Mazda 3 BL (2010 – 2013) Fuse Box Location & Diagrams
The Mazda 3 BL (2010–2013) features multiple fuse boxes that protect essential electrical systems and components. Knowing their locations and fuse assignments makes it easier to troubleshoot electrical issues. This blog provides clear fuse box locations and diagrams, helping Mazda 3 owners quickly and accurately identify the correct fuse for each circuit.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located on the left side of the dashboard behind the cover.
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | BOSE | 30 A | Bose Sound System-equipped model (Some models) 2012-2013: — |
| 2 | PSEAT | 30 A | Power seat (Some models) |
| 3 | P.WIND | 30 A | Power window |
| 4 | D LOCK | 25 A | Door lock motor |
| 5 | — | — | — |
| 6 | — | — | — |
| 7 | ESCL | 15 A — | Electronic steering lock (Some models) 2012-2013: — |
| 8 | SAS | 15 A | Air bag |
| 9 | — | — | — |
| 10 | HAZARD | 15 A | Hazard warning flashers 2012-2013: Hazard warning flashers, Turn signal lights |
| 11 | METER | 15 A | For protection of various circuits 2012-2013: Instrument cluster |
| 12 | OUTLET | 15 A | Accessory sockets |
| 13 | R WIPER | 15 A | Rear wiper (Some models) 2012-2013: Rear window wiper and washer (Some models) |
| 14 | CIGAR | 15 A | Lighter 2012-2013: Accessory sockets |
| 15 | — | — | — |
| 16 | HEATER | 10 A | Blower motor 2011-2013: Air conditioner |
| 17 | MIRROR | 10 A | Power control mirror |
| 18 | ST SIG | 10 A | Starter sig 2012-2013: Engine control system |
| 19 | — | — | — |
| 20 | AUDIO | 7.5 A | Audio system |
| 21 | M.DEF | 7.5 A | Mirror defroster (Some models) |
| 22 | AFS | 7.5 A | Adaptive Front-Lighting System (Some models) |
| 23 | — | — | — |
| 24 | ENG | 20 A | Engine control system |
| 25 | — | — | — |
| 26 | — | — | — |
| 27 | — | — | — |
| 28 | — | — | — |
| 29 | — | — | — |
| 30 | P.WIND | 25 A | Power window |
| 31 | — | — | — |
| 32 | F WIPER | 25 A | Windshield wiper and washer 2012-2013: Front window wiper and washer |
| 33 | — BOSE 2 | — 25 A | — 2012-2013: Bose Sound System-equipped model (Some models) |
| 34 | — | — | — |
Engine Compartment Fuse Box
Mazda 3 BL (2010 & 2011)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | FAN 2 | — 40A | — 2011: Cooling fan (Some models) |
| 2 | ENG MAIN | 40 A | Engine control system |
| 3 | BTN 1 | 50 A | For protection of various circuits |
| 4 | A/C MAG | 7.5 A | Air conditioner |
| 5 | H/L HI | 20 A | Headlight high beam |
| 6 | FOG | 15 A | Fog lights (Some models) |
| 7 | H/LWASH | — | — |
| 8 | SUNROOF | 15 A | Moonroof (Some models) |
| 9 | F.DEF RH | — | — |
| 10 | F.DEF LH | — | — |
| 11 | FAN 1 | 40 A | Cooling fan |
| 12 | ROOM | 15 A | Interior lights |
| 13 | TCM | 15 A | TCM (Some models) |
| 14 | DSC | 20 A | Dynamic Stability Control system (Some models) |
| 15 | BTN 2 | 7.5 A | For protection of various circuits |
| 16 | AT PUMP | — | — |
| 17 | HEATER | 40 A | Heater 2011: Air conditioner |
| 18 | INJ | — 30A | — 2011: Injector (Some models) |
| 19 | R.DEF | 30 A | Rear window defroster |
| 20 | IGKEY 2 | 40 A | For protection of various circuits |
| 21 | IGKEY 1 | 40 A | For protection of various circuits |
| 22 | HORN | 15 A | Horn |
