1999 Hyundai Scoupe

Engine Cooling problem
1999 Hyundai Scoupe V8 Two Wheel Drive Manual 80,000 miles

i hav a hyundai coupe 1.6 which is in good condition.
the cooling fan for the engine has stopped working tho.
i hav tested it an it wrks fine. Just doesnt work when the engine is on and needs cooling. Does anyone no what myt be the problem? I thought it myt be something to do with the tempreture sensor but cant find it?Any ideas?
September 9, 2009.

Either the temp sensor, relay, or computer. Chances are it is the sensor or the fan relay.