1997 Honda Civic Q&A
1997 Honda Civic Question: driver side door won't lock
driver side door won't lock, at all - Visitor
If this is a power door lock, the door lock motor likely needs to be replaced to get the door to lock. If not, could be a linkage issue inside the door. - DaveJHM
Worn door locks (tumblers) can cause the lock not to work. Removing the lock and replacing the worn parts (tumblers) is needed to get the lock working again.
electric locking mechanism still works, door is unlocked.