Massey Ferguson 04.1.13 – Transmission Module (TRANS or TRANS1): Reverse Clutch Solenoid Open Circuit

The transmission controller measures the current draw from the reverse clutch solenoid circuit. If the current draw falls below a specified limit, the controller determines that the circuit is open, shorted to ground, or has lost its power supply.

• 4707
• 4708
• 4709
• 4710
• T4 (2015-2021)
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S

1. 1

   Ensure the tractor is safely parked, wheels are blocked, and the machine cannot move during testing.

2. 2

   Inspect the wiring harness integrated into the gearbox for any visible damage, cuts, or chafing that could cause an open circuit or a short to ground.

3. 3

   Locate the reverse clutch solenoid valve connector and check that the pins are not disconnected, bent, rusty, or corroded.

4. 4

   Verify the power supply to the solenoid by checking if the reverse clutch solenoid is being energized by the controller when the reverse mode is selected.

5. 5

   Test the circuit for continuity from the Transmission Module (TRANS) to the solenoid to confirm if the wiring is open before condemning the solenoid valve itself.

1. 1

   Safely park the machine, turn off the engine, and relieve any residual hydraulic pressure if required by the service manual.

   Safely park the machine, turn off the engine, and relieve any residual hydraulic pressure if required by the service manual.

2. 2

   Locate the reverse clutch solenoid on the transmission control valve block.

   Locate the reverse clutch solenoid on the transmission control valve block.

3. 3

   Thoroughly clean the area around the solenoid to prevent dirt from entering the transmission hydraulic system.

   Thoroughly clean the area around the solenoid to prevent dirt from entering the transmission hydraulic system.

4. 4

   Disconnect the electrical connector from the faulty solenoid.

   Disconnect the electrical connector from the faulty solenoid.

5. 5

   Remove the retaining hardware (screws/bolts) holding the reverse clutch solenoid in place.

   Remove the retaining hardware (screws/bolts) holding the reverse clutch solenoid in place.

6. 6

   Extract the faulty solenoid valve from the transmission block.

   Extract the faulty solenoid valve from the transmission block.

7. 7

   Lubricate the O-rings on the new OEM solenoid valve with clean transmission fluid.

   Lubricate the O-rings on the new OEM solenoid valve with clean transmission fluid.

8. 8

   Install the new solenoid valve and torque the retaining hardware to OEM specifications.

   Install the new solenoid valve and torque the retaining hardware to OEM specifications.

9. 9

   Securely reconnect the electrical connector.

   Securely reconnect the electrical connector.

10. 10

    Clear the 04.1.13 fault code from the Transmission Module using a diagnostic tool.

    Clear the 04.1.13 fault code from the Transmission Module using a diagnostic tool.

11. 11

    Start the tractor and perform a transmission calibration (if required by the specific model's software) and test the tractor in reverse to ensure smooth engagement and that the code does not return.

    Start the tractor and perform a transmission calibration (if required by the specific model's software) and test the tractor in reverse to ensure smooth engagement and that the code does not return.