My passenger door unlock with button but want unlock with it?

My passenger door will unlock when i press the unlock power button, but will not lock with it. Today my key will not turn driver side door lock at all. Key works properly in the other locks.
how do i troubleshoot this problem? ( 1999 ford explorer )

Lock rod is off on the door that the key doesn't move the lock at all.

If the lock moves with the other switch & not the one, its a bad switch on the door where it won't unlock with the power lock button