Hey guys..I have a 1993 Lexus sc400, and just the other day , as I was going to my car, I pressed the unlock button switch on my remote, to unlock the doors. Well, the doors did not unlock..So I decited to buy a new battery for my stock remote key..Still does not work? Do I check the fuse, or relay or what..I'm not sure what to do. I knwo if I do take it to the dealership, they would charge me a handfull? So, if any information will help...Thanks.