I have a 2001 v6 Jeep Grand cherokee and the radiator fan does not come on. I have read that it may be the relay. If this a job I can do or should I take it to a garage? How much should I pay to get this repaired?

The relays and fuses are located under the hood on your vehicle, there is 2 boxs, and they both have covers, snap the covers off, and you will be able to see fuses and relays, inside of the covers shows a diagram of what they are and where they are located, and yes , if it is the fan relay, you can replace it yourself, just pull the relay out and put the new one in.