I purchased transponder keys thru eBay, and downloaded instructions for programming here on this site. The first one (for my 2000 4Runner) worked great. I then bought a '98 Land Cruiser and purchased two more blank keys from eBay. The first one programmed just fine, but I cannot get the second one working. Is there a limit to how many keys can be made?

 

You should be able to make as many keys as you want, the key that won`t program might just be bad.