Mazda 3 (2003-2005) – fuse and relay box
Diagrams of fuse and relay boxes – Mazda 3 BK
Applies to vehicles manufactured in the years:
2003, 2004, 2005.
The cigarette lighter on the Mazda 3 BK is fuse number 43 “CIGAR” in the passenger compartment fuse box.
Fuse block (engine compartment)
| Number | name | Amperes [A] | Description |
| 1 | FAN | 40 | Cooling fan |
| 2 | P / ST | 80 | EHPAS |
| 3 | BTN | 40 | To protect various circuits |
| 4 | HEAD | 40 | Headlights |
| 5 | PTC | 80 | – |
| 6 | GLOW | 60 | – |
| 7 | ABS 1 | 30 | ABS * |
| 8 | ABS 2 | 20 | ABS * |
| 9 | ENGINE | 30 | To protect various circuits |
| 10 | – | – | – |
| 11 | IG KEY 1 | 30 | Ignition switch |
| 12 | STARTER | 20 | Starter clutch |
| 13 | IG KEY 2 | 30 | Ignition switch |
| 14 | – | – | – |
| 15 | HEATER | 40 | Blower motor |
| 16 | – | – | – |
| 17 | DEFOG | 40 | Rear window defroster |
| 18 | AUDIO | 30 | Audio system
(model equipped with BOSE Sound System) |
| 19 | ABS IG | 10 | ABS * |
| 20 | FOG | 15 | Fog lights* |
| 21 | HORN | 15 | Horn |
| 22 | – | – | – |
| 23 | H / CLEAN | 20 | – |
| 24 | F / PUMP | 15 | Fuel pump |
| 25 | P / ST IG | 10 | Power steering |
| 26 | A / C MAG | 10 | Air conditioner |
| 27 | TCM | 15 | Transmission control module |
| 28 | – | – | – |
| 29 | – | – | – |
| 30 | ENG + B | 10 | PCM |
| 31 | ROOM | 15 | Interior lights |
| 32 | ENG BAR 4 | 10 | O2 heater |
| 33 | ENG BAR 3 | 10 | O2 heater |
| 34 | EGI INJ | 10 | Injector |
| 35 | ENG BAR 1 | 10 | Air flow sensor |
| 36 | ENG BAR 2 | 10 | EGR control valve |
| * Some models | |||
Fuse Block (Passenger Side)
| Number | name | Amperes [A] | Description |
| 37 | D / LOCK 2 | 15 | Electric door lock |
| 38 | STOP | 10 | Stop lights |
| 39 | HEAD HIGH L | 10 | High beam (left) |
| 40 | HEAD HIGH R | 10 | High beam (right) |
| 41 | – | – | – |
| 42 | – | – | – |
| 43 | CIGAR | 15 | Lighter |
| 44 | RADIO | 7.5 | Sound system |
| 45 | MIRROR | 10 | Control of the side mirrors |
| 46 | TAIL R | 7.5 | Rear lights (right);
Parking lights (right); License plate lighting. |
| 47 | OBD | 10 | To protect various circuits |
| 48 | – | – | – |
| 49 | TR / LOCK | 20 | – |
| 50 | CPU PWR | 10 | Control unit |
| 51 | HAZARD | 15 | Direction indicators;
Warning lights. |
| 52 | SUN ROOF | 20 | Sunroof * |
| 53 | WASHER | 20 | Windshield washer;
Rear window wiper and washer. |
| 54 | – | – | – |
| 55 | P / WIND R | 30 | – |
| 56 | P / WIND L. | 30 | – |
| 57 | ALARM | 7.5 | – |
| 58 | M / DEF | 7.5 | Side mirror defogger |
| 59 | – | – | – |
| 60 | HEAD LOW R | 15 | Dipped beam (right);
Headlamp leveling * |
| 61 | HEAD LOW L | 15 | Low beam (left) |
| 62 | – | – | – |
| 63 | – | – | – |
| 64 | – | – | – |
| 65 | SAS | 10 | Additional restraint system |
| 66 | METER | 10 | Instrument cluster;
Mmobilizer system; Shift lock system. |
| 67 | IGNITION | 20 | ABS *;
EHPAS *. |
| 68 | WIPER | 20 | Windshield wiper |
| 69 | ENGINE | 20 | To protect various circuits |
| 70 | IG SIG | 10 | Automatic wiper * |
| 71 | SAS 2 | 7.5 | Additional restraint system |
| 72 | – | – | – |
| 73 | – | – | – |
| 74 | SEAT WARM | 20 | – |
| 75 | D / LOCK 1 | 25 | Electric door lock |
| 76 | A / C | 10 | Air conditioner;
Heater control unit. |
| 77 | P / WIND L. | 30 | Power window (left) * |
| 78 | P / WIND R | 30 | Power window (right) * |
| 79 | BACK | 10 | Reversing lamps |
| 80 | SUN ROOF | 7.5 | Sunroof * |
| 81 | TAIL L | 7.5 | Tail lights (left);
Parking lights (left). |
| 82 | ILLUMI | 7.5 | Lighting |
| 83 | – | – | – |
| 84 | – | – | – |
| 85 | – | – | – |
| 86 | – | – | – |
| * Some models | |||
