Mazda 3 BK (2004 – 2009) Fuse Box Diagrams & Location
The Mazda 3 BK (2004–2009) features several fuse boxes that protect essential electrical systems and components. This blog provides clear fuse box locations and diagrams, along with fuse ratings and circuit descriptions, helping you identify the correct fuse when checking or troubleshooting electrical issues.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located on the front passenger’s side below the glove box (remove the glove box bottom, turn the two clips and lower the fuse box down).
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 37 | D/LOCK 2 | 15A | Power door lock
2007-2009: Double locking system (Some models) |
| 38 | —
STOP STOP LAMP/HORN |
—
10A |
—
2006: Stop lights 2007-2009: Stop Lamp, Horn |
| 39 | HEAD HIGH L | 10A | Headlight high beams (LH) |
| 40 | HEAD HIGH R | 10A | Headlight high beams (RH) |
| 41 | — | — | — |
| 42 | — | — | — |
| 43 | CIGAR | 15A | Lighter |
| 44 | RADIO | 7.5A | Audio system |
| 45 | MIRROR | 10A | Power control mirror |
| 46 | TAIL R | 7.5A | Taillight (RH), Parking lights (RH) License plate lights |
| 47 | OBD | 10A | For protection of various circuits |
| 48 | — | — | — |
| 49 | TR/LOCK | 20A | — |
| 50 | CPU PWR
— |
10A
— |
Control unit 2007-2009: — |
| 51 | HAZARD
— |
15A
— |
Turn signals. Hazard warning flashers 2007-2009: — |
| 52 | SUN ROOF | 20A | MoonrooF |
| 53 | WASHER | 20A | Front washer. Rear window wiper and washer
2007-2009: Windshield wiper and washer |
| 54 | — | — | — |
| 55 | P/WIND R | 30A
— |
— 2007-2009: — |
| 56 | P/WIND L | 30A
— |
—
2007-2009: — |
| 57 | ALARM | 7.5A — |
—
2007-2009: — |
| 58 | M/DEF | 7.5A | Mirror Defroster |
| 59 | — | — | — |
| 60 | HEAD LOW R | 15A | Headlight low-beams (RH), Headlight leveling (Some models) |
| 61 | HEAD LOWL | 15A | Headlight low-beams (LH) |
| 62 | — | — | — |
| 63 | — | — | — |
| 64 | — | — | — |
| 65 | SAS | 10A | Supplemental restraint system |
| 66 | METER | 10A | Instrument cluster. Immobilizer system, Shift lock system |
| 67 | IGNITION | 20A | ABS\ EH PAS (Some models)
2007-2009: ABS (Some models), DSC (Some models), Power steering |
| 68 | WIPER | 20A | Windshield wiper 2007-2009: Windshield wiper and washer |
| 69 | ENGINE | 20A | For protection of various circuits |
| 70 | IG SIG | 10A | Auto wiper (Some models)
2007-2009: Auto wiper (Some models), Power window switch (Some models) |
| 71 | SAS 2 | 7.5A | Supplemental restraint system
2007-2009: Seat weight sensor |
| 72 | — | — | — |
| 73 | — | — | — |
| 74 | SEAT WARM | 20A | — 2007-2009: Seat wanner (Some models) |
| 75 | D/LOCK 1 | 25A | Power door lock |
| 76 | A/C | 10A | Air conditioner, Heater control unit
2007-2009: Air conditioner (Some models), Heater control unit |
| 77 | P/WIND L | 30A | Power window (LH) (Some models) |
| 78 | P/WIND R | 30A | Power window (RH) (Some models) |
| 79 | BACK | 10A | Reverse lights |
| 80 | SUN ROOF | 7.5A | Moonroof (Some models) |
| 81 | TAILL | 7.5A | Taillights (LH), Parking lights (LH) |
| 82 | ILLUMI | 7.5A | Illumination |
| 83 | — | — | — |
| 84 | — | — | — |
| 85 | — | — | — |
| 86 | — | — | — |
