Massey Ferguson 06.00.E7 – TRANS1: Issue With Rear PTO On/Off Solenoid Power Supply Dyna VT (TRANS1) / Transmission Module 1 Software Issue Detected For Rear PTO Circuit

The system has detected an electrical fault (such as an open circuit, short circuit, or voltage drop) in the power supply to the solenoid that engages the rear Power Take-Off (PTO), or there is a known software anomaly affecting this circuit's logic.

• 7720S
• 7724S
• 7716
• 7720
• Tier 4 (2015-2021)
• 7718
• 7722
• 7722S
• 7715S
• 7718S
• 7715
• 7726
• 7719
• 7714
• 7724
• 7716S
• 7726S
• 6700 S Series
• 8600 Series
• 8700 S Series

1. 1

   Contact a Massey Ferguson dealer to verify if there is a pending software update or reflash available for the TRANS1 module (software issue cause)

2. 2

   Inspect the wiring harness running from the TRANS1 module to the Rear PTO On/Off Solenoid for chafed wires, corrosion in the connectors, or loose pins

3. 3

   Back-probe the PTO solenoid connector to verify it is receiving the correct operating voltage when the PTO switch is engaged in the cab

4. 4

   Use a multimeter to measure the resistance across the PTO solenoid coil pins (an open loop or zero ohms indicates a failed internal coil)

1. 1

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

   Ensure the machine is safely parked before beginning repairs.

2. 2

   Locate the Rear PTO On/Off Solenoid Control Valve on the transmission hydraulic valve block.

   Identify the correct valve for the rear PTO.

3. 3

   Disconnect the electrical connector from the solenoid.

   Carefully unplug the harness from the solenoid valve.

4. 4

   If the diagnostic checks revealed damaged wiring, repair or splice the affected harness section.

   Address any wiring faults found during the diagnostic phase.

5. 5

   If the solenoid itself is faulty, clean the area around the valve to prevent dirt from entering the transmission hydraulics.

   Maintain cleanliness to protect the hydraulic system.

6. 6

   Unbolt and remove the faulty PTO solenoid control valve assembly.

   Remove the defective component from the valve block.

7. 7

   Install the replacement PTO Solenoid Control Valve and tighten to OEM torque specifications.

   Fit the new valve securely according to manufacturer specifications.

8. 8

   Reconnect the electrical harness to the new solenoid.

   Plug the connector back into the newly installed solenoid.

9. 9

   Use a compatible diagnostic tool to clear the 06.00.E7 fault code from the TRANS1 module.

   Clear the error code from the system memory.

10. 10

    Start the tractor and test the rear PTO engagement to confirm the repair.

    Verify that the PTO engages correctly and the fault does not return.