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Figures › Fortwo (451) › Electrical › Complete networking block diagram showing CAN bus, LIN bus

Complete networking block diagram showing CAN bus, LIN bus interconnections, and control units for 451 chassis.

Electrical system network diagram with multiple control modules connected via CAN and LIN buses.

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Chassis
Fortwo (451)
System
Electrical · Fuses & relays
Figure type
Wiring diagram
Source
Fortwo 451 Service Manual, page 27 Open manual →

Parts referenced

  • N3/10 — Engine control unit
  • N23 — Heater/AC operating unit
  • X11/4 — Data link connector
  • N2/7 — Transmission control unit
  • N68 — Power steering control unit
  • N47-5 — ESP control unit
  • N15/6 — Automated manual transmission control unit
  • A1 — Comfort module
  • N49 — Steering angle sensor
  • B24/15 — Gateway module
  • N10/10 — LIN interface module
  • N88 — TPM/RDR control unit
  • B32 — LIN interface module
  • H3/2 — LIN interface module
  • B38 — LIN interface module
  • A15p4 — LIN interface module
  • N110 — Weight Sensing System control unit
  • N57/2 — Power window convenience module
  • N25/5 — Seat heater control unit
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wiring diagramecusam moduleschematic

← Smart Fortwo 451 complete electrical system componentSmart Fortwo 451 wiring harness groups layout showing main →

See all Electrical 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.

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