A control unit digitises the course over time, height and frequency of the sensor voltages to further process these actual values in the micro controller. This subject summary takes into consideration the fact that all electronic vehicles systems record the actual value of apartial system under consideration with sensors. Sensors convert non-electricalphysical values like positions of actuators, temperatures, pressure,brightness, etc. to electrical voltage that is decrypted by a control device.
This is where the service workshop comes in, where the sensor-side is diagnosed bymeasuring technology. The present lab system provides real measured values forthe intact and defective system by the diversity of practice-related sensors. In state-of-the-art vehicle systems,onboard-diagnosis is a standard. The reason for this is the fact that acontrol unit cannot actually recognise whether the sensor, its connection lines to the control unit or digitalisation in the control unit are defective. Workshop practice shows, however, that anyinput interferences recognised by the control unit are only formulated in veryvague detail in the error storage.
