The bumper of our 1998 C1500 was hit just enough to set off the driver's airbag (passenger side didn't deploy because it was turned off). I replaced the airbag out of another 1998 C1500 and checked out the sensor behind the bumper which appears to not be damaged. With everything back together and engine running, the airbag light stays on. Is there anything I can do to cancel out the light besides replacing the airbag computer under the seat? Or does it have to be reset by the dealer?