My airbag light stays on all the time and after driving for a few miles, my check control light comes on and displays "brake light circuitry - check owners manual". I've stopped to check out if I have brake lights and I do so I think it's just a sensor.
last I checked, mine does!
John Huntzberry (located up in Prince Frederick, right behind Ken-Mar liquors) is very experienced with Foreign luxury makes. He was the only mechanic I'd take my car to when I lived in Calvert.