The warning light and alarm keep going on in the combine. It seems like when we start the combine it works on and off for a short while but then does not work at all- ie keeps alarming. We have approx. 10V power at the sensor. The ground is good- ie the air cleaner on the same ground works fine. I believe the tank of the oil reservoir grounds to the frame so it does not need it anyway. We replaced the sensor with a new one but that did not help either. When we bypass the sensor completely I would assume the alarm should stop. It stays on. The only assumption we have left is that it would likely be a faulty monitor module. As far as we can tell there is no easy way to test it, bypass it as a temporary fix or easily replace it. We are hopefully going to start harvest if it ever dries out! We have been done the soyabeans by now some years and have hardly begun. We don't even dare open the console to look at the module. We can run like this but if we break something or loosen some of the connections etc we would be in a real bind. We do not want to do that! Not something we need with so much work ahead. Any suggestions? Thanks for any insight.