Massey Ferguson 04.01.49 – TRANS: Transmission Filter Blockage Sensor Issue (TRANS)

Electrical or signal fault originating from the transmission filter blockage sensor (X20), indicating an issue with the sensor itself or its circuit (e.g., a short, open circuit, or erratic signal).

• 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
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 4707
• 4708
• 4709
• 4710

1. 1

   Check the transmission/hydraulic oil level and condition, as heavily contaminated oil or a severely clogged filter can cause erratic sensor behavior.

2. 2

   Locate the transmission filter blockage sensor (X20) on the transmission filter housing and inspect the wiring harness and connector for chafing, corrosion, or loose pins.

3. 3

   Use a multimeter to check the sensor's resistance and verify that it is receiving the correct reference voltage from the TRANS module.

1. 1

   Secure the Tractor

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

2. 2

   Relieve Pressure

   Allow the transmission/hydraulic system to cool and relieve any residual pressure in the system.

3. 3

   Clean the Area

   Thoroughly clean the area around the transmission filter housing to prevent dirt from entering the hydraulic system when the sensor is removed.

4. 4

   Disconnect the Sensor

   Unplug the electrical connector from the X20 transmission filter blockage sensor.

5. 5

   Remove the Sensor

   Unthread the faulty sensor from the filter housing. Have a catch pan ready, as a small amount of hydraulic fluid may leak out.

6. 6

   Install the New Sensor

   Thread the new OEM sensor into the housing and tighten it to the manufacturer's specified torque.

7. 7

   Reconnect and Test

   Reconnect the electrical harness. Start the tractor, check for leaks around the new sensor, and verify that the 04.01.49 fault code has cleared from the dash/display.

8. 8

   Filter Replacement (Optional but Recommended)

   If the tractor is near its service interval, it is highly recommended to replace the transmission hydraulic filter at the same time.