I'm not sure what that exact code means, but from the description of the fault, you have a bad wheel speed sensor, or a bad DSC control unit. Unfortunately, the DSC control unit is the culprit most of the time, and a new speed sensor won't fix it. BUT, you can swap sensors side to side (Left to right) to see if the fault goes to the other wheel. If it does, the sensor is bad.
From what the dealer said, it sounds like they are talking about intake and exhaust CAM sensors, which shouldn't have anything to do with the ABS or DSC.