Your opening post makes it clear (if I read it correctly): Either the divider switch OR the top open switch is bad.
In THIS thread: convertible top switches (see post five), I make this clear:

This is important - if you have a top that won't go down, try putting it down manually (see post 9). Then, try raising it. If it goes UP but not DOWN, it is reasonable to assume the issue is the top open switch OR the divider switch. And we already know that if there is a problem with EITHER of these two switches, it is almost ALWAYS the divider switch.

THe text leading up to that explains why this is. I know it's a long read, but if you want to fix this yourself, you MUST understand how the system works.