Smart Forfour W454 (2004-2007) – fuse and relay box

Diagrams of fuse boxes and relays – Smart Forfour W454

Applies to vehicles manufactured in the years:

2004, 2005, 2006, 2007.

The cigarette lighter (s) on the Smart Forfour is fuse number 16 in the instrument panel fuse box.

Location of the fuse box

The fuse box is located under the dashboard (on the left side).

Smart Forfour W454 (2004-2007) - fuse and relay box

Number Description Amperes [A]
1 Indoor lighting;
Top control panel;
Left SAM control unit;
Rain sensor / light sensor;
Instrument cluster;
Combination switch.
Central gate control unit.
10
2 Left SAM / ETACS control unit 10
3 Left standing lamp and tail lamp 7.5
4 Right parking light and rear light 7.5
5 Front wiper 20
6 Control unit 7.5
7 Exterior mirror heaters 7.5
8 Right high beam 10
9 Left high beam 10
10 Horn 10
11 Fuel pump 15
12 Gasoline:
Engine electronics control unit;Engine relay;Throttle relay.
20
13 Trailer hitch socket (13-pin) circuit 30 15
14 Glass sliding roof 20
15 Rear window wiper motor 15
16 Lighter 15
17 Rear fog light 7.5
18 Outside mirror adjustment 7.5
19 Diesel:
EDG control unit
15
20 Diesel:
EDGl control unit
Fuel pump relay 2l
Engine relay,
7.5
21 Right low beam 10
22 Left low beam, headlight range adjustment 10
23 Front fog lamp 10/15
24 Diagnostic socket, central locking (2004) 15
25 Trailer hitch socket (13-pin) circuit 15 15
26 Turn on the traffic lights 15
27 Audio / Subwoofer 15
28 Anti-theft alarm system 10
29 Manual gearbox 20
30 Diagnostic socket, central locking (2005-2006) 15
31 Brake lights;
Stop lamp switch (4-pin).
15
32 Air conditioning control unit, 12 volts 7.5
33 ESP control unit;

Steering assist control unit;

Safety systems control unit (airbag).

7.5
34 Gasoline:
Ignition coils
10
35 EDG control unit;
Fuel pump relay 1.
7.5
36 Reversing lamps 7.5
37 Rear window heating 30
38 Seat heating 30
39 Diesel:
EDG control unit
30
40 Heater blower 40
41 Ignition / starter switch 40
42 Power windows
Pump for headlight cleaning system
40
43 Engine coolant fan motor 40
44 Electronic gear lever module control unit (with gearbox 717.474, 717.475) 40
Relays
A Electric window relay
B Horn relay
C. Fuel pump relay 2
D Rear fog lamp relay
E. Starter relay
F. Gasoline / diesel engine relay
G. Pre-excitation alternator
H. Fan stage 1 relay
I Fog lamp relay
J. Heater relay
K. Fuel pump relay 1
L. Transmission relay
M. Trailer hitch bridge
N Free (backup relay)
O Fan stage 2 relay
P. Headlight cleaning system relay
Q Rear window defroster relay
R Heated Seat bridge
S. Dipped beam relay
T. High beam headlamp relay
U Throttle relay (only with engine 134.910, 135.930 / 950)
READ:  Smart Fortwo (A450, C450) (2002-2007) - fuse and relay box

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