SRS Warning light

I have just changed my seats in my freelander and used my original seat belt pre-tensioners and now the SRS warning light goes out but comes back on, and stays on.
I had not disconnected the battery when changing these over and wondered if I have created a problem or is there a way of resetting this.
Many thanks to all.

I read a similar thread here recently it turned out to be disconnected wiring to pre tensioners.Use the search forum on the main freelander page top right