Well you see the relay is built to switch a higher current circuit using a smaller current. it is a safety hazard as using just a toggle switch will allow too much current to flow thru the circuit. you should replace the relay. now if after you replace the relay the fans dont work but the fans are good(ran power wire directly to fan for testing purposes) then as a temporary measure you wire a switch to Control thr relay(relay actually handles the fan current). find the fan relay. it should have 5 pins. on the case of the relay there should be a diagram.
the numbering should be the same.
using an ohm meter checkthe relay socket pin86 with red lead, black lead connected to ground. if zero ohms, then that is ground and pin85 of relay socket is +. pin30 should read 12 volts with meter, run wire from here to one side of a toggle switch located near steering wheel so you can access it when you start car. other side of toggle switch runs to pin85.with the small wires into the relay socket still in place, plug in relay. throw toggle switch to on and if everythings connected, fans should come on.
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