From the manuels I've checked for a 93 Si, the horn relay is supposed to be in the interior fuse pannel, lucky me I pulle the fuse pannel diagram and it dosen't show which one it is... Anyone that can point me to a diagram on-line to where it supposed to be would be greatly appreciated. I searched the forum and haven't found what I am looking for yet. Thanks

 

You may want to get a haynes manual. they have pretty in depth wiring diagrams that can help you out. the only other way i can think of is to get a manual from the honda dealer. i have tried to get stuff online and have had no luck.

 

I've got a haynes manual here at the house, I'll take a peak at the diagrams in abit. I've already been to honda, I'm good friends with the guy at the parts counter, and with all the diagrams he pulled up, he couldn't tell me which one it was either he said they used alot of differnt relays in that year go figure. If nothing else I'll bug a friend who has a working horn on friday