I don't have a wiring diagram for your coach, but all of those items I would think are powered from the chassis battery, thru the ignition switch and ignition-switched-in 12v. Like any automobile, some chassis items are supplied power all the time, and others get power only when the ignition is turned on. There's a relay that the ignition switch turns on.
Since your engine is running, I would suspect that the ignition switch is good (else the engine wouldn't have power to run), therefore I'd initially suspect the relay. Don't know where this is in your case, but I'd look first in the DS first bay under the driver.
DaveB, Raleigh, NC
2015 Tiffin RED 33AA, w/Honda CRV
VMSpc, Magnum BMK/ARC50