Massey Ferguson 06.00.60 – TRANS1: Issue With Signal Values From PTO Clutch Speed Sensor And PTO Output Speed Sensor DYNA VT (TRANS1)

The transmission controller detects a discrepancy of at least 12% to 20% between the readings of the PTO clutch speed sensor (X15) and the PTO output shaft speed sensor (X16), indicating an electrical failure or mechanical PTO clutch slippage.

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

1. 1

   Check the supply voltage and signal integrity for both the X15 (PTO clutch speed) and X16 (PTO output shaft speed) sensors (electrical cause).

2. 2

   Inspect the wiring harnesses connecting the TRANS1 module to the X15 and X16 sensors for chafing, corrosion, or loose pins.

3. 3

   Verify that the PTO speed solenoid valves (X3 and X4) are correctly connected and are not mechanically locked in the deactivated position.

4. 4

   If electrical circuits and sensors are functioning properly, check for mechanical slippage (e.g., slipping PTO clutch disc, failure to separate, or PTO brake failing to engage).

1. 1

   Access the Sensors

   Locate the X15 and X16 speed sensors on the Dyna-VT transmission housing.

2. 2

   Test/Replace Sensors

   Using a multimeter, test the resistance and output of the sensors. If either sensor is dead or sending erratic signals, remove the retaining bolt, pull the faulty sensor from the housing, and install a new OEM speed sensor.

3. 3

   Address Mechanical Faults

   If the sensors and wiring are confirmed good, the transmission will require a mechanical teardown of the PTO clutch pack to replace worn clutch discs that are causing the 12%+ slippage.

4. 4

   Clear Codes

   After replacing the sensor or repairing the clutch, use a specialized Massey Ferguson diagnostic tool to clear the 06.00.60 DTC from the TRANS1 module and run a PTO calibration/test to ensure the speeds match.