[Nanook]

It sounds like you have a short or earth fault due to the rain.

My first recommendation would be to take the door panel off and dry out the inside of the door.

I'd be very surprised if this kind of fault would bring up an error code.

Also, if you have a look at the bottom of the B pillar inside the cabin, there is a small panel which give you access to the door wiring connector (you disconnect this to remove your doors). Pop that open, have a look at the connector and see if it's got water in it.