Cusser
+1y
Not so simple, as I'm not sure what you mean. Do you mean when you use the key from the outside, or when you push down on the door lock button? If from they key/lock, do you feel anything moving when you turn the key towards the rear of the truck? You may end up having to pull the door panel off to take a look-see.
By the way, my door key tumblers wore to where almost anything, like even a paper clip, would unlock the doors, so I ordered a replacemnt pair from RockAuto.