CLAAS 7631h: Loss of gear upshift control information on Powertrain CAN bus (module number 2)

The system has detected a loss of gear upshift control information on the Powertrain CAN bus. This may result in the inability to shift gears properly. An audio warning is triggered, and the system will return to the default start gear after shifting to transmission neutral.

1. 1

   Powertrain CAN bus communication

2. 2

   module number 2 for proper operation

3. 3

   connections and wiring related to the Powertrain CAN bus

1. 1

   Inspect

   Inspect the Powertrain CAN bus wiring and connections for damage, corrosion, or loose contacts.

2. 2

   Test

   Test the communication on the Powertrain CAN bus using a diagnostic tool to confirm the presence of the fault.

3. 3

   Check

   Check the operation of module number 2 to ensure it is functioning correctly and properly communicating on the CAN bus.