Massey Ferguson 06.02.55 – TRANS1: Issue With Signal From PTO Neutral Button Dyna VT

The transmission controller is receiving an erratic, missing, or out-of-range electrical signal from the PTO (Power Take-Off) neutral switch located in the cab. When this code is active, the system may lock out PTO engagement as a safety precaution to prevent uncommanded implement operation.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626

1. 1

   Check the PTO neutral button on the right-hand console/multifunction armrest to ensure it is not physically stuck, broken, or packed with dirt/debris.

2. 2

   Access the underside of the switch panel and inspect the wiring harness and connector going to the PTO switch for corrosion, backed-out pins, or chafed wires.

3. 3

   Use a multimeter to test the switch for continuity, verifying that the internal contacts open and close properly when the button is pressed.

4. 4

   Check for accompanying codes like 06.02.B5 or 06.02.B6, which point to a broader CAN BUS communication failure rather than just a faulty switch.

1. 1

   Power Down

   Turn off the tractor, remove the key, and disconnect the negative battery terminal to prevent electrical shorts.

2. 2

   Access the Switch

   Carefully pry up or unscrew the trim piece on the right-hand console or armrest where the PTO controls are housed.

3. 3

   Disconnect

   Unplug the electrical harness connector from the back of the PTO neutral switch.

4. 4

   Remove

   Depress the retaining tabs on the sides of the switch body and push it up through the top of the console panel.

5. 5

   Install

   Snap the new OEM replacement switch into the panel.

6. 6

   Reconnect

   Plug the electrical connector back in, ensuring the locking tab clicks securely.

7. 7

   Reassemble

   Reinstall the console trim piece and reconnect the battery.

8. 8

   Clear Codes

   Use a compatible diagnostic tool to clear the 06.02.55 code from the TRANS1 module.

9. 9

   Test

   Start the tractor and cycle the PTO through its neutral and engaged states to verify the repair.