Smart Fortwo (2013) coupe and cabriolet – fuse box diagram (USA version)
Year of production: 2013
Fuse box in the passenger compartment
| Fuse | Accessory/component | Ampere rating [A] | Color |
| 1 | Engine | 25 | Neutral |
| 2 | Windshield wipers | 25 | Neutral |
| 3 | Power window (left and right) | 20 | Yellow |
| 4 | Passenger compartment blower (HVAC) | 25 | Neutral |
| 5 | Front fog lamps, LED daytime running lamps | 10 | Red |
| 6 | Right parking lamp, right tail lamp, license plate lamps | 7,5 | Brown |
| 7 | Left parking lamp, left tail lamp | 7,5 | Brown |
| 8 | Engine, transmission, shifter | 25 | Neutral |
| 9 | Engine | 7,5 | Brown |
| 10 | Engine, transmission, shifter | 15 | Blue |
| 11 | ESP® control unit | 25 | Neutral |
| 12 | Exterior lamp switch, turn signal lamp switch, cockpit switch module, on-board diagnostics socket, transmission control unit, exterior rear view mirror heating, anti-theft warning system, rain-light sensor, auxiliary instruments, central locking system, instrument cluster, Tire Pressure Monitoring System (TPMS), brake and turn signal lamps (left and right) | 10 | Red |
| 13 | — | — | — |
| 14 | Air conditioning compressor | 15 | Blue |
| 15 | Audio, subwoofer, sound system, soft top (cabriolet only), interior light | 15 | Blue |
| 16 | Fuel pump with fuel level sensor | 15 | Blue |
| 17 | Rear window wiper (coupé only) | 15 | Blue |
| 18 | ESP® control unit, EPS control unit, restraint system | 10 | Red |
| 19 | Engine control unit, transmission control unit, Tire Pressure Monitoring System (TPMS), on-board diagnostics socket | 7,5 | Brown |
| 20 | Air conditioning system, exterior rear view mirror adjustment, washer pump, audio, seat heating, wiper switch, soft top switch (cabriolet only) | 10 | Red |
| 21 | Auxiliary power outlet | 15 | Blue |
| 22 | Left low‑beam headlamp | 7,5 | Brown |
| 23 | Right low‑beam headlamp | 7,5 | Brown |
| 24 | Backup lamp | 15 | Blue |
| 25 | Right high‑beam headlamp | 7,5 | Brown |
| 26 | Left high‑beam headlamp | 7,5 | Brown |
| 27 | Engine | 7,5 | Brown |
| 28 | Rear window defroster, radiator cooling fan | 40 | Orange |
| 29 | Soft top (cabriolet only) | 30 | Green |
| 30 | Transmission control unit | 40 | Orange |
| 31 | Horn, central locking system | 20 | Yellow |
| 32 | — | — | — |
| 33 | Starter switch (ignition) | 50 | Red |
| 34 | ESP® control unit | 40 | Orange |
| 35 | EPS control unit | 30 | Green |
| R1 | Exterior rear view mirror heating | 7,5 | Brown |
| R2 | Brake lamps | 7,5 | Brown |
| R3 | — | — | — |
| R4 | — | — | — |
| R5 | Windshield unit car2go | 10 | Red |
| R6 | — | — | — |
| R7 | Interior lighting | 5 | Light brown |
| R8 | Surround sound system | 20 | Yellow |
| R9 | Seat heating control unit | 25 | Neutral |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.