2021 Toyota Corolla Fuses and Fuse Box | How to fix a blown fuse
The fuses and fuse box of the 2021 Toyota Corolla are essential for protecting the electrical systems of the car. The fuse box, which is usually placed in an easily accessible spot, contains a number of fuses meant to keep electrical circuits from overloading and safeguard vital parts like electronics, lights, and power windows. Fuses are essential safety devices because they will blow in the case of a circuit overload or fault, stopping the flow of electricity and averting possible harm or fires. Maintaining and troubleshooting the electrical systems in the 2021 Corolla is crucial to guaranteeing both vehicle dependability and safety. This requires having a thorough understanding of the fuse box and its fuses.
2023 Toyota Corolla 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 nec-essary.
- Turn the engine switch off.
- Open the fuse box cover.
- Engine compartment
Push the tab in and lift the lid off. - Under the driver’s side instrument panel
Remove the lid.
- Engine 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 rat-ing. The amperage rating can be found on the fuse box lid.
2023 Toyota Corolla Specs, Price, Features, and Mileage (Brochure)
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.
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 in the 2021 Toyota Corolla serves as a protective component that houses fuses, preventing electrical circuits from overloading and protecting various electrical components within the vehicle.
The fuse box is typically located in one of two places: either under the driver’s side kick panel or under the hood, depending on the specific model and trim level.
Accessing the fuse box is typically done by removing a cover or panel secured with screws or clips, which is usually straightforward.
The fuses protect various electrical components such as lights, power windows, radio, air conditioning, and more.
You can visually inspect the fuses to check if the metal strip inside is intact. If it’s broken or appears melted, the fuse is likely blown.
If a fuse is blown, it should be replaced with a new one of the same amperage rating. Always consult the owner’s manual for the correct fuse replacement information.
No, you should never use a higher amperage fuse as a replacement, as it can lead to electrical system damage or even fires. Always use the recommended amperage rating.
Some 2021 Corolla models may come with spare fuses stored in the fuse box or included in the owner’s manual kit.
Fuses do not have a reset option. Once a fuse is blown, it needs to be replaced with a new one.
Common reasons include electrical system faults, overloads, short circuits, or faulty components like a malfunctioning light bulb or accessory.
Yes, replacing fuses is typically a straightforward DIY task that most owners can do themselves. Refer to the owner’s manual for guidance.
Typically, you’ll only need a pair of needle-nose pliers or a fuse puller, which may be provided in the fuse box or included in the owner’s manual kit.
It’s a good practice to label the fuses or refer to the fuse diagram in the owner’s manual to quickly identify which fuse corresponds to which component.
If you’re unable to identify the problematic fuse or resolve the issue, it’s advisable to consult a certified Toyota service technician for diagnosis and repair.
It’s not recommended to add extra fuses to the fuse box, as it can lead to electrical problems and potentially damage the vehicle’s wiring.
Useful Link
View Full PDF: Toyota Corolla 2021 User Manual
2023 Toyota Corolla Specs, Price, Features, and Mileage (Brochure)