I recently purchased a 1987 civic, yes from a little old lady original owner,!! My problem is the engine cooloig fans donot cone onwhen the engine begins to warm up to where they should come on. I can not find the power supply to them, they both work when jumpered. My wireing diagram doesnot show where they get power from. The fuse under the dash is nit blown, but where it goes from there is the mistry?????????? I don,t know if it has relays or what??? Any help will be greatly appreciated, Dwight 

I'm fairly certain there is a relay in the system.....most likley with a temp switch (where that stuff is, i dont know). A good thing to do is see if you can find chilton repair manual.

I have one for a 96 i'll scan a page and post it.

This is what a 98 looks like:

I hope this helps.