2021 Toyota Mirai Fuses and Fuse Box | How to fix a blown fuse
The advanced fuse and fuse box system of the 2021 Toyota Mirai is intended to safeguard its electrical circuits. This system includes two main fuse box locations to provide complete coverage; these are often located within the cabin and in the engine compartment. Different kinds of fuses, such as blade-type and tiny blade-type fuses, are used in these fuse boxes to protect particular electrical circuits against overloads and short circuits. These fuses serve as vital safety mechanisms, cutting off the flow of electricity as required to guard against harm and guarantee the proper operation of the car’s electrical systems. It’s crucial to comprehend the placement and function of fuses and fuse boxes in order to maintain and repair electrical faults in Toyota’s cutting-edge hydrogen fuel cell vehicle, the 2021 Toyota Mirai.
2023 Mirai Specs, Price, Features and Mileage (Brochure)
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.
Checking and replacing fuses
- Turn the power switch off.
- Open the fuse box cover.
- Fuel cell unit compartment: type A fuse box
Push the tabs in and lift the lid off.
- Fuel cell unit compartment: type B fuse box
Remove the fuel cell unit compartment cover push the tabs in and lift the lid off.
- Driver’s side instrument panel Push the tab in and remove the lid.
Make sure to push the tab in during removal or installation.
- Passenger’s side instrument panel
Remove the cover.
- Remove the footwell lights connector.
- Remove the lid.
Make sure to push the claw when removing/installing the lid.
- Trunk
Remove the luggage mat, and then remove the luggage under the tray.
- Push the tab in and lift the lid off.
- Fuel cell unit compartment: type A fuse box
- Remove the fuse with the pullout tool.
Only type A fuse can be removed using the pullout tool.
- Check if the fuse is blown.
- Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid. - Type C and D:
Contact your Toyota dealer. - Type A
- Normal fuse
- Blown fuse
- Type B
- Normal fuse
- Blown fuse
- Type C
- Normal fuse
- Blown fuse
- Type D
- Normal fuse
- Blown fuse
- Type A and B:
2023 Mirai Specs, Price, Features and Mileage (Brochure)
After a fuse is replaced
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When installing the lid, make sure that the tab is installed securely.
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If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement.
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If the replaced fuse blows again, have the vehicle inspected by your Toyota dealer.
FAQs
The fuse box serves as a protective component, housing electrical fuses that safeguard various electrical circuits in the vehicle from overloads or short circuits.
There are typically two main fuse box locations: one in the engine compartment and another inside the interior cabin.
The fuse box contains different types of fuses, including blade-type fuses and mini blade-type fuses, each designed for specific functions.
Fuses act as safety devices, interrupting the electrical flow when an overload or short circuit occurs to prevent damage to electrical components.
A blown fuse can be identified by a visible break or burnt-out filament inside the fuse. A healthy fuse should have a continuous filament.
It is not recommended to replace a blown fuse with one of a higher amperage rating, as this can lead to electrical system damage or even a fire.
Some Mirai models may include spare fuses stored within the fuse box or in a designated location.
The interior fuse box is often located inside the cabin, beneath the dashboard on the driver’s side, for easy access.
Yes, the owner’s manual typically includes a fuse map or diagram that provides information about the purpose of each fuse and its location.
Regularly inspect the fuses if you encounter electrical issues or as part of your routine vehicle maintenance. It’s a good practice to keep them in optimal condition.
The Mirai typically uses fuses rather than circuit breakers. Fuses are replaced when blown, and there’s no need to reset them.
While aftermarket fuses may be compatible, it’s recommended to use genuine or high-quality replacement fuses that match the specifications mentioned in the ensure proper protection.
If a newly replaced fuse continues to blow, it may indicate an underlying electrical issue. In such cases, it’s best to consult a professional technician for diagnosis and repair.
To access the engine compartment fuse box, simply open the vehicle’s hood and locate the fuse box cover. Remove the cover to access the fuses.
Useful Link
View Full PDF: 2021 Toyota Mirai Owner’s Manual