Fendt 01.1.39 – Immobiliser ECU (A077 / B083): Equipment data not available

There is no vehicle equipment data programmed into the immobiliser, or the system is in a 'New activation' state. As a consequence, the engine is shut down, transmission activation is not possible, and the vehicle cannot be started.

• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• 300 Vario (COM III)
• 409 Vario (COM III)
• 410 Vario (COM III)
• 411 Vario (COM III)
• 412 Vario (COM III)
• 711 Vario (COM III)
• 712 Vario (COM III)
• 714 Vario (COM III)
• 716 Vario (COM III)
• 815 Vario (COM III)
• 817 Vario (COM III)
• 818 Vario (COM III)
• 916 Vario (COM III)
• 920 Vario (COM III)
• 922 Vario (COM III)
• 924 Vario (COM III)
• 926 Vario (COM III)
• 927 Vario (COM III)
• 930 Vario (COM III)
• 933 Vario (COM III)
• 936 Vario (COM III)

1. 1

   Verify that the A077 Immobiliser ECU is communicating properly with the A050 Basic Control Unit and the Engine Control Unit (A051/A169/EDC).

2. 2

   Ensure the vehicle serial number stored in the engine control unit matches the one in the immobiliser.

3. 3

   Rule out a faulty immobiliser aerial/antenna or signal line.

1. 1

   Connect diagnostic laptop

   Connect a diagnostic laptop with FENDIAS / SERDIA software to the tractor's transmission bus and comfort bus.

2. 2

   Perform EOL programming

   Perform EOL (End of Line) programming to write the correct vehicle equipment data and performance curves to the A077/B083 Immobiliser ECU.

3. 3

   Teach in vehicle keys

   Teach in the vehicle key(s) again. The immobiliser must recognize its own vehicle keys (it can store a maximum of three keys).

4. 4

   Teach in control units

   If the immobiliser control unit or engine control unit was physically replaced, run the procedure to 'Teach in the B083 immobiliser control unit and/or A051 ECU' so the modules recognize each other and release the starting quantity.