Fendt 0F.1.0A – A038 - ECU, central electrical system: E088 - Direction indicator, front right function non-operable

The front right turn signal is not working, which is typically caused by a blown bulb, a failed LED unit, or an open circuit/wiring fault preventing the load from being detected.

• 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 700 SCR
• Fendt 800 Vario (COM III)
• Fendt 800 S4 Series
• Fendt 900 Vario (COM III)
• Fendt 900 SCR
• Fendt 900 S4 Series
• Fendt 919
• Fendt 922
• Fendt 924
• Fendt 927
• Fendt 930
• Fendt 933
• Fendt 936
• Fendt 939

1. 1

   Visually inspect the front right indicator (E088) to confirm it fails to illuminate when the right turn signal is activated.

2. 2

   Test voltage output directly at the A038 Central Electrical System ECU at connector C2 (X1406). It should read 0 VDC when switched OFF, and pulse at an intermittent 12 VDC when switched ON.

3. 3

   Inspect the wiring harness between connector X1406 and the E088 indicator for breaks, chafing, or corroded ground connections (refer to Vehicle licensing regulations/work lights circuit diagram, Sheet 15).

1. 1

   Turn off the tractor and remove the key

   Ensure the electrical system is depowered.

2. 2

   Access the front right direction indicator housing (E088).

3. 3

   Open the lens cover and inspect the bulb filament.

   If the tractor is equipped with standard halogen bulbs and the filament is blown, replace the bulb.

4. 4

   Unbolt the entire indicator housing and disconnect the pigtail connector.

   Perform this step if the tractor is equipped with a sealed LED assembly (e.g., E215 LED variant) and it has failed.

5. 5

   Use a multimeter to check for continuity in the wiring harness between the indicator socket and pin C2 on connector X1406 at the A038 ECU.

   If the bulb/LED tests fine, perform this check to repair any broken wires or clean corroded pins.

6. 6

   Install the new bulb or LED assembly and reconnect the wiring harness.

7. 7

   Turn the ignition on and test the right turn signal to verify the repair.

8. 8

   Access the tractor's diagnostic terminal to clear the stored 0F.1.0A fault code from the memory.