There is what I will call a BUSS Bar located below the Battery Disconnect relay.
It is a divided bar. The right end has 4 connections:
1)upper left -- connects to Battery Disconnect Relay -- no power
2)upper right -- empty -- no power
3)lower left -- to wire loom -- batteries -- 12 volts
4)lower right -- to wire loom -- batteries -- 12 volts
I jumpered from lower right to upper left and got 12 volts(power)to the Battery Disconnect Relay. I turned the Battery Disconnect Switch (by the entrance door)on and the house lights worked.
I took the jumper off and the Battery Disconnect Relay still has power.
I tried the Battery Disconnect Switch several times and it is still working (the green light is on with the switch in the on position).
The House Lights and the Slides now work.
The steps still do not work but that is probably another problem.
THANK YOU TO EVERYONE FOR ALL HELP & SUGGESTIONS.
A first time RV owner.