To test your radiator fan, follow these steps:
1. Start your car and let it idle for a few minutes.
2. Open the hood and feel the air coming from the radiator fan.
3. If you feel no air or minimal airflow, the radiator fan may not be working.
4. Another way to test is to turn on your AC on max with the car running/idling.
5. The radiator fan should start up soon after. If it doesn't, there may be an issue.
Remember, it's always best to consult a professional if you're uncertain or need further assistance.