Fendt 1E.1.D2 – Engine Control Unit (A051 - EDC 7): EEPROM memory access

The engine control unit was unable to properly read from or write to its internal EEPROM memory. A highly common cause for this specific fault is that the battery disconnect switch (S092) was activated too early after the tractor was shut down, interrupting the ECU's data saving process.

• 309 Vario COM III
• 310 Vario COM III
• 311 Vario COM III
• 312 Vario COM III
• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• 411 Vario COM III
• 412 Vario COM III
• 413 Vario COM III
• 414 Vario COM III
• 415 Vario COM III
• 712 Vario COM III
• 714 Vario COM III
• 716 Vario COM III
• 718 Vario COM III
• 815 Vario COM III
• 817 Vario COM III
• 818 Vario COM III
• 820 Vario COM III

1. 1

   Interview the operator regarding shutdown procedures to verify if the battery disconnect switch is being used immediately after turning off the ignition key

2. 2

   Connect the Fendt SERDIA (Service Diagnostics) program to the tractor

3. 3

   Read the fault memory to confirm the presence of 1E.1.D2 (internal SERDIA fault code FC:008E)

1. 1

   Delete error memory

   Using the SERDIA diagnostic tool, attempt to delete the error from the engine control unit's memory.

2. 2

   Instruct operator on shutdown procedures

   Instruct the operator on proper shutdown procedures: they must wait at least 45 seconds after turning off the ignition before activating the battery disconnect switch (S092) to allow the EDC 7 to finish writing to the EEPROM.

3. 3

   Load new operating software

   If the error cannot be deleted or immediately returns upon the next startup, the software or EEPROM is corrupted. Use SERDIA to load new operating software (EOL programming) to the EDC 7 control unit.

4. 4

   Repair or replace control unit

   If loading new software fails or the EEPROM is permanently damaged, the EDC 7 control unit must be removed and sent out for internal hardware repair or replaced entirely.