Nice looking ride. We have the same taste. Mine is the same color combo/ I really like the way the side ducts look. Instead of being all black.
Anyway. You may find this thread helpful. The Durametric tool does not give any codes for it. But still a great tool to have. I highly recommend it. As far as the door lock light. The Duramtric tool will just indicate alarm failure. You'll have to take that problem to someone with the a Genuine Porsche diagnostic tool. Like the dealer or a local indy shop. Good luck with your problems.
Randy
http://forums.pelicanparts.com/boxster-cayman-forum/598662-hot-start-problem-99-boxster.html