Massey Ferguson 06.00.45 – TRANS1: Issue With Values Received From Rear PTO Speed Sensors Dyna VT (TRANS1)

The onboard diagnostic (OBD) system has detected that the transmission controller is receiving invalid, erratic, or missing signal values from the rear Power Take-Off (PTO) speed sensor. This prevents the system from accurately monitoring the rotational speed of the rear PTO shaft.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 6614
• 6615
• 6616
• 6713 S
• 6714 S
• 6715 S
• 6716 S
• 6718 S
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624

1. 1

   Inspect the Wiring Harness: Check the wiring leading to the rear PTO speed sensor for chafing on the frame, vibration damage, or cuts.

2. 2

   Check the Connector: Disconnect the sensor and inspect the pins. Look for dust, moisture ingress, or corrosion that could cause signal loss or a short circuit.

3. 3

   Test Electrical Supply: Verify the sensor's reference voltage and check the signal wire continuity back to the TRANS1 controller.

4. 4

   Inspect the Sensor Tip: Remove the sensor and check for physical damage or a buildup of metal shavings on the inductive tip, which can distort the speed reading.

1. 1

   Power down the tractor

   Power down the tractor, turn the key switch to the OFF position, and ensure the transmission and PTO are disengaged.

2. 2

   Locate the sensor

   Locate the rear PTO speed sensor on the rear transmission/PTO housing.

3. 3

   Disconnect the connector

   Disconnect the electrical harness connector from the sensor.

4. 4

   Remove the sensor

   Remove the retaining fastener and carefully pull the inductive sensor out of its mounting port.

5. 5

   Clean the mounting area

   Clean the mounting area to ensure no dirt or debris falls into the transmission housing.

6. 6

   Install the new sensor

   Install the new OEM PTO speed sensor and secure it with the retaining fastener.

7. 7

   Reconnect the connector

   Reconnect the electrical connector, ensuring it clicks securely into place.

8. 8

   Clear the fault code

   Use a specialized Massey Ferguson diagnostic tool to clear the 06.00.45 DTC from the TRANS1 module.

9. 9

   Verify the repair

   Start the tractor, engage the PTO, and verify that the speed reads correctly on the instrument panel and the fault code does not return.