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Notes added to function description "Power supply for
on>board electrical system"
i For some time our vehicles/engines have been equipped with f "BSS" alternator linked to the engine control unit per
alternators which communicate with the ME or CDI engine control BSS
via an interface. > BSS = Bit Synchrone Schnittstelle (bit synchronous
This results in changes to the system diagnosis and when testing interface), communication
the alternator: ECU Æ alternator
A distinction is made between the conventional alternator with > Testing possible via engine control unit > Diagnosis
terminal 61 without interface and alternators with BSS interface Assistance System
or LIN interface.
f "LIN" alternator linked to the engine control unit per
f "CONVENTIONAL" alternator not linked to the engine LIN
control unit (MSG) > LIN = Local Interconnect Network, communication
> No form of communication between the alternator and engine control unit ¨Æ Diagnosis Assistance System
engine control u