Supplemental restraint system data flow chart for smart fortwo 451 showing sensor, control module, and airbag connections.

Wiring diagram of airbag system components and CAN bus connections for smart fortwo model 451.

View full-size image ↗

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.