radiator fan dosent work

It's funny, but when people say there from Beverly Hills they are almost always from outside the U.S. Thanks for checking in from Fiji. The radiator fan is controlled by the engine control module, and when you disconnect the coolant temperature sensor, the module will activate the fan, which it is doing now (normal). This means most of the system is functional, however for some reason the fan is not coming on normally when the engine warms up. This is likely a two speed fan, and it's possible the low speed part is inoperable. Is the engine getting hot and that's how you determined there's a problem? Is your check engine light on and have you checked the codes in the module?