Transmission control data flow chart for Smart Fortwo 451 automated manual transmission system with CAN bus architecture.

Schematic diagram showing transmission control modules, sensors, and CAN bus connections for fortwo model 451.

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See all Powertrain 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.