After its first appearance in 2003, the Mazda 3 was revised twice, taking into account current technologies. Second and third generation examples complement the original designs. With each update, the car's fuse diagram changed. The purpose of this component is to protect components, devices and the electrical network from overloads that can damage the vehicle.
A separate Mazda 3 fuse includes a plastic or ceramic housing that hides the contact group and the working element, which is destroyed by excessive current. Using a contact group, the device is connected to the network. Fuses eliminate the possibility of costly repairs in the event of a short circuit or vehicle fire. Fuse groups are marked in different colors to make it easier for the vehicle owner to replace failed elements. Before starting work, you need to study the decoding of each of the car's fuse boxes.
Mazda 3 fuses
Fuse blocks are installed in two places: in the space under the hood and in the interior of the car. Elements are marked depending on the maximum current flow. The first generation Mazda 3 cars have the following classification from lowest to highest:
Fuse color | Maximum current, A |
Grey | 2 |
Light brown | 5 |
Brown | 7,5 |
Red | 10 |
Light blue | 15 |
Yellow | 20 |
Light green | 30 |
Orange | 40 |
The interior fuse box of the Mazda 3 of the first generation contains 6 cables that allow you to connect wire harnesses (3 on each side).
The fuses, which are located under the hood, are responsible for the stable operation of the engine cooling fan, starter, ignition and other technically complex elements of the car. The interior unit contains devices that provide operation of the cigarette lighter, audio system, security alarm, seat heater and other comfort elements. For the convenience of car owners, a diagram of the location of fuses on the cover of each block is provided.
Removal and replacement instructions
It is worth saying that Mazda developers have done everything to make it extremely convenient for those who will operate the car to change consumables, including fuses. In order to get to the compartments there is no need to remove any components or systems.
Preparation
If a consumer fails, use the diagrams to find out in which block it is located. For example, the element responsible for the headlight washers in the Mazda 3 is installed in the engine compartment. And for the headlights and the cigarette lighter in the cabin. Further in the table we find that the headlight washer is number 9, similarly we determine the location of the elements protecting the headlights and the cigarette lighter.
Steps
If the element is placed in a compartment located in the engine compartment of the Mazda 3, then we proceed according to the following scheme.
Engine compartment
- Open the hood cover and fix it.
- Finding the location of the block. It's not difficult; it's located on the right. In the photo there is a red arrow pointing to it.
- Next, we find the lever located at the back.
- Pull it and open the lid. There is a diagram on the reverse side.
- We find in it the element we are interested in, a headlight washer or another.
- Let's take it out.
- We check visually. If the fuse is blown, there may be traces of melting on it or a burnt-out spiral may be visible. To determine more precisely, you can use a tester.
- Next, instead of the blown one, we install a new fuse of the same rating.
Decoding the engine compartment section
- If we have problems with the fuse located in the passenger compartment of the Mazda 3, then we need to find where it is located.
- Next, remove the holder (made of plastic).
- We remove the cover itself.
- Now you need to press out the holders that secure the compartment cover.
- Remove the cover.
- We find two latches with the help of which the block is secured.
- Let's lower it down.
- Next, we do everything as in the engine compartment.
Interpretation of the salon section
Where are the fuses located?
In first-generation Mazda 3 cars (2003-2009), one unit is located under the hood, the second in the cabin. A special feature of the second generation vehicle (2009-2013) is the presence of a fuse box and a relay box, which are located under the hood, and another one is located in the cabin. When developing the third generation cars (2013-2018), engineers returned to the scheme implemented in the original version of the Mazda 3.
In cars manufactured before 2009, the fuse box in the passenger compartment can be found directly under the dashboard. While in the cabin, you should pay attention to the area on the left side of the steering column. In the next generation of cars, the fuses were located under the glove box, hidden by a massive plastic casing. In order to open the interior unit, you need to press the small transparent latch.
Owners of the latest version of the Mazda 3 need to go down to the area located to the side of the driver's feet. The plastic cover immediately comes into view, which hides the fuses.
The current generation car is equipped with a fuse box on the right side of the driver (rib area). It is securely hidden by a casing; the design includes brackets and plugs for fastening. Having opened the block, you can study all the presented fuse designations.
