Tumbler door locks work with the key being put in the lock and tumbler turning. This is one of the most common types of door locks.
How do door locks work?
power door locks don't work on my 1997 Honda crv
what about them? yeah for real, my door locks work pretty well.
ANYTHING could happen to make it not work.
yale u.s.a
http://www.peachparts.com/shopforum/diesel-discussion/215532-vacuum-door-locks-not-working-1983-300d.html
Locksmith or replace locks
If a locksmith has failed to open a door then, Wedge the door glass to door shell open in order to trip the latch with a long metal rod. This requires Patience and some time to get it right.
Is the remote's battery dead?
The automatic door locks on a Dodge Intrepid won't work if the fuse or switch are bad. These two components should be checked first to narrow down the cause.
my discovery 3 rear door lock will not lock with remote
you might have the child safety locks activated