so u did this?
"Start by inspecting the wire for any physical breaks. Easy ones to find are external rips/cuts/tears in the outer rubber insulation. Tough ones to find are the internal breaks. For the internally broken wire, you will have to squeeze/bend around with your fingers on the wire to find where it is severed inside. It will be a pretty obvious flat spot on the wire if it was smashed by something (upside down sway bar =P). The third possibility will be a wire that is broken at the connector plug or the solder joints on the actual sensor."
u hook up a multimeter to the sensors to see if you getting right the ohms sir, well actually K Ohms but we
this is why i hate stealerships....they dont know !Removed!. its possible but not likely a stereo place crimped a wire that activated this BUT IF a stereo shop had done this....wouldn't it have been on from BEFORE you bought the car till present not when you get home it turns on? u need to talk to the dealer you got from and im serious when i say this....if they wont fix it, hire a attorney and stick it to them or return them the car. dont forget u need to do something before your "Warranty" expires