| 23 | STOP | 15 A | Brake lights |
| 24 | ENG+B | 10A | Engine control system |
| 25 | FUEL PUMP | 25 A | Fuel system |
| 26 | ABS | 40 A | ABS |
| 27 | SEAT WARM | 20 A | Seat warmer (Some models) |
| 28 | EH PAS | 80 A | Electro-Hydraulic Power Assist Steering |
| 29 | — | — | — |
| 30 | ABS IG | 7.5 A | ABS |
| 31 | — SWS | — 7.5 A | — 2011: Air bag |
| 32 | H/L LO RH | 15 A | Headlight low beam (RH) |
| 33 | H/L LO LH | 15 A | Headlight low beam (LH) |
| 34 | ILLUM | 7.5 A | Dashboard illumination |
| 35 | TAIL | 15 A | Tail lamp |
| 36 | ENG INJ | 15 A | Engine control system |
| 37 | ENG BAR | 15 A | PCM |
| 38 | ENG BAR 2 | 20 A | PCM |
| 39 | ETV | 15 A | Electric throttle valve |
Mazda 3 BL (2012 & 2013)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | DC DC (SKYACTIV-G 2.0) | — | — |
| 1 | FAN 2 (MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5) | 40 A | Cooling fan (Some models) |
| 2 | ENG MAIN | 40 A | Engine control system |
| 3 | BTN 1 | 50 A | For protection of various circuits |
| 4 | A/CMAG | 7.5 A | Air conditioner |
| 5 | H/L HI | 20 A | Headlight high beam |
| 6 | FOG | 15 A | Fog lights (Some models) |
| 7 | H/L WASH | — | — |
| 8 | SUNROOF | 15 A | Moonroof (Some models) |
| 9 | HEATER (SKYACTIV-G 2.0) | 40 A | Air conditioner |
| 9 | F.DEF RH (MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5) | — | — |
| 10 | EVVT (SKYACTIV-G 2.0) | 20 A | Engine control system |
| 10 | F.DEF LH (MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5) | — | — |
| 11 | FAN 1 | 40 A | Cooling fan (Some models) |
| 12 | ROOM | 15 A | Overhead lights |
| 13 | TCM | 15 A | Transaxle control system (Some models) |
| 14 | DSC | 20 A | Dynamic Stability Control system (Some models) |
| 15 | BTN 2 | 7.5 A | For protection of various circuits |
| 16 | AT PUMP | — | — |
| 17 | PTC (SKYACTIV-G 2.0) | — | — |
| 17 | HEATER (MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5) | 40 A | Air conditioner |
| 18 | INJ | 30 A | Engine control system (Some models) |
| 19 | R.DEF | 30 A | Rear window defroster |
| 20 | IGKEY 2 | 40 A | For protection of various circuits |
| 21 | IGKEY 1 | 40 A | For protection of various circuits |
| 22 | HORN | 15 A | Horn |
| 23 | STOP | 15 A | Brake lights |
| 24 | ENG+B | 10A | Engine control system |
| 25 | FUEL PUMP | 25 A | Fuel system |
| 26 | ABS | 40 A | ABS |
| 27 | SEAT WARM | 20 A | Seat warmer (Some models) |
| 28 | EH PAS | 80 A | Power assist steering |
| 29 | — | — | — |
| 30 | ABS IG | 7.5 A | ABS |
| 31 | SWS | 7.5 A | Air bag |
| 32 | H/L LO RH | 15 A | Headlight low beam (RH) |
| 33 | H/L LO LH | 15 A | Headlight low beam (LH) |
| 34 | ILLUM | 7.5 A | Instrument panel illumination |
| 35 | TAIL | 15 A | Taillights, Parking lights, License plate lights |
| 36 | ENG INJ | 15 A | Engine control system |
| 37 | ENG BAR | 15 A | Engine control system |
| 38 | ENG INJ (SKYACTIV-G 2.0) | 15 A | Engine control system |
| 38 | ENG BAR 2 (MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5) | 20 A | Engine control system |
| 39 | EHPAS IG (SKYACTIV-G 2.0) | — | — |
| 39 | ETV (MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5) | 15 A | Engine control system |
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