My 2002 Civic has a water problem on the passenger side floor. I know it is coming form the A/C as it only happens when the A/C is on. Doing research it appears that the A/C drain hose is clogged. The fix is to blow some up the hose or use a wire to clear the clog. But, I can't find the drain hose. Can anyone help? I need to know where the hose is.

 

http://www.hondaautomotiveparts.com/auto/jsp/mws/prddisplay.jsp?inputstate=5&catcgry1=Civic&catcgry 2=2002&catcgry3=2DR EX&catcgry4=KA5MT&catcgry5=HEATER UNIT

#22 on the drawing

 

If you get under the car and look at the bottom of the firewall, you will see the drain hose coming out through the firewall and down passenger side. Thats how it works for an Accord, so it's worth a try.