I want to clean out the ac drain line on my 13 accord and can't find the darn thing. I'm use to seeing the little black tube coming out at the lower part of the firewall around the passenger side. I spent an hour looking for it today and I can't find it. Unfortunately, it is too cold right now for me to turn the AC on and generate any drip, which would certainly help me find it.

Anyone know where it can be found on the 2013 v6 accord?

 

Found it, and I suspect the location will be the same for other engines. There isn't a tube like many of us may be use to. From the bottom of the vehicle, if you look below the passenger seat, you will see a large plastic shield which spans the size of the passenger seat. In this shield, a slit/hole exists and water drains from there.