Airbag light on

When i have a passenger in my escape i get an airbag light on the dash i finally was able to get the code number B2438 B2438 52 Passenger Safety Belt Buckle Switch Circuit Short to Ground i am just not sure if it is the actual seat-belt or the pre-tensioner that it plugs into i will be trying to troubleshoot to the best of my ability but thought maybe there was a ford tech or mechanic that might be a little more insightful than my local dealer

well i fixed the problem... it seemed to be a wire rubbing on the pre-tensioner mounting bracket that wore through and shorted it out i gues some times you have to figure things out on your own