sup HT, i got a ctr climate control in a 98 civic ex. US rear defrost uses 5 wire green plug, jdm rear defrost uses 5 wire grey plug, plugs are diff. 4/5 wires match up, the us has red wire leftover while jdm has black wire left over. i tried to look up wiring diagram to see whats what but all i can find is links trying to sell jdm climate units or 99/00 CC in 96-98 civic guides

 

USDM service manual:

 

alright that explains a lot, thank you. used volt meter to confirm the jdm black to the left of the red/blk, is US red

 

red to black did the trick,defrost works fine, i did notice that the hazard switch doesn't light up at all though but its fully functional. i did have to extend the wires so the hazard would reach on the passenger side but if i plug my stock hazard switch in it lights up with everything else(cluster,cc,ect), so i think that rules out my wiring, i guess the bulb could have gone bad

 

after about a day the hazard light started working and hasn't not come on since, i dont think this CC has been hooked up in a while. the left light on the cc also came on and hasnt gone off since, just figured ide wrap this up if anyone else is doin this swap and has similar issues

 

replace the bulbs with LEDs.