I got my 03 Disco last week, totally happy, got it home and locked the truck with the key fob and I think shorted out the drivers side front and back doors. I can still manually lock and unlock each door. I wanted to know what the quickest fix would be for me to try first and then what I should do if that does not work. Thank you for any assistance.

As a side, if the cooling system is running fine, should I put in waterwetter or purple ice anyway? The group I bought the truck from kinda told me not to mess with stuff if everything is running great.