Fendt 1.2.C5 – Engine Control Module (EDC): Fault in engine stop via engine stop solenoid valve

The system has detected a failure during the engine shutdown process that is managed by the stop solenoid valve. When this code is active, the tractor will enter a restricted operating mode, resulting in reduced engine speed and reduced engine power.

• 409 Vario
• 410 Vario
• 411 Vario
• 412 Vario
• 711 Vario
• 712 Vario
• 714 Vario
• 715 Vario
• 716 Vario
• 717 Vario
• 718 Vario
• 916 Vario
• 920 Vario
• 924 Vario
• 926 Vario
• 930 Vario
• Fendt 300 Vario series
• Fendt 400 Vario series
• 409
• 410
• 411
• 412
• Fendt 700 Vario series
• 711
• 712
• 714
• 716
• Fendt 800 Vario series
• 815
• 817
• 818
• Fendt 900 Vario / Favorit 900 series
• 916
• 920
• 924
• 926
• 930

1. 1

   Review the 'EDC Control' electric diagram to trace the wiring between the EDC Control Module (A021), the Pump Control Unit (A020), and the stop solenoid valve

2. 2

   Inspect the wiring and connectors for discontinuities, loose connections, or short circuits in the harness leading to the engine stop solenoid valve

3. 3

   Connect the FENDIAS diagnostic tool to record the failure and ambient parameters

4. 4

   Run Test 30 (Relay Delay Time: Engine Stop with MAB-Signal) to evaluate the engine stop circuit

1. 1

   Preparation

   Turn the ignition 'OFF' and connect the adaptor box with adapting connectors if performing pin-out tests on the EDC module.

2. 2

   Inspect the Solenoid

   Locate the engine stop solenoid valve on the injection pump assembly. Inspect it for physical damage, corrosion, or fuel leaks.

3. 3

   Test/Replace the Solenoid

   If the wiring (checked in the diagnostic phase) is intact but the solenoid fails to actuate or shows out-of-spec resistance, remove the faulty engine stop solenoid valve and install a replacement.

4. 4

   Clear Codes

   Use the FENDIAS diagnostic software to delete the failure code memory.

5. 5

   Verification

   Start the engine, perform a normal shutdown, and check again with FENDIAS to ensure the fault code does not return.