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.
Removing the back plastic panel ( the North Ameircan models have plastic panels) - was pretty easy. 4 pieces to remove and you have access to everything.I am also a member of the wet tail light club. I am reluctant (scared) to strip the rear tailgate upholstery. That fourth nut is almost unreachable. If I get it out, there would be little chance of getting it back. Has anyone tried drilling a hole over that part of the lining? This would allow access with a small socket (perhaps) The hole could be covered with an upholstery grommet. Just a thought ?????
This could be a cause, if it is difficult for us to remove the nut, it will be just as painful for Honda to assemble this while the assembly like is moving to the next assembly point, they only get 2-5 minutes per station so finger tight may be good enough for them and we get water in the tail lamps. Just make sure if you see water, get it out ASAP !! it will start to stain the reflectors inside and will look horrible when you finally get the water out.I had the part delivered Saturday and replaced Sunday - took 15 min - and didn't have to take the interior panels off this time.
I used a small 8MM box wrench and was able to get the last bolt.
VERY INTERESTING DISCOVERY:
about a year ago when the passenger side was filled I noticed the 2 black acorn nuts ( accessible with the hatch up )- were loose - so i checked both sides for tightness when done and found drivers and passengers loose - barley finger tight etc. I know i used a wrench to tighten all four at that time.
when doing the replacement yesterday the drivers side was loose - and also the passenger side. They seem to work their way loose, (temp changes and vibration i guess)
Could this be a culprit to the leaks and water getting inside the lenses ? the outside gets a little loose and the gasket gets a little too much play and water seeps by.
Well- I could either use some blue Loctite- or add a customary check of these bolts to my regular maintenance schedule.