A diagnostic tool and method are provided wherein a faulty part and its part number is determined based on a retrieved DTC for a specific vehicle. The measuring device includes a base and a vibration generator. The invention is applicable to manufacturing optical fibers. A third symbol generator generates a third symbol to be inserted immediately before or immediately after the second symbol, the third symbol being different from the first symbol. That signal is then communicated to the patient via a patient signaling device, following which the patient administers to him or herself the prescribed therapeutic treatment indicated by the signal. The broadcast receiving apparatus transmits user information stored in a storage medium to a broadcast station.