Remove the door panel & look into the door frame. Check to see if the metal wire rod that
connects to the door handle/latch area is still attached to the door lock. If not, then reattach
it. Provided the little plastic retaining clip which holds the metal wire to the handle/latch
isn't broken, then you should be able to repair it. If the plastic retaining clip is broken,
then you might have to take a trip to the stealership & see if you can get the part. If not,
then a auto salvage yard might do.
Anyhow, hope this helps..
ID