Power Windows dont work

Everybody, Ill go ahead and do what you suggested here. Will report back tomorrow sometime. Many thanks.

From what I'm reading now,
1. Make sure there isn't a wire hiding behind the battery now, that you removed to clean and missed on re-assembly.
2. Do the "wiggle test" on the remaining wiring connected to the battery. Vibration and Corrosion can cause the connection to fail. Even though the wire is still in the connector.

Some cars and trucks and vans have a switch that is a "Child proof" power window dis-connector. SO, young kids can't open the windows when parents are driving down the road. Wonder if the RV has that? IF it's "on", the power window will not operate.

I don't want you to take this wrong, but did you reconnect all of the wires after cleaning the terminals? If it was working before disconnecting and now it is not I would think that I forgot something. You can have continuity on a component and not have voltage. Some vehicles have a separate smaller lead for accessories with the large red cable going to the starter solenoid. The smaller lead sometime has a fusible link in it. JMT

Have you looked on the engine compartment firewall for a relay or fuse box? Do you have a manual for the chassis?

The CB is a small aluminum colored metal thing measuring approx. 1.5 " l x .5" w and stands about 1" h. Its in the fuse box that's under my Drivers seat. I pulled it out and its got continuity across its 2 terminals.

My Driverside Power window used to recess upon a momentary touch of the push button. Neither power window works now ...and it was after I took the Battery terminals off to clean them in the engine.

OP,

Please provide a link or clicky to where this story begins. I feel like I missed the first 30 mins of a movie.

If the pictured relay is part of the vehicle, it probably works with another one like it to electrically reverse the permanent magnet (two-wire) window motors. Imagine putting two wires onto battery terminals. Motor runs one way. Switch the wires. Motor runs the other way. It takes two relays to accomplish that and both have to be good for the motor to run.

Some of the newer power window controls have a "smart" control board built under the front LH window switch panel. I say this because it may not be just a matter of switches that directly control the current to a window motor.

For example, if you have an "UP" or "DOWN" window action that only requires a momentary touch of the Up/Down switch then it is for sure a "smart" control board. I have seen where allowing rain water to come in an open window and migrate into this control panel can render the smarts to be "unserviceable".

Would "circuit breaker plug in module" be a relay? Does it look like this:

Most vehicles do not have power to the windows unless the ignition is on or in the ACC position.