What about trying crank the engine & turn on ac blower to high. Does the fan come on then? If not I would take a 12 volt test light & check the fuses under the hood & drivers side inst. Panel. If fuses are good check for voltage at radiator fans W/key on & ac on. Koeo = key on engine off. If there is 11-12 volts to fan motor & it's grounded properly. &Amp; not coming on you can pretty much replace the fan motor.