Volvo S40 mk2 (Second Generation; 2009) – fuse box diagram
Year of production: 2009
Fuse box in the engine compartment
| Fuse | Usage | Ampre ratting [A] |
| 1 | Coolant fan (radiator) | 50 |
| 2 | Power steering | 80 |
| 3 | Feed to passenger compartment fuse box | 60 |
| 4 | Feed to passenger compartment fuse box | 60 |
| 5 | Element, climate unit | 80 |
| 6 | — | — |
| 7 | ABS pump | 40 |
| 8 | ABS valves | 20 |
| 9 | Engine functions | 30 |
| 10 | Climate system blower | 40 |
| 11 | Headlamp washers | 20 |
| 12 | Feed to heated rear window | 30 |
| 13 | Starter motor relay | 30 |
| 14 | Trailer connector (accessory) | 40 |
| 15 | — | — |
| 16 | Feed to audio system | 30 |
| 17 | Windshield wipers | 30 |
| 18 | Feed to passenger compartment fuse box | 40 |
| 19 | — | — |
| 20 | Horn | 15 |
| 21 | — | — |
| 22 | — | — |
| 23 | Engine control module (ECM)/transmission control module (TCM) | 10 |
| 24 | — | — |
| 25 | — | — |
| 26 | Ignition switch | 15 |
| 27 | A/C compressor | 10 |
| 28 | — | — |
| 29 | Front fog lights* | 15 |
| 30 | — | — |
| 31 | — | — |
| 32 | Fuel injectors | 10 |
| 33 | Heated oxygen sensor, vacuum pump | 20 |
| 34 | Ignition coils, climate unit pressure sensor | 10 |
| 35 | Engine sensor valves, A/C relay, relay coil, PTC element oil trap, canister, mass air meter | 15 |
| 36 | Engine control module (ECM), throttle sensor | 10 |
Fuse box in the passenger compartment
The fuse box in the passenger compartment is located under the glove compartment.
| Fuse | Usage | Ampere ratting [A] |
| 37 | Not in use | — |
| 38 | Not in use | — |
| 39 | Not in use | — |
| 40 | Not in use | — |
| 41 | Not in use | — |
| 42 | Not in use | — |
| 43 | Audio system, Volvo Navigation system (option) | 15 |
| 44 | Supplemental Restrain System (SRS), engine control module | 10 |
| 45 | 12-volt socket in rear sea | 15 |
| 46 | Lighting – glove compartment, instrument panel, and footwells | 5 |
| 47 | Interior lighting | 5 |
| 48 | Windshield washers | 15 |
| 49 | Supplemental Restrain System (SRS), Occupant Weight Sensor (OWS) | 10 |
| 50 | — | — |
| 51 | AWD, fuel filter relay | 10 |
| 52 | Transmission control module (TCM), ABS | 5 |
| 53 | Power steering | 10 |
| 54 | Park assist (option) BiXenon headlights (option) | 10 |
| 55 | — | — |
| 56 | Volvo Navigation System remote control module (option), alarm siren control module | 10 |
| 57 | On-board diagnostic socket, brake light switch | 15 |
| 58 | Right high beam, auxiliary lights relay | 7,5 |
| 59 | Left high beam | 7,5 |
| 60 | Heated driver’s seat (option) | 15 |
| 61 | Heated passenger’s seat (option) | 15 |
| 62 | Moonroof (option) | 20 |
| 63 | Power window and door lock – rear passenger’s side door | 20 |
| 64 | Audio system, Volvo Navigation system (option) | 5 |
| 65 | Audio system | 5 |
| 66 | Audio system control module (ICM), climate system | 10 |
| 67 | — | — |
| 68 | Cruise control | 5 |
| 69 | Climate system, rain sensor (option), BLIS button (option) | 5 |
| 70 | — | — |
| 71 | — | — |
| 72 | — | — |
| 73 | Moonroof, front ceiling lighting, auto-dim mirror, (option) seat belt reminde | 5 |
| 74 | Fuel pump relay | 15 |
| 75 | — | — |
| 76 | — | — |
| 77 | Auxiliary equipment control module (AEM) | 15 |
| 78 | — | — |
| 79 | Back-up lights | 5 |
| 80 | — | — |
| 81 | Power window and door lock – rear driver’s side door | 20 |
| 82 | Power window – front passenger’s side door | 25 |
| 83 | Power window and door lock – front driver’s side door | 25 |
| 84 | Power passenger’s seat | 25 |
| 85 | Power driver’s seat | 25 |
| 86 | Interior lighting relay, trunk lighting, power seats | 5 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.