looking for a key repairer!
Bit of a long shot off the back of my alarm problems thread. I am looking for a chap, does this guy sound familiar to anyone
There is a chance the receiver will have to be re-synchronized with the factory alarm/immobilizer. There's someone on AO that can do all that for you, forgot the chaps name/nick tho. He's also on eBay where he fixes keyfobs iirc.
I believe the procedure is that you mail him the circuit board of your remote receiver and one of your fobs. He'll figure out the codes from those and check/fix them if broken. He'll send them back to you and tell you the procedure to get them talking to each other again.