front control module

OMG!!!! Can this week get any worse? I need some big time help! Tuesday while driving our 2007 Super Bee the gauges started flickering and airbag warning sensors were going off and suddenly the gauges were gone! The car drove fine, no problems with that. None of the gauges worked, none of the...

I have a 2007 Charger with a 5.7(former police care) that needs a new Front Control Module. If I buy a FCM from an auto salvage yard, will it need to be reprogrammed or will it work because it has already been programmed? Thanks!!!