Why the remote button on the bob wont unlock the door. I have changed the batt. on 2004 Honda Element

Door will unlock with the key and the other 2 doors will open with the unlock button on the inside of the driver door

Asked by for the 2004 Honda Element
Failed door lock actuator , most likely. Common. If you unlock drivers door with key , then hit unlock on remote twice , holding about 2 seconds the second time , do all the other doors unlock?