Airbag Info

I have a 1995 XJ with drivers side airbag in the steering wheel. I cant seem to locate any controller for the airbag. any ideas what im looking for?
I have found a little pink colourd box under the dash that has what appears to be a pezio in it. (no not the one with the exhaust temperature sensor)
Or are the airbags self contained?

Regards
Andrew

95 and 96 airbags are self contained. There are no electronics for them.

Sweet, thanks for confirming that.
I have had 2 instances where the vehicle testing guys have given me a bit of greif. The first was going to knock the warrant of fitness back because the SRS airbag test light was not showing on the dash. the second was trying to knock it back because the ABS light was not showing up when the ignitian was turned on. i thought the latter was funny considering I dont have ABS.