On Fri, 27 Nov 2009 14:15:47 -0700, Jim Thompson
wrote:

I've got 2001 pick-em-up truck (Frontier) on which a door lock has
failed... can lock/unlock with the key, lock from the interior, but
not unlock.

I remember such a thing happening years ago on another vehicle... $4
part, $50 labor :-(

I can't figure out how you remove the interior door panel to get at
stuff :-(

Anyone with such experience?

Yes. But not on a Frontier. Try:

http://www.nissanhelp.com/diy/fronti...roce dure.htm

Jon