Both fans should come on with aircon.
Will tell you if the fans work......
If the fans don't even come on with aircon then the supply of power is either broken or both fans are completely dead.
If the fans do come on with aircon but don't come on with high engine temps then its more likely a sensor.
But then theres the fan control unit, I have no idea what this does. I guess if this is dead the fans won't work either.
None of the fans come on at all...does this sound expensive?
...anyone had this problem before?
i might see if i can junk the standard fans then and mount some spal fans in their place.
should move more air as well.
Did you check fuses?