Normal to always see some voltage on Elec Brake pole of 7way

As others have said, you are reading what is refereed to as pull up voltage. It allows the controller "or any ecm" to see a load attached.

And as others have said the test is meaningless without the load attached, the load can be the brake coils or a high wattage bulb or similar load.

I read but didn't actually see a problem you described, do the brakes just not work effectively? If not have you just tried connecting the brakes to a 12 volt power source and see if they lock?