It will take a professional more or less an hour to an hour and a half to diagnose the U11E9 RAM code - how much time exactly it will take depends on several things, such as your car’s make and model or the type of your engine. How much you will pay for that depends on how much a specific car workshop charges per hour. On average, that would be between $75 and $150. As for fixing, it depends on whether you decide to fix it yourself or if you want a professional to do it for you. For the first option, you need to take into account the cost of the parts that need to be replaced. As for the second, you not only need to consider the parts but also the labor cost. Depending on the workshop you will use, it will cost you about $200 to fix it. This brings the total cost of diagnosing and fixing the U11E9 code to $275 to $350.