Contour Enthusiasts Group Archives Forums General Troubleshooting Why does my Airbag light flash sometimes??????

It does this:
it will flash a series of times..(At about half second intervals)..
PAUSE
flash another series of times (again, at half second intervals...)

Does that mean the crash sensor is not mounted correctly? Could it have shift in hard cornering? Because it didn't do this for the last 48,000 miles.
thanks guys