series
• 8200 Series

1. 1

   Inspect the wiring harness and connector leading to the X16 PTO output shaft speed sensor for chafing, breaks, corrosion, or loose seating.

2. 2

   Remove the X16 sensor and inspect the magnetic tip for a buildup of metal shavings that can distort the magnetic signal and cause an overspeed fault.

3. 3

   Verify that the PTO engages and disengages mechanically without binding to rule out a mechanical fault with speed selection or a seized PTO output shaft.

4. 4

   Test the sensor's internal resistance using a multimeter (specifications often note a 540 OHM reading) to verify if it has failed internally.

1. 1

   Preparation

   Park the tractor on a level surface, turn off the engine, remove the key, and engage the parking brake.

2. 2

   Locate the Sensor

   Locate the X16 Rear PTO Speed Sensor on the rear transmission/PTO housing.

3. 3

   Clean the Area

   Thoroughly clean the area around the sensor to prevent dirt or debris from falling into the transmission housing during removal.

4. 4

   Remove the Sensor

   Disconnect the electrical harness. Unbolt the sensor (typically a threaded body, e.g., 32mm thread length) and pull it straight out.

5. 5

   Install the New Sensor

   Lubricate the O-ring on the new sensor with clean transmission fluid. Thread the new sensor into the housing and tighten it to OEM torque specifications.

6. 6

   Reconnect

   Plug the electrical connector back into the sensor harness.

7. 7

   Clear Codes

   Connect the Massey Ferguson EDT (Electronic Diagnostic Tool) to clear the T6113 error code from the TRANS1 module.

8. 8

   Test Operation

   Start the tractor, engage the rear PTO, and verify that the PTO speed displays correctly on the dash/monitor without the code returning.