Table of Contents
The second-generation Volvo S40 sedan made its European debut in late 2003 at the Frankfurt Motor Show. Built on the Volvo P1 platform, it shares its architecture with Ford's global C1 platform developed by Ford's European design center (which also underpins the Ford Focus Mk2 and Mazda3). This guide provides comprehensive fuse box diagrams and relay assignments for the Volvo S40 (chassis code MS / 544) covering model years 2004 through 2013.
Here you will find fuse box locations, layout diagrams, and relay descriptions. Fuses designated for the “Cigarette lighter” and “Fuel pump” are highlighted in bold for quick reference.
Passenger Compartment Fuse Box
Located under the dashboard on the passenger side, beneath the glove compartment.
1. Remove the trim panel by pressing in the center pins of the retaining clips and pulling the clips out.
2. Remove the two retaining screws securing the unit.
3. Lower the fuse box and pull it partially forward.
| Diagram | ||
|---|---|---|
|
||
| No. | Description (2007–2013 models) | A |
| F37 | Spare | - |
| F38 | Spare | - |
| F39 | Spare | - |
| F40 | Spare | - |
| F41 | Spare | - |
| F42 | Spare | - |
| F43 | Telephone, audio system, RTI navigation*, Bluetooth | 15 |
| F44 | SRS airbag system | 10 |
| F45 |
|
15 |
| F46 | Interior lighting | 5 |
| F47 | 5 | |
| F48 | Windshield wipers and washer system | 15 |
| F49 | SRS airbag control module | 10 |
| F50 | Spare | - |
| F51 | Auxiliary cabin heater, AWD module, fuel filter heater relay, PTC heater element | 10 |
| F52 | Transmission Control Module (TCM), ABS system | 5 |
| F53 | Power steering control module | 10 |
| F54 | Engine Control Module (ECM) | 10 |
| F55 | Central locking remote receiver / Keyless entry | 10 |
| F56 | Anti-theft alarm siren | 10 |
| F57 | OBD-II diagnostic connector, brake light switch | 15 |
| F58 | Right high-beam headlight | 7.5 |
| F59 | Left high-beam headlight | 7.5 |
| F60 | Heated driver seat | 15 |
| F61 | Heated passenger seat | 15 |
| F62 | Power sunroof | 20 |
| F63 | Right rear door module | 20 |
| F64 | Audio system (IAM) | 5 |
| F65 | Telematics module | 5 |
| F66 | Infotainment Control Module (ICM), Climate Control Module (CCM) | 10 |
| F67 | Spare | 15 |
| F68 | Steering Column Module (SCM) | 5 |
| F69 | Climate control sensor, rain sensor, BLIS switch | 5 |
| F70 | Spare | - |
| F71 | Spare | - |
| F72 | Spare | - |
| F73 | Power sunroof, Overhead Console (OHC), rear seatbelt reminder, auto-dimming rearview mirror | 5 |
| F74 | Fuel pump fuse | 15 |
| F75 | Spare | - |
| F76 | Spare | - |
| F77 | Luggage compartment 12V power outlet, Accessory Electronic Module (AEM) | 15 |
| F78 | Spare | - |
| F79 | Backup / Reverse lights | 5 |
| F80 | Spare | - |
| F81 | Left rear door module | 20 |
| F82 | Right front door module | 25 |
| F83 | Left front door module | 25 |
| F84 | Power passenger seat | 25 |
| F85 | Power driver seat | 25 |
| F86 | Interior lighting, luggage compartment lighting, power seats, fuel level sensor (Flexifuel 1.8F) | 5 |
| 1 | Fuel pump relay | |
| 2 | Not used | |
| 3 | Not used | |
| 4 | Main ignition relay | |
| 5 | Not used | |
| No. | Description (2004–2007 models) | A |
| F37 | Spare | - |
| F38 | Spare | - |
| F39 | Spare | - |
| F40 | Spare | - |
| F41 | Spare | - |
| F42 | Spare | - |
| F43 | Telephone, audio system | 15 |
| F44 | SRS airbag system | 10 |
| F45 |
|
15 |
| F46 | Interior lighting | 5 |
| F47 | 5 | |
| F48 | Windshield wipers and washer system | 15 |
| F49 | SRS airbag control module | 10 |
| F50 | Spare | - |
| F51 | PTC auxiliary heater, headlight leveling | 10 |
| F52 | Anti-lock Braking System (ABS) | 5 |
| F53 | Power steering control module | 10 |
| F54 | Engine Control Module (ECM) | 10 |
| F55 | Central locking remote control system | 10 |
| F56 | Anti-theft alarm siren | 10 |
| F57 | OBD-II diagnostic connector, brake light switch | 15 |
| F58 | Right high-beam headlight | 7.5 |
| F59 | Left high-beam headlight | 7.5 |
| F60 | Heated driver seat | 15 |
| F61 | Heated passenger seat | 15 |
| F62 | Power sunroof | 20 |
| F63 | Right rear power window motor | 20 |
| F64 | Audio system | 5 |
| F65 | Telematics module | 5 |
| F66 | Climate Control Module (CCM) / Infotainment Control Module (ICM) | 10 |
| F67 | Spare | 15 |
| F68 | Steering Column Module (SCM) | 5 |
| F69 | Climate control sensor, rain sensor | 5 |
| F70 | Spare | - |
| F71 | Spare | - |
| F72 | Spare | - |
| F73 | Power sunroof, Overhead Console (OHC), rear seatbelt reminder | 5 |
| F74 | Fuel pump fuse | 15 |
| F75 | Spare | - |
| F76 | Spare | - |
| F77 | Luggage compartment 12V power outlet | 15 |
| F78 | Spare | - |
| F79 | Backup / Reverse lights | 5 |
| F80 | Spare | - |
| F81 | Left rear power window motor | 20 |
| F82 | Right front power window module | 25 |
| F83 | Left front power window module | 25 |
| F84 | Power passenger seat | 25 |
| F85 | Power driver seat | 25 |
| F86 | Interior lighting relay, power seat module | 5 |
| 1 | Fuel pump relay | |
| 2 | Not used | |
| 3 | Not used | |
| 4 | Main ignition relay | |
| 5 | Not used | |
Engine Compartment Fuse Box
Located on the left side of the engine compartment. To access the fuses, release the retaining clips and pull the protective cover upward.
