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Home >> BMW >> 2004 >> 645Ci 2D Convertible, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instruments - Si Techniques >> Instrument Cluster E60, E61, E63, E64 >> Brief description of components >> Safety And Gateway Module

Safety And Gateway Module

The appropriate indicator and warning light is activated to indicate a fault in the passive safety system (airbag).

The SGM is the gateway between the byteflight  , PT-CAN and K-CAN data buses  . The diagnosis lead is also connected at the SGM.