Not sure what to look for. Outside button does nothing, was stuck but came out. Inside does nothing, even when it should open if locked. The door lock knob to show if locked or not isn't going up and down all the way. Got electric locks. Need to get door opened to take panel off but can't do it obviously. I tried pulling up on the knob but just broke off the plastic part. Haven't worked too much on the locking mechanism on the truck. Any ideas?