I have a S420 '95 in which I decide to change the broken cruise control switch.It was my mistake that I didn't follow the instructions where they said to disconect the battery, so while I was working at it I decided to open the window and I put the key ON while the air bag unit was disconected. And that was it, the SRS light came on and stays since on. I know that everything is ok because before it never light up and the only thing I did to it it was disconecting the airbag.Please I need some help to reset this light.Thanks