Mazda 3 bk (1st generation) was produced in 2003, 2004, 2005, 2006, 2007 and 2008 with engines of 1.6 1.4 and 2.0 liters. During this time, the model has undergone restyling. In this article you will find a description of the fuses and relays of the Mazda 3 bk with block diagrams and their locations. Let’s highlight the cigarette lighter fuse.

The number of elements in the blocks and their purpose may vary and depend on the year of manufacture and equipment level of your Mazda 3.
Cabin block
The fuse and relay block in the Mazda 3 interior is located under the glove compartment.

To access, remove the protective cover (1), turn the screws (2) and the unit will lower down.
Access to the block

Photo – example

Scheme

Fuse description
| F37 | 15A D/LOCK 2 – Double locking system |
| F38 | 10A STOP LAMP/ HORN – Stop light fuse, horn |
| F39 | 10A HEAD HIGH L – High beam headlight (left) |
| F40 | 10A HEAD HIGH R – High beam headlight (right) |
| F41 | Reserve |
| F42 | Reserve |
| F43 | 15A CIGAR – Lighter |
| F44 | 7.5A RADIO – Audio system |
| F45 | 10A MIRROR – Fuse for the electric drive of rear-view mirrors |
| F46 | 7.5A TAILR – Rear position light (right), front position light (right), License plate lights |
| F47 | 10A OBD – Protection of various electrical circuits |
| F48 | Reserve |
| F49 | 20A TR – LOCK – Transmission |
| F50 | microcomputer power supply, main traffic light, turn signals and emergency alarm |
| F51 | main headlights, turn signals and hazard warning lights, heated rear window |
| F52 | 20A SUN ROOF – Roof ventilation hatch |
| F53 | 20A WASHER – Windshield wiper and washer |
| F54 | Reserve |
| F55 | 30A P/WIND R – Power window switch (right) |
| F56 | 30A P/WIND L – Power window switch (left) |
| F57 | 7.5A ALARM – Security alarm |
| F58 | 7.5A M/DEF – Electric exterior mirror heaters |
| F59 | Reserve |
| F60 | 15A HEAD LOW R – Low beam headlight (right), headlight range adjuster |
| F61 | 15A HEAD LOW L – Low beam headlight (left) |
| F62 | Reserve |
| F63 | Reserve |
| F64 | Reserve |
| F65 | 10A SAS – Airbag System |
| F66 | 10A METER – instrument panel, anti-theft system (immobilizer) |
| F67 | 20A IGNITION – Anti-lock braking system (ABS), traction control system (DSC), EHPAS |
| F68 | 20A WIPER – Windshield wiper and washer |
| F69 | 20A ENGINE – For protection of various electrical circuits |
| F70 | 10A IGSIG – Automatic wiper fuse, power window switch |
| F71 | Reserve |
| F72 | Reserve |
| F73 | Reserve |
| F74 | 20A SEAT WARM – Seat heaters |
| F75 | 25A D/LOCK 1 – Central electric lock |
| F76 | 10A AC – Air conditioning, heater control unit |
| F77 | 30A P/WIND L – Power window switch (left) |
| F78 | 30A P/WIND R – Power window switch (right) |
| F79 | 10A BACK – Reversing lights |
| F80 | 7.5A SUN ROOF – Roof ventilation hatch |
| F81 | 7.5A TAILL – rear position light (left), front position light (left) |
| F82 | 7.5A ILLUMI – Control panel backlight fuse |
| F83 | Reserve |
| F84 | Reserve |
| F85 | Reserve |
| F86 | Reserve |
The cigarette lighter is protected by fuse number 43 at 15A. One or more fuses may be installed in the block under the hood.
Block under the hood
Located in the left side of the engine compartment under the protective cover.

Scheme

Purpose of fuses
| F1 | 40A FAN – Cooling fan |
| F2 | 80A P/ST – EH PAS (power steering) |
| F3 | 40A P/ST – Protection of various electrical circuits |
| F4 | 40A HEAD – Headlight fuse |
| F6 | 60A GLOW – Glow plugs |
| F7 | 30A ABS1 – Anti-lock braking system (ABS), traction control system (DSC) |
| F8 | 20A ABS2 – Anti-lock braking system (ABS), traction control system (DSC) |
| F9 | 30A ENGINE – Protection of various electrical circuits |
| F10 | Reserve |
| F11 | 30A IGKEY1 – Ignition switch |
| F12 | 20A STARTER – Starter clutch |
| F13 | 30A IGKEY2 – Ignition switch |
| F14 | 30A GLOW1 – Glow plugs |
| F15 | 40A HEATER – Interior fan |
| F16 | 30A GLOW 2 – Glow plugs |
| F17 | 40A DEFOG – Electric rear window heater |
| F18 | 30A AUDIO – Audio system (cars equipped with BOSE audio system) |
| F19 | 10A ABSIG – Anti-lock braking system (ABS), traction control system (DSC) |
| F20 | 15A FOG – Front fog lights |
| F21 | 15A HORN – Sound signal |
| F22 | 10A DRL – Daytime Running Lights |
| F23 | 20A H/CLEAN – Headlight washer, fuel heater fuse |
| F24 | 15A F/PUMP – Fuel pump |
| F25 | 10A P/ST IG – Power Steering Fuse (PSF) |
| F26 | 10A A/C MAG – Air conditioner |
| F27 | 15A ALT/TCM 1GA – Generator/Anti-lock Braking System Control Unit |
| F28 | 10A GLOWSIG – Cigarette lighter |
| F29 | P.OUTLET – Power supply for additional outlets |
| F30 | 10A ENG+B – PCM unit, fuel additive dosing and supply control unit |
| F31 | 15A ROOM – Interior lighting ceiling lamps |
| F32 | 10A ENG BAR 4 – Oxygen concentration sensors |
| F33 | 10A ENG BAR 3 – Oxygen concentration sensors |
| F34 | 10A EGIINJ – Injector fuse |
| F35 | 10A ENG BAR 1 – Protection of various electrical circuits |
| F36 | ENG BAR 2 – PCM unit, fuel pump |
Relay designation
| R1 | PTF relay |
| R2 | Horn relay |
| R3 | Rear window heating relay |
| R4 | ETV chain |
| R5 | Fuel heating relay (diesel) |
| R6 | Fuel pump relay |
| R7 | Not used |
| R8 | Not used |
| R9 | Headlight Washer Relay |
| R10 | Fan relay |
| R11 | Air conditioner relay |
| R12 | Reserve |
| R13 | Starter relay |
| R14 | Engine control system relay. |