Smart Fortwo A453, C453, W453- Fuses Box Diagram (2014)

The diagrams of relay, and fuse blocks of the Smart Fortwo A453, C453, W453 (2014), the location, purpose, and description of all blocks in the car are presented.

Diagrams shown for cars 2014, 2015, 2016, 2017, 2018

Vehicle interior fuse and relay module Smart Fortwo A453, C453, W453

Vehicle interior fuse and relay module Smart Fortwo A453, C453, W453

Vehicle interior fuse and relay module Smart Fortwo

Fused function (A)
1 Rear roof rack electrical connection 20
2 Spare
3 Spare
4 Spare
5 Driver-side SAM control unit 25
6 Driver-side SAM control unit 25
7 Driver-side SAM control unit 25
8 Center SAM control unit

Radio

Radio over connector sleeve for terminal 15 R

15
9 Spare
10 Horn 15
11 Battery sensor and driver-side SAM control unit 5
12 Front cigarette lighter with ashtray illumination 15
13 Spare
14 Automatic transmission protected through connector sleeve for circuit 30

Diagnostic connector

Valid for electric vehicle:

Fused circuit 30 connector sleeve

Diagnostic connector

20
15 Supply for fused circuit 30 connector sleeve 15
16 Motor electronics protected through connector sleeve for circuit 30

Valid for electric vehicle: Supply for fused circuit 30 connector sleeve

5
17 Supply protected through connector sleeve for circuit 30 15
18 Brake lights switch 10
19 Outside mirror adjustment switch 5
20 Transponder coil

Electronic Stability Program control unit and brake light switch

Protected through connector sleeve for circuit 30

3
21 Light functions protected through connector sleeve for circuit 30 10
22 Steering wheel angle sensor

Dual-clutch transmission control unit

5
23 Spare
24 Center SAM control unit 15
25 Center SAM control unit 10
26 Center SAM control unit 15
27 Center SAM control unit 20
28 Driver-side SAM control unit 10
29 Driver-side SAM control unit 10
30 Combination switch

Alarm siren

Supply for fused circuit 30 connector sleeve (valid for electric vehicle)

15
31 Instrument cluster and additional instruments 10
32 Spare
33 Supplemental Restraint System control unit 5
34 Combination switch 5
35 Electrical power steering control unit 5
36 Center SAM control unit 5
37 Driver-side SAM control unit 30
38 Air conditioning power supply solenoid switch 40
39 Starter

Through starter relay

30
Valid for electric vehicle: Blower motor 40
1/1 Valid for electric vehicle: Electric vehicle circuit 30 connector sleeve supply 10
1/2 Valid for electric vehicle:

Brake booster vacuum pump control unit

Power electronics control unit

1/3 Spare
1/4 Sound system amplifier control unit 20
1/5 Dual clutch transmission control unit

Valid for electric vehicle: Electric drive control unit

5
1/6 Left front power window motor and right front power window motor 25
1/7 Left electrically adjustable and heated outside mirror and right electrically adjustable and heated outside mirror 5
1/8 Valid for electric vehicle:

Front passenger seat heater control unit

Driver seat heater control unit

25
1/9 Spare
1/10 Valid for electric vehicle: Steering wheel heater relay
2/1 Supply for soft top control drive unit 20
2/2 Supply for soft top control drive unit 20
2/3 Spare
2/4 Spare
Relay
K1 Heated rear window/outside mirrors relay
K2 Front power window relay
K3 Sliding roof relay
K4 Front headlamps relay
K5 Starter relay
K6 Fanfare horn relay
K Valid for electric vehicle: Steering wheel heater relay

Combustion engine fuse and relay module Smart Fortwo (F1) (2014)

Combustion engine fuse and relay module (F1) (2014)

Combustion engine fuse and relay module (F1)

Fused function (A)
1 Internal combustion engine relay module

Valid for electric vehicle: Spare

Diode
2 Valid for USA: Supply for vacuum pump relay Diode
Valid for electric vehicle:

Transmission mode recognition sensor

Electric drive control unit

15
3 Fuel pump with fill level sensor and temperature sensor 20
Valid for electric vehicle: Electric vehicle drive motor fan relay 40
4 Supply for fused circuit 30 connector sleeve 25
Valid for electric vehicle: Battery cooling system coolant pumps relay 30
5 Supply for connector sleeves for circuit 87 15
Valid for electric vehicle: Battery cooling system coolant pump 15
6 Refrigerant compressor relay 15
Valid for electric vehicle:

Battery management system control unit

Electric drive control unit

5
7 Fan

Through fan relay

10
Valid for electric vehicle: Power electronics control unit power supply connector sleeve supply 20
8 Dual clutch transmission control unit 10
Valid for electric vehicle: Circuit 87 supply connector sleeve 15
Relay

 

K1 Engine function circuit 87 relay

 

K2 Fan relay
K3 Ignition coils/fuel pump actuation relay
K4 Valid for electric vehicle: Battery cooling system coolant pumps relay

Battery clamp fuse (F108) (2014)

Battery clamp fuse (F108) (2014)

Fused function (A)
F1 Electrical fuse 3A (F108f3A) and electrical fuse 3B (F108f3B)

Valid for electric vehicle: 

Power supply fuse and relay module (F1)

DC/DC converter control unit

200
F2A Vehicle interior fuse and relay module supply (F2)

Protected through connector sleeve for circuit 30

Connector sleeve for circuit 30

70
F2B Electrical power steering control unit 60
F3A Vehicle interior fuse and relay module supply (F2)

Ignition lock

Protected through connector sleeve for circuit 30

Connector sleeve for circuit 30

70
F3B Electronic Stability Program control unit 50

Power supply fuse and relay module (2014)

Power supply fuse and relay module (2014)

Power supply fuse and relay module

Fused function (A)
1 Heated rear window over relay for heated rear window/outside mirrors 30
2 Front passenger seat heater control unit

Driver seat heater control unit

Valid for electric vehicle: Brake booster vacuum pump control unit

30
3 Supply for Electronic Stability Program control unit 25
4 Valid for electric vehicle: Spare

Electrical fuse 1 and electrical fuse 2

40
Sliding roof relay 25
5 Supply for internal combustion engine fuse and relay module 60
6 Dual clutch transmission control unit

Protected through connector sleeve for circuit 30

50
Valid for electric vehicle: Vehicle interior fuse and relay module supply 40
7 Fan motor

Over fan relay

30
Fan solenoid switch

ICE combustion engine cooling

30
8 Spare
9 Valid for USA:Secondary air injection pump

Valid for electric vehicle: 

Heater for high-voltage battery

Over heater relay for high-voltage battery

60
Relay

 

K1 Fan relay

 

May Be Useful:



The purpose, and pinout elements in Smart Fortwo (A453, C453, W453; 2014 – present) may vary depending on the configuration, model, and year of manufacture, and if some electrical device in your car has stopped working, then the cause may be a blown fuse that must be replaced to solve the problem.

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