When I bought my 2007 Jeep Wrangler Unlimited used, the horn did not work. I checked the fuses, circuit, and horn and they were all fine. Did some research online and found out the clockspring can be the problem. Bought a new clockspring and installed it. Problem solved. Then several months later I get a recall in the mail for the clockspring and it says they will replace it for free or refund you for the repair if was already done....by a dealer.