for some reason my rad fan decides to not work randomly and my car starts to overheat =\ , i checked the connections they seem to be fine , what else could cause it?

 

the relay, the fuse, the temp switch..

remove the connector from the temp switch at the thermostat housing..
put a paper clip in there, and turn the ignition key on..
does the fan come on?

 

Hey , sorry for bringing up an old post..
i have the same problem AEM EMS says Rad Fan is on and it wont come on
i put a paper clip like you said and the fan came on...
what does it mean and what can i check?

TIA