remote entry problem
 

I recently had transmition updates installed on my 2002 mpv and had a coil and plug replaced do to hesitation and sputtering. After I picked up the van at the dealer I noticed that the remote door opener was messed up. The door opens and locks but the lights do not flash anymore. This is the same for both remotes. The dealer has spent hours trying to find the problem. Has anybody else had this problem?