My right side blinker works and then stops blinking and goes to a solid light.

Hello, Replace the turn signal flasher. It will not cost much to have a professional do the job, and that cost is likely worth the confusion of finding the flasher and getting the proper part number send to you. If you have other questions, or need more information, let me know, otherwise, here is a list of certified shops in your area with the training to repair your vehicle: http://repairpal.com/cadillac-within-10-miles-of-jacksonville-florida-32218