How is the Fuse Box used to safeguard a vehicle's electrical circuits and what should be done in the event of a fuse failure on Mazda 3?

A combination of fuses, circuit breakers, and fusible links protect the electrical circuits of the vehicle, the main fuse/relay panel of which is located in the engine compartment and the interior fuse/relay panel of which is located in the passenger compartment (2009 and earlier models have it below the passenger side of the instrument panel and 2010 and later models have it underneath the driver side). There are small, medium, and large fuses used in the fuse blocks with the same blade terminal design; the medium and large fuses may be removed by hand, but the small fuses must be removed with a plier or fuse-puller tool made of plastic. Whenever there is any electrical component failure, it is the first step to check the fuse and the most effective way of doing so is to check the presence of power on the exposed terminal tips of each fuse using a test light, where one side has power and the other side has no power then the fuse is blown and this can also be detected visually. It is also important to ensure that the blown fuses are replaced with the correct type because the different rating fuses might fit physically but still different as this will be the correct one to protect the respective electrical circuits, and the value in the amperage should be carved into the top of the fuse body. When a replacement fuse fails instantly, it must not be replaced until the fault is located and corrected as it is normally a short circuit due to a damaged wire. Also, there are circuits that have fusible links that provide protection against overcurrent, and which are found in a circuit that is not normally fused, or where the current can be very high, as in the connection between the alternator and the battery; the fusible link is designed to melt away should excessive current be applied to it, and then troubleshooting becomes necessary before installing another circuit.

Genuine Mazda 3 Fuse Box

Fuse Holder Box

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7 Fuse Boxes found

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Mazda 3 Fuse Box Part Number: BCKA-66-730
$28.64 MSRP: $38.19
You Save: $9.55 (26%)
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Product Specifications
- Other Name: Block, Fuse; Fuse Box, Fuse Holder
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Fuse & Relay Box Part Number: BBM6-66-760
$122.08 MSRP: $162.80
You Save: $40.72 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2011-2013 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Fuse & Relay Box Part Number: B62S-66-760
$197.70 MSRP: $263.65
You Save: $65.95 (26%)
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Product Specifications
- Other Name: Block, Main Fuse; Fuse & Relay Box
- Replaces: BHR1-66-760, BHR1-66-760A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Fuse & Relay Box Part Number: BCKA-66-760
$212.98 MSRP: $284.02
You Save: $71.04 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Block, Main Fuse; Fuse & Relay Box
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Fuse & Relay Box Part Number: BP4K-66-760H
$331.80 MSRP: $442.49
You Save: $110.69 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
- Replaces: BP4K-66-760A, BP4K-66-760B, BP4K-66-760G, BP4K-66-760D, BP4K-66-760F, BP4K-66-760C
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2009 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Mazda 3 Fuse & Relay Box Part Number: BFD2-66-760
Product Specifications
- Other Name: Block, Main Fuse
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2013 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Fuse & Relay Box Part Number: BBM5-66-760B
Product Specifications
- Other Name: Block, Main Fuse
- Replaces: BBM5-66-760A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS

Mazda 3 Fuse Box

Mazda 3 Fuse Box is a kind of electrical watchdog that prevents electrical short circuits and spikes before they damage the lights, audio equipment, and control units. Within this Fuse Box, small automotive fuses with a maximum of 32 volts, sometimes even 42 volts, are installed in labeled holes and melt as soon as current in a circuit becomes unsafe to provide controlled cutting of power within a minute. Contemporary Mazdas often use an integrated power module style Fuse Box which bundles dozens of blade fuses with a resettable circuit breaker, allowing high demand lines to be restored instead of replaced. Location also differs, with one of these units typically located on the engine compartment wall to carry heavy load parts and the other near the steering wheel to carry cabin parts so that drivers can easily find a blown fuse. Other designs incorporate an ignition off draw fuse which can be pulled when the vehicle is not going to be applied for weeks and this will save the battery. Previously constructed Mazda systems utilized less complex under-hood systems, whereas more modern all in one systems include breakers and additional capacity to add extra components such as powerful stereos or custom LED lighting, the central difference being the added capability. By having the amperage requirement, slot pattern and cost, you can select the correct replacement and keep your Mazda safe and sound regardless of whether you have all the extras fitted or with no extras on your Mazda 3.

Looking for Fuse Box with proven quality? Choose OEM Fuse Box. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda 3 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine 3 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.

Mazda 3 Fuse Box Parts and Q&A

Fuse & Relay Box
BBM6-66-760
Q: How is the Fuse Box used to safeguard a vehicle's electrical circuits and what should be done in the event of a fuse failure on Mazda 3?
A:
A combination of fuses, circuit breakers, and fusible links protect the electrical circuits of the vehicle, the main fuse/relay panel of which is located in the engine compartment and the interior fuse/relay panel of which is located in the passenger compartment (2009 and earlier models have it below the passenger side of the instrument panel and 2010 and later models have it underneath the driver side). There are small, medium, and large fuses used in the fuse blocks with the same blade terminal design; the medium and large fuses may be removed by hand, but the small fuses must be removed with a plier or fuse-puller tool made of plastic. Whenever there is any electrical component failure, it is the first step to check the fuse and the most effective way of doing so is to check the presence of power on the exposed terminal tips of each fuse using a test light, where one side has power and the other side has no power then the fuse is blown and this can also be detected visually. It is also important to ensure that the blown fuses are replaced with the correct type because the different rating fuses might fit physically but still different as this will be the correct one to protect the respective electrical circuits, and the value in the amperage should be carved into the top of the fuse body. When a replacement fuse fails instantly, it must not be replaced until the fault is located and corrected as it is normally a short circuit due to a damaged wire. Also, there are circuits that have fusible links that provide protection against overcurrent, and which are found in a circuit that is not normally fused, or where the current can be very high, as in the connection between the alternator and the battery; the fusible link is designed to melt away should excessive current be applied to it, and then troubleshooting becomes necessary before installing another circuit.