CLAAS Id76FDh / 76FDh – BDG (A103): No message has been transmitted by the TR3 module for at least 5 seconds.
Issue description
The TR3 transmission module and its associated functions may be lost, meaning the tractor will likely enter a degraded mode or lose specific transmission capabilities.
Applies to these machines
14 machines- Axion 800
- Axion 810
- Axion 840
- Axion 850
- Axion 900
- Axion 950
- Arion 410
- Arion 430
- Arion 510
- Arion 530
- Arion 550
- Arion 620
- Arion 640
- Arion 650
Check the cause
Check the Powertrain CAN bus network: Inspect the wiring harness for continuity, open circuits, or short-circuits to ground/12V.
Check the TR3 transmission module (A57-3): Verify the physical condition of the module and its connectors.
Check the BDG CAN network communication module (A103): Ensure the gateway module is securely connected and undamaged.
Check Power and Ground: Verify the sources of energy (fuses, power supply, and ground connections) to both the TR3 and BDG modules.
Analyze Interacting Codes: Check if there are other CAN bus errors (e.g., Id7700h, Id7702h) that might indicate a broader network short rather than a failed module.
Repair steps
Document codes
Note all error codes present on the tractor's CEBIS terminal or via the CLAAS Diagnostic System (CDS).
Inspect wiring
Disconnect the harnesses linking the TR3 (A57-3) and BDG (A103) modules. Use a multimeter to test the CAN High and CAN Low lines for continuity and ensure they are not shorted to power or ground.
Verify power and ground
With the key ON, verify that the TR3 module is receiving proper 12V supply and has a clean ground.
Replace faulty module
If the wiring, fuses, and power/ground are all intact, the fault lies internally within either the TR3 module (failing to send) or the BDG module (failing to receive). Replace the faulty module.
Clear and retest
Clear all error codes from the memory. Restart the tractor and operate it to see if the anomaly appears again. Note: Module replacement may require parameter configuration/calibration via the CLAAS Diagnostic System.
Parts you might need
(3)TR3 Transmission Module
Requires programming/calibration via CDS upon installation. CCN: A57-3 or A143.
BDG CAN Network Communication Module
0021704780Electrical Box BDG / Bridge / CAN Gateway Module (CCN: A103)
Powertrain CAN Bus Wiring Harness
Main Cab/Transmission Wiring Harness. Part number depends on specific tractor model and wheelbase.
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