Massey Ferguson 06.02.E7 – TRANS1: Issue With Rear PTO On/Off Solenoid Power Supply / Transmission Module 1 Software Issue Detected For Rear PTO Circuit

The controller is detecting an improper voltage, open circuit, short circuit, or a software anomaly in the power supply circuit responsible for engaging the rear PTO solenoid.

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

1. 1

   Verify software version with an AGCO dealer to see if the TRANS1 module requires an update (especially for Dyna 6 variants where this code indicates a software issue).

2. 2

   Inspect the wiring harness and connector at the rear PTO solenoid for corrosion, moisture, or loose pins.

3. 3

   Test the rear PTO ON/OFF switch in the cab and the external fender buttons to ensure they are sending the correct signals to the TRANS1 module.

4. 4

   Check the hydraulic fluid level and inspect the hydraulic filters for contamination, which can cause internal valve components to stick and burn out the solenoid coil.

1. 1

   Secure the tractor

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

2. 2

   Relieve hydraulic pressure

   Relieve all hydraulic pressure from the system to prevent fluid spray.

3. 3

   Disconnect battery

   Disconnect the tractor's battery to prevent electrical shorts during the repair.

4. 4

   Locate solenoid valve

   Locate the Rear PTO On/Off Solenoid Valve on the rear PTO/transmission housing.

5. 5

   Disconnect wiring harness

   Carefully disconnect the electrical wiring harness from the solenoid, checking the connector for any signs of corrosion.

6. 6

   Remove faulty valve

   Unbolt and remove the faulty solenoid valve.

7. 7

   Clean mounting surface

   Thoroughly clean the mounting surface to ensure no dirt or contamination enters the hydraulic system.

8. 8

   Install new valve

   Install the new solenoid valve and tighten the mounting hardware.

9. 9

   Reconnect electrical connector

   Reconnect the electrical connector, ensuring the weather seal is intact.

10. 10

    Test and replace filter

    Reconnect the battery, start the tractor, and test the PTO engagement. (Note: It is highly recommended to change the hydraulic filter during this repair if contamination caused the original valve to stick.)