The second generation Mazda 3 hides fuses in approximately the same place as the latest car models. It is worth noting the smaller size of the casing. The plug is located on the back side, which makes access to the fuses somewhat difficult. In terms of the location of this block, there are no differences from the first generation machines. Before working on fuses or any other electrical components, it is important to turn off the ignition.
For 1st generation
The first generation (1rd generation) of the machine was equipped with two relay and fuse blocks.
On Mazda 3 cars produced in 2003, 2004, 2005, 2006, 2007, 2008 and 2009, these blocks are located under the hood and in the interior of the car.
Layout of blocks in the machine
To replace a blown cigarette lighter relay, you need to open the interior fuse box, and to repair the low beam, the fuses are under the hood.
Let's look at where each of the blocks is located and analyze all the fuse circuits.
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Decoding Mazda 3 fuses
The car fuse diagram is important information, in case of damage to one or another fuse, you need to know the location of the fuses. The engine compartment block is represented by fuses Fc 1 to 36.
Fuse No. 1 is responsible for the electric fan and cooling. Number 2 – electric power steering pump. No. 3 – alarm signals and window washing, central locking and dimensions. No. 4 - headlights, No. 5 - RTS circuit, 7, 8, 19 - ABS, directional stability system, 9 - power circuit. Sensors 11 and 12 – ignition and starter relay. Number 13 - connects when ignition and disconnects when the starter is turned off (unlike 11). 15 - climate control, 17 - for heated rear windows. F20 - fog lights. Sound signals - No. 21. No. 23 – headlight washer fuse. Number 24 – fuel pump, 26 – air conditioning. Number 27 is a generator. Engine control - No. 30. No. 31 - interior lighting. Numbers 32 to 36 are responsible for engine control.
In the cabin there are sensors from 37 to 86:
- D/LOCK 2 – central locking;
- 39-40 — high beam;
- 43 – cigarette lighter;
- 44 – audio;
- 45 – mirrors;
- 46 – right dimensions;
- 47 – connectors for diagnostics;
- 49 – lock chain;
- 50 – control of electrical devices;
- 51 – turn signals and electric alarm;
- 52 — sunroof;
- 53 — glass washing;
- 55-56 – glass lifting;
- 57 – security system;
- 58 – heating;
- 60-61 – low beam;
- 65 – airbag;
- 67 – stability, steering;
- 68 – glass cleaning;
- 69 – engine control;
- 70 – glass cleaner;
- 74 – seat heating system;
- 75 – central lock;
- 76 – air conditioning compressor;
- 77-78 – glass lifting;
- 79 – light during reversing;
- 80 - roof hatch;
- 81 – left dimensions;
- 82 – fog lighting, dashboard lighting;
The missing numbers are backup safety elements. These also include fuses F83 - F86. In the interior mounting block there are relays No. 23 - low beam, 24 - automatic transmission selector, 25, 26 - speed of glass cleaning, 27, 28 - high beam and dimensions, respectively. Central locking relay: 31-32. The relay under the hood can be deciphered if you know the translation from English. For example: FOG - fog lights, H/CLEAN - headlight washing, HEATER - heating, etc.
Block in the Mazda 3 BL interior
It is located on the left side of the instrument panel behind the protective cover.
Photo example
Scheme
Description
1 | 30A BOSE Model with Bose audio system |
2 | 30A PSEAT Power Seat |
3 | 30A P.WIND Glass Lifter |
4 | 25A D LOCK Door lock motor |
5 | — |
6 | — |
7 | 15A ESCL Electric steering wheel lock |
8 | 15A SAS Airbag system |
9 | Reserve |
10 | 15A HAZARD Hazard warning lamps |
11 | 15A METER For protection of various circuits |
12 | 15A OUTLET Sockets for powering additional accessories |
13 | 15A R WIPER Rear wiper |
14 | 15A CIGAR Cigarette lighter |
15 | Reserve |
16 | 10A HEATER Heating and ventilation fan motor |
17 | 10A MIRROR Exterior mirror gear motors |
18 | 10A ST SIG Starter signal |
19 | Reserve |
20 | 7.5A AUDIO Audio system |
21 | 7.5A M.DEF Heated exterior mirrors |
22 | 7.5A AFS Adaptive Side Cornering Light System |
23 | Reserve |
24 | 20A ENG Engine control system |
25 | Reserve |
26 | Reserve |
27 | Reserve |
28 | Reserve |
29 | Reserve |
30 | 25A P. WIND Window lifter |
31 | Reserve |
32 | 25A F WIPER Windshield wiper and washer |
33 | Reserve |
34 | Reserve |
For the front cigarette lighter there is fuse number 14 at 15A, A for additional sockets 12.
