2020 Toyota Mirai Fuses and Fuse Box | Replacing a blown fuse
A dependable fuse box system and fuses are included in the 2020 Toyota Mirai to safeguard its electrical circuits. This system includes two main fuse box locations, which are usually located within the cabin and in the engine compartment, providing complete coverage. 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. Fuses are essential safety devices that stop the flow of electricity as needed to avoid harm and guarantee the proper operation of the car’s electrical systems. For the goal of maintaining and diagnosing electrical faults in the 2020 Toyota Mirai, Toyota’s unique hydrogen fuel cell vehicle, it is imperative to comprehend the position and function of the fuses and fuse boxes.
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.
- Turn the power switch off.
- Open the fuse box cover.
- Motor compartment
Push the tab in and lift the lid off.
- Driver’s side instrument panel
Remove the lid.
- Motor compartment
- Remove the fuse with the pull-out tool.
Only type A fuses can be removed using the pullout tool.
- Check if the fuse is blown.
- Normal fuse
- Blown fuse
Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.
After a fuse is replaced
- If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement.
- If the replaced fuse blows again, have the vehicle inspected by your Toyota dealer.
2023 Mirai Specs, Price, Features and Mileage (Brochure)
If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
WARNING
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To prevent system breakdowns and vehicle fireObserve the following precautions. Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
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Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse.
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Always use a genuine Toyota fuse or equivalent.
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Never replace a fuse with a wire, even as a temporary fix.
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Do not modify the fuses or fuse boxes.
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NOTICE
- Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toyota dealer as soon as possible.
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 owner’s manual to 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: 2020 Toyota Mirai Owner’s Manual