Central locking CAN communication diagram showing door locks, SAM module, and transmitter key signals for Smart fortwo 451.3.

Wiring schematic of central locking system with CAN bus connections and component callouts.

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See all Electrical figures for the Fortwo (450), 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.