Turn signal indicator actuation function chart for model 451.3/4 smart fortwo, showing CAN bus architecture between combination switch, SAM control unit, and indicator lamps.

Schematic diagram of turn signal system with numbered components and wiring connections for smart fortwo.

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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.