Hello Everyone. I'm a newbie (fng) here on the forum. I just bought my 99 Sierra 1500 last week and have discovered among other things, a problem with the DRL's. When I start the truck it seems my low beams are on,along with the tail lights. At night when I switch on the headlights, nothing changes. and it makes no difference what position I have the switch in, on or off. Even turning the lights off at night As long as the truck is running, all lights are working. I do have the sensor sticking up thru the dash not covered by anything. I looked for a cure on here, but no luck other than most people just pull the fuse? Any help is appreciated.