Smart Fortwo 451 (2007-2015) – fuse box

Smart Fortwo 451 (2007-2015) – fuse box diagram

Year of production: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015.

The cigarette lighter fuse (power socket) on the Smarta Fortwo 451 (2007-2015)  is fuse 21 in the fuse box on the dashboard.

Dashboard

The fuse box is located on the driver’s side under the dashboard.

Front

Smart ForTwo 451 – fuse box diagram – dashboard (front)
Number
Description
Amperes [A]
1 Engine 132.9, 660.9:

Starter;

Engine 780.009:

Brake booster vacuum pump.

25
2 Wiper motor 25
3 Electric window comfort function control unit 20
4 Blower motor 25
5 Left front fog lamp;

Front right fog lamp.

10
6 Right rear light;

Right parking light;

Left license plate light;

Right license plate lamp.

7.5
7 Left rear light;

Left parking light.

7.5
8 Motor 132.9:
Secondary air injection pump;Me-SFI [ME] relay;

Electronic switch lever control module;

Automatic gear manual control device;

Cylinder 1 of the ignition coil;

Ignition coil 2 cylinder;

Ignition coil 3 cylinder;

engine 660.9:

CDI control unit;

Electronic switch control module

unit lever;

Automated manual control unit

transmission;

Engine 780.009:

High-voltage battery heater.

25
9 Engine 132.9:

O2 sensor after CAT sensor;

O2 before CAT;

Adjustable Camshaft Timing Solenoid;

External air shut-off valve;

Activated carbon tank shut-off valve;

EGR reversing valve (with engine 132.910);

Tank vent valve;

Pressure regulator valve (for engine 132.930);

Engine 780.009:

Electric and high voltage drive

loader fan motor;

Engine 660.9:

CDI control unit.

7.5
10 Engine 132.9:

O2 sensor upstream of CAT;

Secondary air injection pump diverter valve;

Cylinder 1 Fuel injection valve;

Cylinder 2 Fuel injection valve;

Cylinder 3 Fuel injection valve;

Engine 780.009:

Electric drive and coolant pump

high voltage recharger;

Coolant pump for the battery cooling system;

Engine 660.9:

Hot foil mass air flow sensor;

O2 sensor in front of CAT CDI control unit;

EGR glow output switchover valve.

15
11 ESP control unit 25
12 Instrument cluster, Additional instruments;

Microwave sensor;

Rain sensor / light sensor;

Alarm siren with tilt sensor;

Left turn signal lights,

Brake light relay;

Right turn signal lights,

brake light relay;

Mirror heater relay;

Automatic manual driver

TPM gearbox [RDK];

Combined controller;

Cockpit switch;

Data link connector;

Starter-alternator controller;

Remote control receiver

STH radio (engine 780.009);

Rear fog lamp 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 roof relay;

Relay OPEN.

15
16 Engine 132.9:

Fuel pump with gauge sensor

fuel level ME-SFI [ME];

Engine 660.9:

Fuel pump with fuel level indicator sensor;

CDI control unit;

Engine 780.009:

Blower motor relay 1.

15
17 Rear door wiper motor 15
18 Yaw sensor instrument cluster tolateral and longitudinal acceleration;

Seat occupancy sensor;

Automatic pillow cut-off unit

air (child seat);

ESP;

Power steering control unit;

Seatbelts.

10
19 Engine 132.9:

ME-SFI [ME] Control unit;

Automated manual unit

gearbox control;

Data link connector;

TPM control unit [RDK];

Starter and alternator control unit;

Engine 780.009:

Data link connector;

Engine 660.9:

CDI control unit;

Automated manual unit

gearbox control;

Data link connector.

7.5
20 Smart radio 9;

Smart radio 10;

Heater / air conditioning controller;

Front Seat Heater (SIH) controller;

Right wiper switch;

Outside mirror adjustment switch;

Electrically adjustable and heated door mirrors.

10
21 Internal socket
15
22 Left low beam 7.5
23 Right low beam 7.5
24 Engine 132.9:

Electronic control unit of the module

gear lever;

Engine   132.9, 660.9, 780.009:

Rear fog lamp 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 roof OPEN relay (opening);

Soft-top CLOSE relay.

30
30 Engine 132.9, 660.9:

Automatic manual gearbox control unit;

Engine 780.009:

High voltage battery and motor

internal fan.

40
31 Horn;

Right door CL engine;

Left front door. Central locking;

Rear door CL engine [ZV];

Fuel filler flap Engine CL [ZV];

Horn switch.

20
R1 Engine 132.9, 660.9:

Mirror heater relay.

7.5
R2 Engine 132.9:

Stop light switch.

7.5
R3 Empty
R4 Engine 780.009:

Mirror heater relay.

7.5-
R5 Engine 780.009:

High voltage charger control unit;

External control unit for communication with the socket.

7.5
R6 Engine 780.009:

EVCM electric vehicle control unit

15
Engine 132.9, 660.9:

Reverse light relay;

Brake light relay.

10
R7 from 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 from 2.9.10; Engine 132.9:

Sound system amplifier;

Engine 660.9:

Sound system amplifier.

20
Engine 780.009:

PDU high voltage splitter control unit

7.5
R9 Engine 132.9, 660.9:

Heater control unit

front seat (SIH)

25
Engine 780.009:

Brake booster vacuum pump controller.

25
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Reverse

Smart ForTwo 451 – fuse box diagram – dashboard (rear)
Number
Description
Amperes [A]
32 Empty
33 Ignition / starter switch 50
34 ESP control unit 40
35 Power steering control unit 30

Relay

Smart ForTwo 451 – fuse box diagram – relay
Number
Relay
A Left turn signal / brake light relay

Battery heater support relay

high voltage (ECE vehicles only).

B Right turn signal / brake light relay;

Radiator fan motor relay

(only ECE vehicles);

Fuel pump relay.

C. Mirror heater relay;

Rear fog light relay.

K57 Heater support relayhigh voltage battery.
K59 Radiator fan motor relay
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Smart ForTwo 451 – fuse box diagram – relay
Number
Relay
K61 Blower motor relay 1
K62 Blower motor relay 2

Smart ForTwo 451 – fuse box diagram – relay
Number
Description
Amperes [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
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