1. Turn off the engine and allow it to cool down completely. This is important to avoid burns and damage to the fan motor.
2. Locate the radiator fan motor. It is usually located behind the radiator, but its location may vary depending on the vehicle make and model.
3. Disconnect the electrical connector from the fan motor. Be careful not to damage the connector.
4. Use a multimeter to test the fan motor for continuity. Set the multimeter to the ohms setting and connect the probes to the two terminals on the fan motor. If the multimeter reads zero ohms, the fan motor is good. If the multimeter reads infinity, the fan motor is bad and needs to be replaced.
5. Check the fan motor for any signs of damage, such as loose wires, damaged blades, or a burned-out motor. If you find any damage, replace the fan motor.
6. Reattach the electrical connector to the fan motor and turn on the engine. The fan should start running. If it does not, check the electrical connections again or replace the fan motor.
