After reading this thread, I contacted Winnebago because the entry door has never (6 years) worked with the electric locks. Winnebago verified that the door SHOULD work with the electric locks. They said all Winnebagos/Itascas have that installed.
I took an analog multimeter outside and put the probes on the contacts on the door frame and had DW alternately lock and unlock the electric locks. The needle didn't move.
I took the two screws out that held the contacts on the door frame and pulled it off. The contacts were NOT PLUGGED INTO THE MH WIRING! I used a flashlight to look into the hole and saw the two wires that SHOULD have been on the contact plate. I used some needle nose pliers to pull the connectors out and plugged them onto the back of the contacts, and screwed it back in place.
VOILA! THE ENTRY DOOR NOW WORKS WITH THE ELECTRIC LOCKS! If I had known it was that easy to fix, I would have fixed it 6 years ago!