Do you have a voltmeter you can use to verify the motor is getting power? If you have automatic climate control there is a "power module" which regulates the current to the motor - or a resistor pack in case of manual climate control. Current needs to flow through these to get to the fan motor. I don't think these or the motors fail often but a loose or corroded connection any where in the pathway will stop your motor. My car is much older (1995) and has had the fan quit a couple of times due to corroded connector contacts.