Supplemental restraint system data flow chart for Smart Fortwo 451 with CAN bus architecture and airbag control components.

Schematic diagram showing airbag system components, sensors, and CAN bus wiring connections.

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See all Electrical figures for the Fortwo (451), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.