Permanent bus faults
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Irrespective of the system being contacted, the diagnostic tool will first check with the aid of the DICE that all systems in the car connected to a bus are awake and in communication.
If any control module connected to a bus is missing, the diagnostic tool will show this. This means that all control modules connected to a bus are communicating correctly unless the diagnostic tool indicates otherwise with a warning.
In the case of a permanent bus fault, the text on the diagnostic tool's display will refer to a fault diagnosis procedure described in the "BUS AND DIAGNOSTICS COMMUNICATION " category.