2007-2015 Smart Fortwo 451 Fuse Box Diagram

Smart Fortwo
1998-2002
2002-2007
2007-2014
2014-present
W450
450
W451
W453
Only use fuses approved by smart with the specified amperage for the system in question and do not attempt to repair or bridge a blown fuse this may cause an overload leading to a fire, and/or cause damage to electrical components and/or systems.

2007-2015 Smart Fortwo 451 Fuse Box Diagram
The fuse box is located on the driver’s side below the dashboard.

Front side

2007-2015 Smart Fortwo 451 Fuse Box Diagram



No.
Fused function
A
1 Engine 132.9, 660.9: Starter
Engine 780.009: Brake booster vacuum pump
25
2 Wiper motor
25
3 Power window convenience feature control unit
20
4 Blower motor 25
5 Left front fog lamp
Right front fog lamp
10
6 Right taillight
Right parking lamp
Left license plate lamp
Right license plate lamp
7.5
7 Left taillight
Left parking light
7.5
8 Engine 132.9:
   Secondary air injection pump relay
   ME-SFI [ME] control unit
   Electronic selector lever module control unit
   Automated manual transmission control unit
   Cylinder 1 ignition coil
   Cylinder 2 ignition coil
   Cylinder 3 ignition coil
Engine 660.9:
   CDI control unit
   Electronic selector lever module control unit
   Automated manual transmission control unit
Engine 780.009: High-voltage battery heater
25
9 Engine 132.9:
   O2 sensor downstream of CAT
   O2 sensor upstream of CAT
   Adjustable camshaft timing solenoid
   External air shutoff valve
   Activated charcoal canister shutoff valve
   EGR switchover valve (with engine 132.910)
   Tank vent valve
   Pressure regulator valve(for engine 132.930)
Engine 780.009: Electric drive and high-voltage charger fan motor
Engine 660.9: CDI control unit
7.5
10 Engine 132.9:
   O2 sensor upstream of CAT
   Secondary air injection pump switchover valve
   Cylinder 1 fuel injection valve
   Cylinder 2 fuel injection valve
   Cylinder 3 fuel injection valve
Engine 780.009:
   Electric drive and high-voltage charger coolant pump
   Battery cooling system coolant pump
Engine 660.9:
   Hot film mass air flow sensor
   O2-sensor upstream of CAT
   CDI control unit
   Glow output stage
   EGR switchover valve
15
11 ESP control unit 25
12 Instrument cluster
Additional instruments
Microwave sensor
Rain sensor / light sensor
Alarm siren with inclination sensor
Left turn signal lamps/brake light relay
Right turn signal lamps/brake light relay
Mirror heater relay
Automated manual transmission control unit
TPM [RDK] control unit
Combination switch
Cockpit switch group
Data link connector
Starter-alternator control unit
STH radio remote control receiver (engine 780.009)
Rear fog light relay
10
13 Spare fuse 15
14 Refrigerant compressor
Charge air fan motor
15
15 Smart radio 9
Smart radio 10
Front interior lamp
Soft top OPEN relay
Soft top CLOSE relay
15
16 Engine 132.9:
   Fuel pump with fuel gauge sensor
   ME-SFI [ME] control unit
Engine 660.9:
   Fuel pump with fuel gauge sensor
   CDI control unit
Engine 780.009: Blower motor relay 1
15
17 Rear-end door wiper motor
15
18 Instrument cluster
Yaw rate sensor for lateral and longitudinal acceleration
Seat occupied recognition pressure sensor
Automatic child seat recognition airbag OFF indicator lamp
Restraint systems control unit
ESP control unit
Steering angle sensor
Steering assist control unit
Driver side seat belt buckle restraint systems switch
Front passenger-side seat belt buckle restraint systems switch
10
19 Engine 132.9:
   ME-SFI [ME] control unit
   Automated manual transmission control unit
   Data link connector
   TPM [RDK] control unit
   Starter-alternator control unit
Engine 780.009: Data link connector
Engine 660.9:
   CDI control unit
   Automated manual transmission control unit
   Data link connector
7,5
20 Smart radio 9
Smart radio 10
Heater/air conditioning operating unit
Front seat heater (SIH) control unit
Right wiper switch
Outside mirror adjustment switch
Electrically adjustable and heated outside mirrors
Soft top operation
Electronic selector lever module control unit
10
21 Interior socket
15
22 Left low beam
7.5
23 Right low beam 7.5
24 Engine 132.9: Electronic selector lever module control unit
Engine 132.9, 660.9, 780.009:
   Rear fog light relay
   Stop light switch
15
25 Right high beam
7.5
26 Left high beam
7.5
27 Engine 132.9: ME-SFI [ME] control unit
7.5
28 Heated rear window
40
29 Soft top OPEN relay
Soft top CLOSE relay
30
30 Engine 132.9, 660.9: Automated manual transmission control unit
Engine 780.009: High-voltage battery and interior fan motor
40
31 Horn
Right door CL motor
Left front door central locking motor
Rear-end door CL [ZV] motor
Fuel filler flap CL [ZV] motor
Horn switch
20
R1 Engine 132.9, 660.9: Mirror heater relay 7.5
R2 Engine 132.9: Stop light switch
7.5
R3 Vacant -
R4 Engine 780.009: Mirror heater relay 7.5-
R5 Engine 780.009:
   High-voltage charger control unit
   External socket communications control unit
7.5
R6 Engine 780.009: EVCM electric vehicle control unit
15
Engine 132.9, 660.9:
   Backup lamp relay
   Brake light relay
10
R7 as of 2.9.10; engine 132.9: Front interior lamp
Engine 660.9: Front interior lamp
-
Engine 780.009: EDCM electric motor control unit
10
R8 as of 2.9.10; engine 132.9: Sound system amplifier
Engine 660.9: Sound system amplifier
20
Engine 780.009: PDU high-voltage distributor control unit
7.5
R9 Engine 132.9, 660.9: Front seat heater (SIH) control unit
25
Engine 780.009: Brake booster vacuum pump control unit
25


Rear side

2007-2015 Smart Fortwo 451 Fuse Box Diagram
No.
Fused function
A
32 Vacant -
33 Ignition/starter switch
50
34 ESP control unit
40
35 Steering assist control unit
30

Relay

2007-2015 Smart Fortwo 451 Fuse Box Diagram
No.
Relay
A Left turn signal/stop lamp relay
High-voltage battery heater booster relay (only ECE vehicles)
B Right turn signal/stop lamp relay
Radiator fan motor relay (only ECE vehicles)
Fuel pump relay
C Mirror heater relay
Rear fog light relay
K57
High-voltage battery heater booster relay
K59
Radiator fan motor relay



2007-2015 Smart Fortwo 451 Fuse Box Diagram
No.
Relay
K61
Blower motor relay 1
K62
Blower motor relay 2
2007-2015 Smart Fortwo 451 Fuse Box Diagram
No.
Fused function
A
F36 Engine 132.9: Secondary air injection pump 50
F58 Engine 780.009: EDCM electric motor control unit 60
Engine 132.9:
   Starter
   Alternator
200
F91 SAM control unit 100
Fuse Box Diagram Smart Fortwo II (W451, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014)