Fendt 1E.1.71 – A051 - ECU, engine control unit (EDC 7): Start of injection period in cylinder 2 outside setpoint range or absent

Indicates a fuel delivery or timing issue where the engine control unit detects that the fuel injector for cylinder 2 is either not firing at the commanded time, or the injection event is completely missing.

• 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
• Fendt 300 Vario COM III
• Fendt 400 Vario COM III
• Fendt 700 Vario COM III
• Fendt 800 Vario COM III
• 820 Vario Greentec
• Fendt 900 Vario COM III
• 922
• 924
• 927
• 930
• 933
• 936

1. 1

   Connect the Fendt SERDIA service diagnostics program and verify the fault code (SERDIA internal fault code reference is FC:0019)

2. 2

   Check the wiring harness between the EDC 7 ECU and the cylinder 2 fuel injector for cable breaks, chafing, or short circuits

3. 3

   Use the SERDIA software to perform an actuator function test (cylinder shut-off/cut-out test) to isolate cylinder 2 and confirm it is not contributing to engine operation

4. 4

   Measure the resistance of the cylinder 2 injector solenoid to determine if the injector has failed internally

1. 1

   Resolve Wiring Issues

   If the diagnostic checks reveal a short circuit or cable break in the injector harness, repair the damaged wiring or replace the affected harness section.

2. 2

   Replace the Injector

   If the wiring tests good but the injector solenoid is out of specification or mechanically failed, depressurize the fuel system and replace the cylinder 2 fuel injector.

3. 3

   ECU Verification

   If both the wiring and the injector are perfectly functional, the Bosch EDC 7 unit itself may have a burnt internal injector driver and require cloning/replacement.

4. 4

   Clear the Fault

   Once the physical repair is complete, you must use the SERDIA diagnostic tool to delete the error from the EDC 7 memory.