2004-2006 Smart Forfour
Fuse Block
| No. | A | Description |
|---|---|---|
| 1 | 10 | Interior illumination Upper control panel control unit Left SAM control unit Rain sensor/light sensor Instrument cluster Combination switch Central gateway control unit |
| 2 | 10 | Left SAM control unit |
| 3 | 7.5 | Left standing lamp and taillamp |
| 4 | 7.5 | Right parking light and taillamp |
| 5 | 20 | Front wiper |
| 6 | - | Vacant |
| 7 | 7.5 | Heated outside mirror |
| 8 | 10 | Right high beam |
| 9 | 10 | Left high beam |
| 10 | 10 | Horn |
| 11 | 15 | Fuel pump |
| 12 | 20 | ENGINE 122.9, 134.9, 135.9: Motor electronics control unit Motor relay Throttle valve relay |
| 13 | 15 | Trailer hitch socket (13-pin) circuit 30 |
| 14 | 20 | Glass sliding roof |
| 15 | 15 | Rear window wiper motor |
| 16 | 15 | Cigarette lighter |
| 17 | 7.5 | Rear fog lamp |
| 18 | 7.5 | Outside mirror adjustment |
| 19 | 15 | ENGINE 639.9: EDG control unit |
| 20 | 7.5 | ENGINE 639.9: EDG control unit Fuel pump relay 2 Motor relay |
| 21 | 10 | Right low beam |
| 22 | 10 | Left low beam, headlamp range adjustment |
| 23 | 15 | Front fog lamp (up to model year 04) |
| 10 | Front fog lamp (as of model year 05) | |
| 24 | 15 | Diagnostic socket, central locking (up to model year 04) |
| 25 | 15 | Trailer hitch socket (13-pin) circuit 15 |
| 26 | 10 | Turn signal lights |
| 27 | 15 | Radio |
| 28 | 10 | Anti-theft alarm system |
| 29 | 20 | Manual transmission |
| 30 | 15 | Diagnostic socket, central locking (as of model year 05) |
| 31 | 15 | Brake lights Stop lamp switch (4-pin) |
| 32 | 7.5 | AAC [KLA] control and operating unit |
| 33 | 7.5 | ESP control unit Steering assist control unit Restraint systems control unit |
| 34 | 10 | ENGINE 122.9, 134.9, 135.9: Ignition coils |
| 35 | 7.5 | EDG control unit Fuel pump relay 1 |
| 36 | 7.5 | Reversing lights |
| 37 | 30 | Rear window heater |
| 38 | 30 | Heated seats |
| 39 | 30 | ENGINE 639.9: EDG control unit |
| 40 | 40 | Heater blower |
| 41 | 40 | Ignition/starter switch |
| 42 | 40 | Power windows Headlamp cleaning system pump |
| 43 | 40 | Engine coolant fan motor |
| 44 | 40 | Electronic selector lever module control unit (with transmission 717.474, 717.475) |
| Relay | ||
| A | Power window | |
| B | Horn | |
| C | Fuel pump 2 | |
| D | Rear fog lamps | |
| E | Starter | |
| F | Gasoline/diesel engine | |
| G | Preexcitation alternator | |
| H | Fan stage 1 | |
| I | Fog lamp | |
| J | Heater relay | |
| K | Fuel pump 1 | |
| L | Transmission | |
| M | Trailer hitch bridge | |
| N | Free (backup relay) | |
| O | Fan stage 2 | |
| P | Headlamp cleaning system | |
| Q | Rear window defroster | |
| R | Heated seats bridge | |
| S | Low beam | |
| T | High beam | |
| U | 134.910, 135.930/950: Throttle valve | |
Petrol engine:
- M134 - 1.1
- M135.930 - 1.3
- M135.950 - 1.5 and 1.5 SportStyle
- M122 - 1.5 Brabus
Diesel engine
- OM 639 - 1.5 CDI