High-voltage interlock topology diagram showing electrical connections between battery, charger, motor, and safety components on Smart Fortwo 451.

Wiring diagram of high-voltage interlock system with colored lines indicating HV, LV, and HVIL circuits.

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See all EV-specific 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.