CLAAS 78B0h: Communication loss between Transmission module TR2 (A57-2) and External function module EXT (A62)
Issue description
The Transmission module TR2 (A57-2) has detected a communication loss with the External function module EXT (A62) during a CSM sequence. This issue occurs when a Gear selection command is disconnected.
Check the cause
The connection between Transmission module TR2 (A57-2) and External function module EXT (A62)
The integrity of the communication circuit between the two modules
The status of the CSM sequence during gear selection
Repair steps
Inspect the physical connection
Check the wiring and connectors between Transmission module TR2 (A57-2) and External function module EXT (A62) for damage, corrosion, or loose connections.
Test the communication circuit
Use a diagnostic tool to verify the communication signal between Transmission module TR2 (A57-2) and External function module EXT (A62).
Review the CSM sequence
Check the CSM sequence for any anomalies or errors that may have caused the gear selection command to be disconnected.
Parts you might need
(0)Get help to fix this fault by requesting a quote
