Massey Ferguson T113 – TRANS1: Issue With Speed Sensor Values

The transmission controller detects that the intermediate speed sensor (X483) is reporting no value (0 km/h or 0 mph), but the actual forward travel speed (calculated via the theoretical forward speed sensor or engine speed sensor) is greater than 0 km/h.

• 5612
• 7622
• Interim Tier 4 (2012-2015)
• 7614
• 5611
• 7615
• 5610
• 5613
• 7620
• 7616
• 7618
• 5608
• 5609
• 7619
• 7626
• 7624
• 5400 Series
• 5600 Series
• 5700 SL Series
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 6400 Series
• 6600 Series
• 7600 Series
• 7700 Series
• 7714
• 7715
• 7716
• 7718
• 7719
• 7720
• 8400 Series
• 8450
• 8460
• 8470
• 8480

1. 1

   Visually inspect the intermediate speed sensor (X483) on the transmission housing. Check the wiring harness and connector for breaks, corrosion, or a loose plug.

2. 2

   Perform a resistance test by unplugging the sensor and testing its internal resistance with a multimeter. A healthy sensor reads around 540 Ohms (+/-). If it reads open (infinite) or shorted, it has failed internally.

3. 3

   Check the wiring harness for continuity between the sensor plug and the TRANS1 controller pins to rule out a broken wire in the loom.

4. 4

   Remove the sensor and inspect the magnetic tip. If it is heavily coated in metal shavings, clean it and re-test. Note: Excessive metal shavings can indicate internal transmission wear.

1. 1

   Park and secure tractor

   Safely park the tractor on level ground, engage the parking brake, and turn off the engine.

2. 2

   Clean transmission housing

   Clean the exterior of the transmission housing around the intermediate speed sensor to prevent dirt from falling into the transmission.

3. 3

   Disconnect wiring harness

   Disconnect the electrical wiring harness from the sensor.

4. 4

   Remove faulty sensor

   Unscrew and remove the faulty speed sensor from the transmission housing.

5. 5

   Lubricate new sensor O-ring

   Lubricate the O-ring on the new sensor with a small amount of clean transmission fluid.

6. 6

   Install new sensor

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

7. 7

   Reconnect wiring harness

   Reconnect the electrical harness, ensuring the locking tab clicks securely into place.

8. 8

   Clear fault code and test drive

   Turn on the tractor ignition, clear the T113 fault code using a diagnostic tool or the onboard display, and test drive the tractor to verify the transmission shifts correctly and the code does not return.