This happened the other day i went to crank my tractor turned the ignition switch backwards to energize the glow plugs the light did not come on my fuel gauge went to full. I had a friend come over and we checked most of the switch's they all appear to be OK including the ignition switch, battery had 12.6 volts He thinks the safety control modual mounted on the firewall under the hood may have gone bad. I was wondering if this is a common problem. I checked with our local dealer he said this modual is about 245.00. Thats a lot of money any info would be appreciated. Thanks 