Check with you guys...does both radiator fans turn on all the time?
or at certain temp then both are activated?
radiator fan
Nope. Radiator fan only turns on once your car reaches a certain temp and needs to cool down. Your thermostat determines the temp. Unless you are running without a thermostat then radiator fan is on always.
With good knowledge of theory is fine, but put it in practical. Cos with good theory and no practical experience, all theory is bull shit!