Massey Ferguson 108.04 – Engine Control Unit (ECU) / AGCO SISU POWER EEM4: Ambient Pressure Sensor Issue (ECU)

The engine management monitoring system has detected a voltage reading from the ambient (barometric) air pressure sensor that falls below the acceptable operational range, pointing to a hardware defect.

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 4700 Series
• 4707
• 4708
• 4709
• 4710
• 5600 Series
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5700SL Series
• 7600 Series
• 7700 Series
• 7700S Series
• 8600 Series

1. 1

   Connect the AGCO Electronic Diagnostic Tool (EDT) or WinEEM4 service tool

2. 2

   Verify that the 00108.04 (SPN 108 FMI 4) fault is currently active

3. 3

   Save the ECU error log to your diagnostic tool

4. 4

   Erase the error log from the ECU memory

5. 5

   Restart the ECU (cycle the ignition key off, wait for the ECU to power down, and turn the key back on)

6. 6

   Re-check the active codes. If the fault code returns immediately, the internal sensor has permanently failed

1. 1

   Condemn ECU

   If the diagnostic reset fails to clear the code, the entire Engine ECU must be condemned.

2. 2

   Disconnect battery

   Disconnect the negative battery terminal.

3. 3

   Disconnect wiring harnesses

   Disconnect the 154-pin or 192-pin wiring harness connectors from the EEM4 ECU.

4. 4

   Remove ECU

   Unbolt and remove the defective ECU from its mounting bracket.

5. 5

   Install replacement ECU

   Install the replacement EEM4 ECU.

6. 6

   Reconnect components

   Reconnect the wiring harnesses and battery.

7. 7

   Program ECU

   Programming Required: A new or remanufactured ECU will be blank or lack the specific tractor's calibration. You must use the AGCO EDT software to flash the correct engine software, input the injector trim codes, and calibrate the module to the tractor's CAN bus system.