Mazda 3 BK (2003 – 2008) – fuse box diagram
Year of production: 2003, 2004, 2005, 2006, 2007, 2008
Engine compartment fuse box
| No. | Fuse | A | Protected component |
| 1 | FAN | 40 70** |
Cooling fan |
| 2 | P/ST | 80 | Power steering |
| 3 | BTN | 40 | For protection of various circuits |
| 4 | HEAD | 40 | Headlights |
| 5 | PTC | — | — |
| 5** | F/PUMP | 30 | Fuel pump |
| 6 | GLOW | — | — |
| 7 | ABS 1 | 30 | ABS*, DSC* |
| 8 | ABS 2 | 20 | ABS*, DSC* |
| 9 | ENGINE | 30 | For protection of various circuits |
| 10 | — | — | — |
| 10 | INJECTOR | 30 | Fuel injector |
| 11 | IG KEY 1 | 30 | Ignition switch |
| 12 | STARTER | 20 | Starter clutch |
| 13 | IG KEY 2 | 30 | Ignition switch |
| 14 | GLOW 1 | — | — |
| 15 | HEATER | 40 | Blower motor |
| 16 | GLOW 2 | — | — |
| 17 | DEFOG | 40 | Rear window defroster |
| 18 | AUDIO | 30 | Audio system (BOSE Sound System-equipped model) |
| 19 | ABS IG | 10 | ABS*, DSC* |
| 20 | FOG | 15 | Front fog lights * |
| 21 | HORN | 15 | Horn |
| 22 | DRL | 10 | DRL* |
| 23 | H/CLEAN | — | — |
| 24 | F/PUMP | 15 | Fuel pump |
| 24** | ETC | 10 | Elec, throttle valve |
| 25 | P/ST IG | 10 | Power steering |
| 26 | A/CMAG | 10 | Air conditioner* |
| 27 | ALT/TCM | 10/15 | TCM* |
| 28 | GLOW S1G | — | — |
| 29 | P.OUTLET | 15 | Power outlet |
| 30 | ENG +B | 10 | PCM |
| 31 | ROOM | 15 | Interior lights |
| 32 | ENG BAR 4 | 10 | 02 sensors * |
| 33 | ENG BAR 3 | 10 | 02 sensors |
| 34 | EGIINJ | 10 | Injector |
| 35 | ENG BAR 1 | 10 15** |
For protection of various circuits |
| 36 | ENG BAR 2 | 10 | PCM, Fuel pump |
| * Some models ** With turbocharger |
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The instrument panel fuse panel
| No. | Fuse | A | Protected component |
| 37 | D/LOCK 2 | 15 | Double locking system * |
| 38 | STOP LAMP/HORN | 10 | Stop Lamp, Horn |
| 39 | HEAD HIGH L | 10 | Headlight high beam (LH) |
| 40 | HEAD HIGH R | 10 | Headlight high beam (RII) |
| 41 | — | — | — |
| 42 | — | — | — |
| 43 | CIGAR | 15 | Lighter |
| 44 | RADIO | 7.5 | Audio system |
| 45 | MIRROR | 10 | Power control mirror* |
| 46 | TAIL R | 7.5 | Taillight (RH), Parking light (RH), License plate lights |
| 47 | OBD | 10 | For protection of various circuits |
| 48 | — | — | — |
| 49 | TR/LOCK | — | — |
| 50 | — | — | — |
| 51 | — | — | — |
| 52 | SUN ROOF | 20 | Moonroof* |
| 53 | WASHER | 20 | Windshield wiper and washer |
| 54 | — | — | — |
| 55 | P/W1ND R | — | — |
| 56 | P/WINDL | — | — |
| 57 | ALARM | — | — |
| 58 | M/DEF | 7.5 | Mirror Defroster* |
| 59 | — | — | — |
| 60 | HEAD LOW R | 15 | Headlight low beam (RH), Headlight leveling |
| 61 | HEAD LOW L | 15 | Headlight low beam (LI I) |
| 62 | — | — | — |
| 63 | — | — | — |
| 64 | — | — | — |
| 65 | SAS | 10 | Supplemental restraint system |
| 66 | METER | 10 | Instrument cluster, Immobilizer system |
| 67 | IGNITION | 20 | ABS *, DSC *, Power steering |
| 68 | WIPER | 20 | Windshield wiper and washer |
| 69 | ENGINE | 20 | For protection of various circuits |
| 70 | IG SIG | 10 | Auto wiper *, Power window switch * |
| 71 | SAS 2 | 7.5 | Seat weight sensor |
| 72 | — | — | — |
| 73 | — | — | — |
| 74 | SEAT WARM | 20 | Seat warmer* |
| 75 | D/LOCK 1 | 25 | Power door lock * |
| 76 | A/C | 10 | Air conditioner , Heater control unit |
| 77 | P/WINDL | 30 | Power window (LH) |
| 78 | P/WIND R | 30 | Power window (RH) * |
| 79 | BACK | 10 | Reverse lights |
| 80 | SUN ROOF | 7.5 | Moonroof* |
| 81 | TAILL | 7.5 | Taillight (LH), Parking light (LH) |
| 82 | 1LLUMI | 7.5 | Illumination |
| 83 | — | — | — |
| 84 | — | — | — |
| 85 | — | — | — |
| 86 | — | — | — |
| * Some models | |||
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
