Diagnosis gateway
The central gateway control unit (N93) routes the data of the control units connected to the Controller Area Network bus class B (interior) (CAN-B) and Controller Area Network bus class C (engine compartment) (CAN-C) to the test instrument connected to the diagnosis CAN (STAR DIAGNOSIS).
Data logger
On vehicles with code (494) USA version
The central gateway control unit (N93) collects the data required for the emergency call system from the control units connected to CAN-B and CAN-C.
On vehicles with code (551) Anti-theft alarm system (ATA):
Triggered anti-theft alarm system alarms (maximum 15) can be read out of the alarm memory of the central gateway control unit (N93).
In addition to this, information such as the position of windows in the event of alarm being triggered is also stored.