Hello, I try it here in the forum: I had a Corsa D CTDI 90PS. Due to a water damage the engine control unit took water. It was changed. Now there is no communication on the CAN bus. The bus runs from the OBD plug to the instrument cluster, the ABS control unit and the MSG. If I pull off the last two control units, then the bus runs or lacks the final resistance? I have to somehow meet the cause, so I always wanted to clamp a control unit more , until the bus collapses again. The bus lines themselves have 0 ohms and no ground closure (from the OBD plug to the, MSG).