CLAAS 7631h – Claas Tr2 A57 2 Transmission Module: Loss of Gear Upshift Control Information on Powertrain CAN Bus

The system has lost gear upshift control information on the Powertrain CAN bus. This may result in the transmission not responding correctly to upshift commands. The system may return to the default start gear after shifting to transmission neutral. An audio warning is triggered, but no

1. 1

   the Drivestick (R74)

2. 2

   the Armrest (A30) module

3. 3

   the Powertrain CAN bus network

4. 4

   the CLAAS vehicle CAN bus network

5. 5

   the Bridge (A103) module

6. 6

   the “Auto 5” module using tool n° 60 05 033 249

1. 1

   Inspect

   Inspect the Drivestick (R74) for any signs of damage or malfunction.

2. 2

   Inspect

   Inspect the Armrest (A30) module for any signs of damage or malfunction.

3. 3

   Inspect

   Inspect the Powertrain CAN bus network for any physical damage, loose connections, or faults.

4. 4

   Inspect

   Inspect the CLAAS vehicle CAN bus network for any physical damage, loose connections, or faults.

5. 5

   Inspect

   Inspect the Bridge (A103) module for any signs of damage or malfunction.

6. 6

   Test and Adjust

   Test the “Auto 5” module using tool n° 60 05 033 249 and make adjustments if required.