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Smart Fortwo (A450, C450) (2002- 2007) Fuse Box Diagram

avatar Jonathan Yarden Jan 07, 2021 · 5 min. read

In this article you will find a description of fuses and relays Smart, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2002, 2003, 2004, 2005, 2006, 2007

Fuse box  – location

Smart Fortwo - fuse box diagram - location

N – Fuse Box
A – Relay

Fuse box

Smart Fortwo - fuse box diagram

No. Fused function A
1 Starter 25
2 Windshield wiper, washer pump 20
3 Heater blower
Heated seats, only with heated seats
4 Left/right power window 30
5 Low beam, high beam, front fog lamp, taillamp, backup lamp 7,5
6 Right standing lamp/taillamp, license plate illumination
Right side-marker lamp, only for Canada
7 Left standing lamp/taillamp, parking lamp
Left side-marker lamp, only for Canada
8 Engine main relay, circuit 87/3 20
9 Engine main relay, circuit 87/2 10
10 Engine main relay, circuit 87/1 15
11 Instrument cluster, safety console, data link connector Horn, only with leather sport steering wheel with steering wheel rocker switch system 7,5
12 Radio CD, interior lamp 15
13 Front fog lamp 15
14 ESP control unit 25
15 Charge air fan motor
Air conditioning compressor, only with air conditioning system Plus
16 Electric fuel pump 10
17 Rear window wiper (fortwo coupe) 15
18 ESP control unit, restraint systems control unit 7,5
19 Outside mirror adjustment, only with electrically adjustable and heated outside mirrors 7,5
20 Radio, instrument cluster, tachometer, data link connector, backup lamp CD changer 15
21 Interior socket
Cigarette lighter, only with smoking set
22 Right low beam 7,5
23 Left low beam 7,5
24 Right high beam 7,5
25 Left high beam, high beam indicator lamp 7,5
26 Stop lamps 15
27 MEG engine electronics control unit, EDG engine control unit 7,5
28 Rear window heater (fortwo coupe), cooling fan motor 30
29 Soft top (fortwo cabrio)
Electric glass sliding roof (as of model year 2005)
30 Electronic selector lever module control unit 40
31 Horn, central locking, remote trunk lid release 30
R1 Electric glass sliding roof (up to model year 2004) 15
R2 Multifunction control unit, only for Canada 5
R3 vacant
R4 vacant
R5 Multifunction control unit, only for Canada 15
R6 vacant
R7 vacant
R8 Soft top (fortwo cabrio) 25
R9 Heated seats 25

Fuse box (rear)

Smart Fortwo - fuse box diagram - rear

No. Fused function A
32 Secondary air injection pump (emission control) 30
33 Ignition switch 50
34 ESP control unit (N47-5) 50
35 Steering assist control unit (N68) 30



Smart Fortwo - fuse box diagram - relay

No. Relay
A Fog lamp relay
B Left heated seat control unit
C Right heated seat control unit

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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