Hey guys. Well I'm having problems with my radiator fan. I can't get it to come on. I had to semi-bypass the relay and hook the fan up to my battery. It comes on when it gets hot and what not, but if I don't have it hooked up to my battery, it will not come on. Is there an inline fuse hidden some where? I did a test on my relay, and everything is working properly. I bought a new TSU, and a relay, and I made sure my fan swith is hooked up. So. Is there an inline fuse hidden somewhere?

 

the fan doesnt have an inline fuse. the relay gets constant power from the battery and when the fan switch (or ecm in some cars) gets hot enough, it grounds out and trips the relay into turning the fan on.

to properly give you direction we need more info, like what year, engine, number of fans.