Procedure for replacing fuses
If necessary, the owner himself can replace failed fuse blocks (for example, headlight washers, climate control, etc.). It is enough to know the layout of the sensors and the functions that they mean (deciphering the diagram). Mazda fuses are replaced in the following order:
- The ignition must be turned off;
- Disconnect the battery from the power supply;
- Dismantle the outer protective cover of the fuse box;
- Deactivate the pads and harnesses that are connected to the fuse block;
- Use a screwdriver to unscrew the fastening screws;
- Using the latch, remove the device;
- Install a new fuse and repeat the procedure in reverse order.
Bottom line
Thus, the fuse box is an important part of the vehicle control mechanism, thanks to which its operation is monitored and the electrical circuit is protected from overheating. The relay has the function of closing and opening the network in case of excess load on certain sections of the circuit. Mazda 3 has two sets of fuse blocks and one relay. Fuse blocks are located under the hood of the car, as well as inside its interior.
Fuse box under the hood
Location of the block under the hood
Fuse box on the right side of the engine with the cover open
Open fuse box
Open fuse box
Engine fuse block diagram with symbols
Fuse | Terminal | Current (A) | Purpose |
F1 | FAN | 40A | Cooling Fan |
F2 | P/ST | 80A | EH PAS (Power Steering) |
F3 | BTN | 40A | Protection of various electrical circuits |
F4 | HEAD | 40A | Mazda3 headlight fuse |
F6 | GLOW | 60A | Glow plugs |
F7 | ABS1 | 30A | Anti-lock braking system (ABS), anti-skid system (DSC) |
F8 | ABS2 | 20A | Anti-lock braking system (ABS), anti-skid system (DSC) |
F9 | ENGINE | 30A | Protection of various electrical circuits |
F10 | — | — | Not used |
F11 | IGKEY1 | 30A | Ignition switch |
F12 | STARTER | 20A | Starter clutch |
F13 | IGKEY2 | 30A | Ignition switch |
F14 | GLOW1 | 30A | Glow plugs |
F15 | HEATER | 40A | Interior fan |
F16 | GLOW 2 | 30A | Glow plugs |
F17 | DEFOG | 40A | Electric rear window defroster |
F18 | AUDIO | 30A | Audio system (vehicles equipped with BOSE audio system) |
F19 | ABSIG | 10A | Anti-lock braking system (ABS), anti-skid system (DSC) |
F20 | FOG | 15A | Front fog lights |
F21 | HORN | 15A | Sound signal |
F22 | DRL | 10A | Daylighting |
F23 | H/CLEAN | 20A | Headlight washer fuse. fuel heater Mazda-3 |
F24 | F/PUMP | 15A | Fuel pump |
F25 | P/ST IG | 10A | Power steering fuse |
F26 | A/C MAG | 10A | Air conditioner |
F27 | ALT/TCM 1GA | 15A | Generator/Traction Control Unit |
F28 | GLOWSIG | 10A | Cigarette lighter |
F29 | P.OUTLET | — | — |
F30 | ENG+B | 10A | PCM unit, fuel additive dosing and supply control unit |
F31 | ROOM | 15A | Interior lamps |
F32 | ENG BAR 4 | 10A | Oxygen concentration sensors |
F33 | ENG BAR 3 | 10A | Oxygen concentration sensors |
F34 | EGIINJ | 10A | Injector fuse |
F35 | ENG BAR 1 | 10A | Protection of various electrical circuits |
F36 | ENG BAR 2 | 10A | PCM, fuel pump |
Relay | |
Location | Designation |
R1 | PTF relay |
R2 | horn relay |
R3 | rear window defroster 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. |