Massey Ferguson 04.2.11 – TRANS1: Reverse Clutch Solenoid Amp Draw Issue

The transmission controller continuously measures the electrical current draw from the reverse clutch solenoid circuit. If the current draw falls below a specific limit or is outside the expected parameters, it triggers this code. This typically indicates that the circuit is open, shorted to ground, or has lost its power supply.

• 4707
• 4708
• 4709
• 4710
• T4 (2015-2021)
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S

1. 1

   Inspect the wiring harness and connectors running from the TRANS1 controller to the reverse clutch solenoid on the transmission valve block for chafed wires, corrosion, or loose pins.

2. 2

   Use a multimeter to check the circuit for an open condition, a short to ground, or a loss of 12V power supply.

3. 3

   Unplug the reverse clutch solenoid and measure the resistance across its coil pins. If it reads as an open circuit (infinite resistance) or a dead short, the solenoid coil has failed internally.

4. 4

   Verify that the reverse clutch solenoid is actually being energized (receiving voltage) by the controller when the reverse shuttle is engaged.

1. 1

   Disconnect Power

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

2. 2

   Locate the Solenoid

   Locate the reverse clutch solenoid on the transmission control valve block (typically mounted on the side of the transmission housing).

3. 3

   Disconnect and Remove

   Unplug the electrical connector from the faulty solenoid. Remove the retaining bolt or snap ring holding the solenoid in place, and carefully pull the solenoid cartridge out of the valve body.

4. 4

   Install New Solenoid

   Lubricate the O-rings on the new reverse clutch solenoid with clean transmission fluid. Insert it into the valve block and secure it with the retaining hardware.

5. 5

   Repair Wiring

   If the diagnostic checks revealed a wiring issue rather than a failed solenoid, splice and heat-shrink the damaged wires or replace the damaged connector pigtail.

6. 6

   Reconnect and Reassemble

   Plug the electrical connector back into the solenoid and reconnect the battery.

7. 7

   Transmission Calibration

   After replacing transmission solenoids, it is highly recommended to perform a transmission clutch calibration procedure (often done via the dashboard or a diagnostic tool) to ensure the controller learns the engagement characteristics of the new solenoid and provides smooth shifting.

8. 8

   Test Drive

   Clear the fault codes and test the tractor's forward/reverse shuttle operation to ensure the code does not return.