Proud BA XR6 Owner!
Join Date: Mar 2002
Location: Victoria, Australia
Hey, it sounds like maybe something is blocking the locking mechanism. Take the trim off again, and see if anything is where it shouldn't be. Also, give a look to the lock itself, somtimes they play funny buggers on you.
Example, 43 degree day a while ago, tried to lock it, and it cycled open / close for 1:30. Gotta hate that when ur already late for work?
Anyway, try what i said, failing that, uninstall and re-install the p/w assy. coz somtimes it dont look out of place but it is.
hope that helps.