One Power Door Lock Switch Unlocks But Does Not Lock (Other Switch Operates Normally)

Backprobe ohmmeter between suspect power door lock switch connector terminal "D" (Orange/Black wire) and ground. While observing ohmmeter, move suspect power door lock switch to lock. If continuity is present, repair open circuit in Orange/Black wire. If continuity is not present, check for poor connection at suspect door lock switch. If connection is okay, replace power door lock switch.