Smart Forfour (W454; 2004 - 2006) Fuse Box Diagram

Jonathan Yarden
Jonathan Yarden
Expert Verified: The content on this page has been reviewed and verified by our team of experts.
Year of production: 2004, 2005, 2006

Fuse box

Smart Forfour - fuse box diagram

No. Fused function A
1 Interior illumination
Upper control panel control unit
Left SAM control unit
Rain sensor/light sensor
Instrument cluster
Combination switch
Central gateway control unit
10
2 Left SAM control unit 10
3 Left standing lamp and taillamp 7,5
4 Right parking light and taillamp 7,5
5 Front wiper 20
6 Vacant
7 Heated outside mirror 7,5
8 Right high beam 10
9 Left high beam 10
10 Horn 10
11 Fuel pump 15
12 ENGINE 122.9, 134.9, 135.9:
Motor electronics control unit
Motor relay
Throttle valve relay
20
13 Trailer hitch socket (13-pin) circuit 30 15
14 Glass sliding roof 20
15 Rear window wiper motor 15
16 Cigarette lighter 15
17 Rear fog lamp 7,5
18 Outside mirror adjustment 7,5
19 ENGINE 639.9:
EDG control unit
15
20 ENGINE 639.9:
EDG control unit
Fuel pump relay 2
Motor relay
7,5
21 Right low beam 10
22 Left low beam, headlamp range adjustment 10
23 Front fog lamp (up to model year 04) 15
Front fog lamp (as of model year 05) 10
24 Diagnostic socket, central locking (up to model year 04) 15
25 Trailer hitch socket (13-pin) circuit 15 15
26 Turn signal lights 15
27 Radio 15
28 Anti-theft alarm system 10
29 Manual transmission 20
30 Diagnostic socket, central locking (as of model year 05) 15
31 Brake lights
Stop lamp switch (4-pin)
15
32 AAC [KLA] control and operating unit 7,5
33 ESP control unit
Steering assist control unit
Restraint systems control unit
7,5
34 ENGINE 122.9, 134.9, 135.9:
Ignition coils
10
35 EDG control unit
Fuel pump relay 1
7,5
36 Reversing lights 7,5
37 Rear window heater 30
38 Heated seats 30
39 ENGINE 639.9:
EDG control unit
30
40 Heater blower 40
41 Ignition/starter switch 40
42 Power windows
Headlamp cleaning system pump
40
43 Engine coolant fan motor 40
44 Electronic selector lever module control unit (with transmission 717.474, 717.475) 40
Relay
A Power window relay
B Horn relay
C Fuel pump 2 relay
D Rear fog lamps relay
E Starter relay
F Gasoline/diesel engine relay
G Preexcitation alternator
H Fan stage 1 relay
I Fog lamp relay
J Heater relay
K Fuel pump 1 relay
L Transmission relay
M Trailer hitch bridge
N Free (backup relay)
O Fan stage 2 relay
P Headlamp cleaning system relay
Q Rear window defroster relay
R Heated seats bridge
S Low beam relay
T High beam relay
U Throttle valve relay (only with engine 134.910, 135.930/950)

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

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