Massey Ferguson 04.00.82 – Transmission Control Module (TRANS): Transmission Speed Sensors Issue With Signals

The tractor's computer is receiving erratic, missing, or implausible data from the transmission speed sensor(s). This can result in rough shifting, poor fuel economy, or the tractor entering a limp mode.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 6613
• 6614
• 6615
• 6616
• 6713
• 6714
• 6715
• 6716
• 6718
• 6713S
• 6714S
• 6715S
• 6716S
• 6718S
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 8650
• 8660
• 8670
• 8680
• 8690
• 8727
• 8730
• 8732
• 8735
• 8737

1. 1

   Inspect the wiring harness and electrical connections at the transmission speed sensor for moisture intrusion, dirt, and vibration damage

2. 2

   Perform software diagnostics on the sensors using Massey Ferguson's Wintest software to verify if the sensor is actually faulty before replacing parts

1. 1

   Locate the Sensor

   Locate the transmission speed sensor on the transmission housing (often on the right side of the center housing or rear of the transmission). Note: Depending on the tractor model and cab configuration, accessing the sensor may require removing the cab floor panel or a rear tire for clearance.

2. 2

   Disconnect

   Carefully disconnect the electrical connector from the old sensor.

3. 3

   Remove

   Remove the mounting bolt securing the sensor to the transmission housing and pull the sensor out.

4. 4

   Install

   Insert the new OEM transmission speed sensor and secure it with the mounting bolt.

5. 5

   Reconnect

   Reconnect the electrical harness, ensuring the connection is clean and properly sealed against moisture.

6. 6

   Calibrate/Reset

   Clear the fault codes from the tractor's computer to ensure the system recognizes the new sensor. Perform any required recalibration procedure for the transmission system.