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Figures › Fortwo (450) › Electrical › Radio wiring diagram (part 1 of 3) showing ground points

Radio wiring diagram (part 1 of 3) showing ground points, connectors, and circuit connections for smart fortwo 450/451/452/454 chassis.

Radio wiring schematic with labeled grounds, USB connector, door separation points, antenna connector, and CAN bus circuit.

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Chassis
Fortwo (450)
System
Electrical · ECU / sensors
Figure type
Wiring diagram
Source
2007-2014 smart (450 451 452 454) - Workshop Repair Manual, page 1204 Open manual →

Parts referenced

  • W10 — Ground (battery) 33E
  • W12 — Ground (center console) 19E
  • W14 — Left floor interior compartment ground 32E
  • W7 — Ground (right wheelhouse in luggage compartment) 8G
  • X115 — USB connection connector 42L
  • X35/1 — Left door separation point 26E
  • X35/2 — Right door separation point 24E
  • X39/45 — External audio source separation point 44L
  • Z28/18 — Sound system antenna actuation connector sleeve 22F
  • Z3/44 — Instrument cluster - radio circuit 15 (fused) connector sleeve 17F
  • Z37/42 — CAN bus (low) connector sleeve 4H
  • Z81 — Circuit 58d connector sleeve 15F
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← Interior illumination wiring diagram sheet 2 of 2, MODELRadio wiring diagram part 2 of 3, showing speaker →

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.

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