Diagnostic Concept: Bus

Bus configuration can be read and reset as before. An addition is that, besides "Missing" and "OK", "Added" is also shown if a unit has been fitted without resetting the bus list. Furthermore, "Not fitted" is shown for control modules that are not mounted and should not be mounted in the car. The bus list is divided into four pages, two for the I-bus, one for the P-bus and one for the O-bus.

With an "Add/Remove" of a control module updating of the list takes place automatically. In connection with the trouble code reading a check is made on the buses in accordance with the previous concept. Further tools have been introduced for fault diagnosis of the buses. A fault counter in each control module can be read and reset using the diagnostic tool. The counter's value increases with short term breaks to the control module in question.