Thanksto the diversity of the practical information and the real measured values forthe intact and defective vehicle, the present teaching system makes a decisive contributionto the introduction of theory and practical service. This succeeds in bridgingthe gap from pure theory to the complexity of modern vehicles. Measuring itselfis not missed out. Proper evaluation of signals and oscilloscope images allowsfor the accurate determination of fault causes. In state-of-the-art vehiclesystems, on- board-diagnosis is a standard. Workshop practice shows, however,that any input interferences recognized by the control unit are only formulatedin very vague detail in the error storage. So make your trainees to realdiagnostic professionals. With the Automotive Sensor Trainer, AutomotiveActuator trainer and Automotive Oscilloscope trainer in one package, thehelpless replacing of components belongs to the past. Systematic measuring andthe correct interpretation of the measured values are gradually conveyed in extensiveeducational documents.