9-5 (9600) L4-2.3L Turbo (B235) (2001)
PSM sends out the following information:
Principle of Communication
Principle Of Communication
The bus may be regarded as a two-wire telephone line running between the control modules. Communication is continuous once the ignition switched on.
With the ignition switched off, a control module that is operative may if necessary awaken the other control modules. This happens for example when a
door is opened and TWICE, to which the door switches are connected, awakens the others so that DICE will be able to switch on the interior lighting.
When one of the control module microprocessors "speaks" the other control modules listen regardless of whether or not the information is of interest to