Vx220/Speedster airbag

Hi, I had an accident on my speedster a couple of months ago, and the airbag activated. Yesterday i changed the airbag, its module, and the seatbelts, the car started perfectly, but the abs and airbag signals didnt fainted does anybody know how to fix this? Shall I have to reset the abs Ecu, if so how do i do this?
Thanks