I have a TN75SA with a 16 sp power shuttle tranhsmission. One of the indicator lamps was on at low idle speed is now on all oof the time. The indicator is not the same as the one shown in the owners manual. This indiocator looks like a gear with an arrow on each side pointing to the gear and what looks like a drip in the middle of the gear. Next to the gear is what looks like a steering wheel. I drove the tractor about 4 miles down the road to help a friend (top gear about 20 mph) and when I stopped the light came on. The tractor is running fine and the shuttle shifter and power steering all work fine. I brought the tractor back on a flatbed and let it cool down and the light still comes on. I have had a few flashing codes in the past but none that did not go away when the tractor was restarted. I do not remember what the codes were but I think it was either 37 or 47. Any suggestions on what I should be looking for? I have checked around for loose connections and I have not found any. Prior to this my 4 wheel drive indicator light came on and will not go off. The 4 wd works fine and I feel it disengage but the light stays on. From my searches is looks like the sensor is bad but I have not had the time to replace it yet. I do not know that it is at alll related to the other indicator light issue. The tractor has about 350 hours on it.