Volvo S40 2008 Fuse Box Diagram
Fuse box location:
The fuses are located under the glovebox. The fuse box has 50 fuse positions.
Engine compartment fusebox:
The fuse box has 36 fuse positions.
Fuse Box Diagram | Layout
Engine compartment fusebox:
| Fuse N° | Rating | Functions |
| 1 | 50 A | Radiator fan |
| 2 | 80 A | Power steering |
| 3 | 60 A | Supply to the fuse box in the passenger compartment |
| 4 | 60 A | Supply to the fuse box in the passenger compartment |
| 5 | 80 A | Heating and ventilation unit, Additional heater relay coil (PTC) (only 4 cyl petrol) |
| 6 |
60 A 70 A |
Glow plugs (4-cyl. diesel) Glow plugs (5-cyl. diesel) |
| 7 | 30 A | ABS pump |
| 8 | 20 A | ABS valves |
| 9 | 30 A | Engine functions |
| 10 | 40 A | Ventilation fan |
| 11 | 20 A | Headlamp washers |
| 12 | 30 A | Supply to heated rear window |
| 13 | 30 A | Starter motor relay |
| 14 | 40 A | Trailer wiring |
| 15 | - | Reserve |
| 16 | 30 A | Supply to infotainment system |
| 17 | 30 A | Windscreen wipers |
| 18 | 40 A | Supply to passenger compartment fuse box |
| 19 | - | Reserve |
| 20 | 15 A | Horn |
| 21 | 20 A | Fuel-driven additional heater, passenger compartment heater |
| 22 | - | Reserve |
| 23 | 10 A | Engine control module (ECM) / transmission control module (TCM) |
| 24 | 20 A | Heated fuel filter, PTC element oil trap (5-cyl. diesel) |
| 25 | - | Reserve |
| 26 | 15 A | Ignition switch |
| 27 | 10 A | A/C compressor |
| 28 | - | Reserve |
| 29 | 15 A | Fog lamps front |
| 30 | 3 A | Engine control module ECM (1.6 l petrol, 2.0 l diesel) |
| 31 | 10 A | Voltage regulator, alternator 4-cyl. |
| 32 | 10 A | Injectors (5-cyl. petrol), lambda-sond (4-cyl. petrol), charge air cooler (4-cyl. diesel), mass air flow sensor and turbo control (5-cyl. diesel) |
| 33 | 20 A | Lambda-sond and vacuum pump (5-cyl. petrol), engine control module (5-cyl. diesel), diesel filter heater (4-cyl. diesel) |
| 34 | 10 A | Ignition coils (petrol), injectors (1.6 l petrol), fuel pump (4-cyl. diesel), pressure switch, climate control (5-cyl.), glow plugs and EGR emission control (5-cyl. diesel) |
| 35 | 15 A | Engine sensors for valves, relay coil, air conditioning PTC element, oil trap (5-cyl. petrol), engine control module ECM (5-cyl. diesel), canister (petrol), injectors (1.8/2.0 l petrol, MAF mass air flow sensor (5-cyl. petrol, 4-cyl. diesel), turbo control (4-cyl. diesel), pressure switch power steering (1.6 l petrol), EGR emission control (4-cyl. diesel) |
| 36 | 10 A | Engine control module ECM (not 5-cyl. diesel), accelerator pedal position sensor, lambda-sond (5-cyl. diesel) |
Passenger compartment:
| Fuse N° | Rating | Functions |
| 37 | - | Reserve |
| 38 | - | Reserve |
| 39 | - | Reserve |
| 40 | - | Reserve |
| 41 | - | Reserve |
| 42 | - | Reserve |
| 43 | 15 A | Phone, audio system, RTI (option) |
| 44 | 10 A | SRS system, engine control module ECM (5-cyl.) |
| 45 | 15 A | Electric socket |
| 46 | 5 A | Passenger compartment, glovebox and courtesy lighting |
| 47 | 5 A | Interior lighting |
| 48 | 15 A | Washer |
| 49 | 10 A | SRS system |
| 50 | - | Reserve |
| 51 | 10 A | Additional heater for the passenger compartment, AWD, fuel filter relay, heating |
| 52 | 5 A | Transmission control module (TCM), ABS system |
| 53 | 10 A | Power steering |
| 54 | 10 A | Parking assistance, Bi-Xenon (option) |
| 55 | 20 A | Keyless control module |
| 56 | 10 A | Remote control module, siren control module |
| 57 | 15 A | Data link connector (DLC), brake light switch |
| 58 | 7.5 A | Main beam (right), auxiliary lamps relay coil |
| 59 | 7.5 A | Main beam, left |
| 60 | 15 A | Seat heating (driver’s side) |
| 61 | 15 A | Seat heating (passenger side) |
| 62 | 20 A | Sunroof |
| 63 | 20 A | Supply to rear right door |
| 64 | 5 A | RTI (option) |
| 65 | 5 A | Infotainment system |
| 66 | 10 A | Infotainment control module (ICM), climate control |
| 67 | - | Reserve |
| 68 | 5 A | Cruise control |
| 69 | 5 A | Climate control, rain sensor |
| 70 | - | Reserve |
| 71 | - | Reserve |
| 72 | - | Reserve |
| 73 | 5 A | Sunroof, overhead console (OHC) rear seatbelt reminder, autodim mirror |
| 74 | 15 A | Fuel pump relay |
| 75 | - | Reserve |
| 76 | - | Reserve |
| 77 | 15 A | Electrical socket in cargo area, accessory electronic module (AEM) |
| 78 | - | Reserve |
| 79 | 5 A | Reversing lamps |
| 80 | - | Reserve |
| 81 | 20 A | Supply to rear left door |
| 82 | 25 A | Supply to front right door |
| 83 | 25 A | Supply to front left door |
| 84 | 25 A | Power passenger seat |
| 85 | 25 A | Power driver's seat |
| 86 | 5 A | Interior lighting, cargo area lighting, power seats, fuel level display (1.8F) |
