Fendt 1E.1.D0 – A051 - ECU, engine control unit (EDC 7): Ambient pressure sensor faulty
Issue description
The Deutz EMR3 engine management system has detected a failure or implausible reading from the ambient (atmospheric) pressure sensor, which is integrated internally within the engine control unit.
Applies to these machines
21 machines- 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
- 207 V/F/P Vario
- 208 V/F/P Vario
- 209 V/F/P Vario
- 210 V/F/P Vario
- 211 V/F/P Vario
- 400 Vario COM III
- 700 Vario COM III
- 800 Vario COM III
- 916 Vario COM III
- 920 Vario COM III
- 926 Vario COM III
Check the cause
Connect FENDIAS or Deutz SERDIA diagnostic software to the tractor
Verify battery voltage, main power supplies, and ground connections to the A051 (EDC 7) module to rule out voltage drops or spikes causing internal sensor errors
Attempt to clear the fault (FC:0010) using the SERDIA software
Cycle the ignition to verify if the fault returns immediately, which confirms the internal sensor has failed
Repair steps
Clear the Error
Attempt to delete the error using SERDIA.
Remove the ECU
If the fault cannot be cleared, power down the tractor, disconnect the battery, and remove the A051 Engine Control Unit (EDC 7) from its mounting location.
Repair or Replace
Send the EDC 7 unit to a specialized agricultural electronics repair center for internal board repair, or purchase a replacement EDC 7 unit and have the original data cloned to it.
Reinstall and Program
Install the repaired or replacement ECU. If a blank/new ECU is used, perform EOL (End of Line) programming using the dealer diagnostic tool so the ECU can communicate with the A050 Basic Control Unit, the A077 Immobilizer, and the TMS.
Parts you might need
(6)Engine Control Unit (ECU) / Bosch EDC 7
0 281 020 208A used or replacement ECU cannot simply be plugged in; it is locked to the vehicle's immobilizer. It must be cloned from the original unit or EOL programmed by a dealer.
Engine Control Unit (ECU) / Bosch EDC 7
0 281 020 070A used or replacement ECU cannot simply be plugged in; it is locked to the vehicle's immobilizer. It must be cloned from the original unit or EOL programmed by a dealer.
Engine Control Unit (ECU) / Bosch EDC 7
0 281 010 253A used or replacement ECU cannot simply be plugged in; it is locked to the vehicle's immobilizer. It must be cloned from the original unit or EOL programmed by a dealer.
Engine Control Unit (ECU) / Bosch EDC 7
0 281 020 048A used or replacement ECU cannot simply be plugged in; it is locked to the vehicle's immobilizer. It must be cloned from the original unit or EOL programmed by a dealer.
Engine Control Unit (ECU) / Bosch EDC 7
0 281 020 099A used or replacement ECU cannot simply be plugged in; it is locked to the vehicle's immobilizer. It must be cloned from the original unit or EOL programmed by a dealer.
Engine Control Unit (ECU) / Bosch EDC 7
0 281 020 112A used or replacement ECU cannot simply be plugged in; it is locked to the vehicle's immobilizer. It must be cloned from the original unit or EOL programmed by a dealer.
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