Engine compartment fuse box layout.
| Diagram | ||
|---|---|---|
|
||
| No. | Protected circuits (2007–2013 models) | A |
| F1 | Radiator cooling fan motor | 50 |
| F2 | Electro-hydraulic power steering pump | 80 |
| F3 | Passenger compartment fuse box | 60 |
| F4 | 60 | |
| F5 | Climate control system, PTC auxiliary heater | 80 |
| F6 | Glow plug control module | 60 |
| F7 | Anti-lock Braking System (ABS) module | 30 |
| F8 | 20 | |
| F9 | Main engine relay | 30 |
| F10 | HVAC blower motor | 40 |
| F11 | Headlight washer pump | 20 |
| F12 | Heated rear window (defroster) | 30 |
| F13 | Starter motor | 30 |
| F14 | Trailer wiring connector | 40 |
| F15 | Spare | |
| F16 | Infotainment system power supply | 40 |
| F17 | Windshield wipers and washer system | 30 |
| F18 | Passenger compartment fuse box | 40 |
| F19 | Spare | |
| F20 | Horn | 15 |
| F21 | Fuel-fired auxiliary heater, cabin heater | 20 |
| F22 | Spare | 25 |
| F23 |
|
10/15 |
| F24 | Fuel filter heating element | 20 |
| F25 | Spare | |
| F26 | Ignition switch | 15 |
| F27 | A/C compressor clutch | 10 |
| F28 | Spare | |
| F29 | Front fog lights | 15 |
| F30 | Engine Control Module (ECM) | 10 |
| F31 | Alternator / Generator | 10 |
| F32 | Engine management system | 10 |
| F33 | 20 | |
| F34 | 10 | |
| F35 |
|
15 |
| F36 | Engine Control Module (ECM) | 10 |
| No. | Relay Assignments | |
| 1 | Headlight washer pump relay | |
| 2 | Not used | |
| 3 | Not used | |
| 4 | Heated rear window relay | |
| 5 | Not used | |
| 6 | Not used | |
| 7 | Immobilizer relay | |
| 8 | Engine management relay | |
| 9 | Starter motor relay | |
| 10 | A/C compressor relay | |
| 11 | Not used | |
| 12 | Fuel filter heater relay | |
| 13 | Front fog light relay | |
| 14 | Horn relay | |
| No. | Protected circuits (Volvo S40 models 2004–2007) | A |
| F1 | Radiator cooling fan motor | 50 |
| F2 | Electro-hydraulic power steering pump | 80 |
| F3 | Passenger compartment fuse box | 60 |
| F4 | 60 | |
| F5 | Climate control system | 80 |
| F6 | Glow plug control module | 60 |
| F7 | Anti-lock Braking System (ABS) module | 30 |
| F8 | 20 | |
| F9 | Main engine relay | 30 |
| F10 | HVAC blower motor | 40 |
| F11 | Headlight washer pump | 20 |
| F12 | Heated rear window (defroster) | 30 |
| F13 | Starter motor | 30 |
| F14 | Trailer wiring connector | 40 |
| F15 | Spare | |
| F16 | Passenger compartment fuse box | 40 |
| F17 | Windshield wipers and washer system | 30 |
| F18 | Passenger compartment fuse box | 40 |
| F19 | Spare | |
| F20 | Horn | 15 |
| F21 | Fuel-fired auxiliary heater, cabin heater | 20 |
| F22 | Spare | |
| F23 |
|
10 |
| F24 | Spare | |
| F25 | Spare | |
| F26 | Ignition switch | 15 |
| F27 | A/C compressor clutch | 10 |
| F28 | Spare | |
| F29 | Front fog lights | 15 |
| F30 | Engine Control Module (ECM) | 10 |
| F31 | Alternator / Generator | 10 |
| F32 | Engine management system | 10 |
| F33 | 20 | |
| F34 | 10 | |
| F35 | Engine sensors, VVT solenoids, A/C relay | 15 |
| F36 | Engine Control Module (ECM) | 10 |
| No. | Relay Assignments | |
| 1 | Headlight washer pump relay | |
| 2 | Not used | |
| 3 | ||
| 4 | Heated rear window relay | |
| 5 | Not used | |
| 6 | ||
| 7 | Immobilizer relay | |
| 8 | Engine management relay | |
| 9 | Starter motor relay | |
| 10 | A/C compressor relay | |
| 11 | Not used | |
| 12 | ||
| 13 | Front fog light relay | |
| 14 | Horn relay | |