our car has the same problem, we went to Honda and they say the condensation has messed up the entire wiring and needs to be changes, about 2k. Not good
Thats what Honda told us, we r past our warranty, but we do have extended warranty - either way Honda told us that the the wiring and fixing of the damage is not covered.THAT seems difficult to believe! (About the wiring being damaged, not the cost to replace.)
I could understand moisture in a taillight corroding electrical contacts, but not the wiring.