Engine Compartment Fuse Box
Without Turbocharger (2004-2009)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | FAN | 40A | Cooling fan |
| 2 | P/ST | 80A | EHPAS
2007-2009: Power steering |
| 3 | BTN | 40A | For protection of various circuits |
| 4 | HEAD | 40A | Headlights |
| 5 | PTC | 80A | — |
| 6 | GLOW | 60A | — |
| 7 | ABS 1 | 30A | ABS (Some models) 2007-2009: ABS (Some models), DSC (Some models) |
| 8 | ABS 2 | 20A | ABS (Some models)
2007-2009: ABS (Some models), DSC (Some models) |
| 9 | ENGINE | 30A | For protection of various circuits |
| 10 | — | — | — |
| 11 | IG KEY 1 | 30A | Ignition switch |
| 12 | STARTER | 20A | Starter clutch |
| 13 | IG KEY 2 | 30A | Ignition switch |
| 14 | — | — | — |
| 15 | HEATER | 40A | Blower motor |
| 16 | — | — | — |
| 17 | DEFOG | 40A | Rear window-defroster |
| 18 | —
AUDIO |
— 30A |
—
2006-2009: Audio system (BOSE Sound System-equipped model) |
| 19 | ABS IG | 10A | ABS (Some models)
2007-2009: ABS (Some models), DSC (Some models) |
| 20 | FOG | 15A | Fog lights (Some models) |
| 21 | HORN | 15A | Horn |
| 22 | — DRL |
—
10A |
—
2007-2009: DRL (Some models) |
| 23 | H/CLEAN | 20A | — |
| 24 | F/PUMP | 15A | Fuel pump |
| 25 | P/ST IG | 10A | Power steering |
| 26 | A/C MAG | 10A | Air conditioner |
| 27 | ALT TCM |
10A
15A |
—
2006-2009: Transmission control module |
| 28 | — | — | — |
| 29 | — P.OUTLET |
—
15A |
—
2007-2009: P.OUTLET |
| 30 | ENG +B | 10A | PCM |
| 31 | ROOM | 15A | Interior lights |
| 32 | ENG BAR 4 | 10A | O 2 heater |
| 33 | ENG BAR 3 | 10A | O 2 heater |
| 34 | EGI INJ | 10A | Injector |
| 35 | ENG BAR 1 | 10A | Air flow sensor 2007-2009: For protection of various circuits |
| 36 | ENG BAR 2 | 10A | EGR control valve
2007-2009: PCM, Fuel pump |
With Turbocharger (2007-2009)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | FAN | 70A | Cooling fan |
| 2 | — | — | — |
| 3 | BTN | 40A | For protection of various circuits |
| 4 | HEAD | 40A | Headlights |
| 5 | F/PUMP | 30A | Fuel pump |
| 6 | — | — | — |
| 7 | ABS 1 | 30A | ABS, DSC |
| 8 | ABS 2 | 20A | ABS, DSC |
| 9 | ENGINE | 30A | For protection of various circuits |
| 10 | INJECTOR | 30A | Fuel injector |
| 11 | IG KEY 1 | 30A | Ignition switch |
| 12 | STATER | 20A | Starter clutch |
| 13 | IG KEY2 | 30A | Ignition switch |
| 14 | — | — | — |
| 15 | HEATER | 40A | Blower motor |
| 16 | — | — | — |
| 17 | DEFOG | 40A | Rear window deforester |
| 18 | AUDIO | 30A | Audio system (BOSE Sound System-equipped model) |
| 19 | ABS IG | 10A | ABS |
| 20 | FOG | 15A | Front fog lights |
| 21 | HORN | 15A | Horn |
| 22 | DRL | 10A | DRL (Some models) |
| 23 | H/CLEAN | — | — |
| 24 | ETC | 10A | Elec, throttle valve |
| 25 | — | — | — |
| 26 | A/C MAG | 10A | Air conditioner |
| 27 | — | — | — |
| 28 | — | — | — |
| 29 | P.OUTLET | 15A | Power outlet |
| 30 | ENG +B | 10A | PCM |
| 31 | ROOM | 15A | Interior lights |
| 32 | — | — | — |
| 33 | ENG BAR 3 | 10A | O2 sensors |
| 34 | — | — | — |
| 35 | ENG BAR 1 | 15A | For protection of various circuits |
| 36 | ENG BAR 2 | 10A | PCM, Fuel pump |
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