CLAAS Id76FCh / 76FCh – BDG (A103): No message has been transmitted by the TR2 module for at least 5 seconds

This is a CAN bus communication error indicating that the TR2 transmission module has stopped broadcasting data on the network. As a result, the TR2 transmission module and its associated functions may be lost, and the tractor may experience handling or shifting problems, or default to a degraded operating mode.

• Axion 800 series
• Axion 850-810
• Arion 600 and 500 series
• Arion 640-510
• Arion 400 series
• Arion 430-410
• Axion 900 series
• Axion 960

1. 1

   Check the Powertrain CAN bus network for continuity, open circuits, or short circuits

2. 2

   Check the TR2 module's operating conditions using the CLAAS Diagnostic System (CDS)

3. 3

   Verify that the BDG CAN network communication module is functioning and properly relaying messages

4. 4

   Check the connectors and continuity of the wiring harnesses linking the BDG and TR2 components

5. 5

   Check the sources of energy to the TR2 module, including fuses, power supply relays, and ground connections

1. 1

   Verify the Fault

   Confirm the presence of code Id76FCh / 76FCh on the Cebis terminal or via the CLAAS Diagnostic System (CDS).

2. 2

   Inspect Wiring

   Physically inspect the Powertrain CAN bus wiring harness between the BDG (A103) module and the TR2 (A57-2) module. Look for chafed wires, corrosion in the connector pins, or loose connections.

3. 3

   Test Power Supply

   Use a multimeter to verify that the TR2 (A57-2) module is receiving proper 12V power and has a solid ground. A loss of power to the TR2 module will cause it to stop transmitting messages, triggering this exact code.

4. 4

   Test CAN Resistance

   With the battery disconnected, measure the resistance across the Powertrain CAN bus to ensure the terminating resistors are intact (typically 60 ohms).

5. 5

   Component Replacement

   If the wiring, power, and ground are all verified as good, the fault lies internally within either the TR2 (A57-2) transmission module or the BDG (A103) gateway module. Replace the faulty module and calibrate/program it using the CLAAS Diagnostic System.