Massey Ferguson 04.00.E9 – TRANS: Transmission Internal Software Issue

This indicates a software or logic fault within the transmission's electronic control system. It typically means the controller has detected an internal memory error (such as a RAM/EEPROM fault), a corrupted software reference curve, or a logic condition it cannot correct.

• 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
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613

1. 1

   Check electrical power and ground integrity for low voltage during cranking, weak charging from the alternator, or poor grounds

2. 2

   Verify CAN bus communication to ensure there are no lost messages between the transmission controller (Autotronic) and other modules (like the Dash or DCC2/DCC3)

3. 3

   Use a diagnostic tool to check live data and confirm if the transmission is actually disabled, stuck in a range, or exhibiting intermittent function

4. 4

   Check calibration status to see if the transmission has lost its calibration data due to corrupted reference curves

1. 1

   Clear the Code

   Connect the Massey Ferguson EDT (Electronic Diagnostic Tool) or Wintest software and attempt to clear the fault code to see if it was a transient error caused by a voltage drop.

2. 2

   Recalibrate the Transmission

   If the code clears but shifting is erratic, perform a full transmission calibration procedure to rewrite the reference curves to the module.

3. 3

   Software Flash/Update

   If the code returns immediately or the module indicates a corrupted software reference curve, use the Wintest/EDT software to re-flash or update the Autotronic transmission controller.

4. 4

   Module Replacement

   If the diagnostic software cannot communicate with the module, or if the internal memory (RAM/EEPROM) has suffered a hard failure that cannot be overwritten, the Autotronic transmission control unit must be replaced.