worked on rear passager window,& unplug it the air bag plug,now light is on! (Fixed)

[bosanci28]

hi,,
i have the 2001 bmw x5 4.4 and my rear passenger window it went bad going up and down,,so i have decided to open the panel to see what was going on inside,,and after i took panel down,,i have notice for some reason the airbag plug was out,now from shaking the panel maybe that's where the plugcome out?!,because i did not unplug that plug,,
now i have the airbag light at the dash!,,
what should i do so the light goes away?
do i need to reset the airbag with carsoft ,,
and can someone tell me where is the location of the battery?!

thank you very much for any advice!!!