CLAAS 7894h: Invalid Information from WLP Module on CAN Bus

The external function module EXT is receiving invalid information from the WLP (A104) modules for more than 5 seconds over the CAN bus. The information from the WLP is not available on the 7 pin ISO connector.

1. 1

   The connection between the WLP (A104) module and the external function module EXT

2. 2

   The integrity of the CAN bus wiring between the WLP (A104) module and the external function module EXT

3. 3

   The 7 pin ISO connector for proper seating and electrical continuity

1. 1

   Inspect the wiring and connections

   Check the wiring and connections between the WLP (A104) module and the external function module EXT for damage, corrosion, or loose connections.

2. 2

   Test the CAN bus communication

   Use a diagnostic tool to test the CAN bus communication between the WLP (A104) module and the external function module EXT.

3. 3

   Verify the 7 pin ISO connector

   Check the 7 pin ISO connector for proper seating, damage, or contamination that may prevent the WLP information from being available.