I have a 2000 honda odyseey and my passenger side door keeps giving me an alarm or beeping whenever I am driving. The lights on the dash do not show this door as open and the beeping stops when I press the button to close it. Just looking for a little clue on where to start.

Hopefully the doors were updated while under warranty. Check the pin switches between door & frame - clean/lube using dielectric(spelling) grease. Also make sure the bottom track is free of any dirt/debris

I have also had this problem with my 2000 Odyssey and just like jackassi says cleaning the contacts(I used a pencil eraser) and cleaning the tracks up seem to take care of the problem. at least so far...

Pull the interior rear left panel and disconnect that blasted piezo. You can probably get to it by removing the rear left speaker. I just happened to have me interior out when I found it.