What Fuse to Check When Car Won’t Start?

If your car won’t start, one of the first things to check is the fuse.

Fuses are like mini circuit breakers that protect your car’s electrical system from overloads and surges.

They’re usually located in the engine compartment and labeled with numbers or letters.

When a fuse blows, it’s usually because something in your car is drawing too much current.

If you have a short circuit in your stereo wiring that causes the speaker wires to touch each other and become grounded, the fuse will blow.

Check the Battery

The battery is a very important part of the vehicle, so if it’s not working properly, you won’t be able to start your car.

Remove it from the car and connect it to an external power source.

If the power source doesn’t work, then your battery is dead and needs to be replaced as soon as possible.

Check the Starter

When your car won’t start, it’s tempting to check all the fuses. But before you do, take a moment and look at all the things that might be preventing your car from starting:

The starter is the most common cause of a car not starting.

If your car has an electric starter, check to see if it’s working by turning on the key and seeing if there’s any power going to it.

If you have a manual transmission or an older vehicle with a hydraulic clutch, then you’ll need to find out if there is fluid in the clutch master cylinder and if it’s moving freely

Check the Ignition switch

The ignition switch is a small lock that is turned to start your car. These locks are often located on the steering column, but can also be found elsewhere like under the dash or even on top of the steering wheel.

If your ignition switch is broken or stuck in place, it can make it impossible to start your car.

You’ll need to find out what’s wrong with the ignition switch and replace it if necessary.

Check the Fuse box

You should check the fuse box. This is usually located in the engine compartment and contains fuses for various electrical components of your car.

If you’re having trouble starting your car, it could mean that one of these fuses has blown and needs to be replaced.

Check the Brake lights

Make sure all the lights on your car are working, including the brake lights. If they are not, it may be a fuse issue.

You can check this by looking at the fuse panel under your hood or in the engine compartment of your vehicle and making sure that all fuses are in their correct place and not blown out.

If you find that one of them has blown out, replace it with a new one and try starting your vehicle again.

If this does not work, then you should seek professional help from an automotive technician.

Check the fuel pump

The fuel pump is usually located under the hood where you can see it. Look for a black wire with a plug on one end and a round cylinder on the other.

If this is your fuel pump, remove the plug from the wire and turn it over to see if there’s any dirt or debris inside of it.

If there is, try blowing into it to clear out any dust or other particles that might be blocking its function. If this doesn’t work, you’ll need to replace your fuel pump as soon as possible.

What to Do if You Have an Issue with Your Fuses?

There are a lot of things that can go wrong with your car, but if it won’t start, one of the first things you should check is your fuses.

If you’re not sure which fuse controls what part of your vehicle, you can find a diagram on the inside of your driver’s door or on the inside of your glove box.

If there’s a blown fuse, you’ll see it in the box it will look like a piece of wire sticking out instead of being flush with the rest of the fuse.

Replace it with one from your local auto parts store and try starting up again.


As you can see, there are many different things that can cause your car to not start.

If you have any doubts about what’s going on with your car, it’s always a good idea to take it to an auto shop so they can help you figure it out.

Steven Hatman
Steven Hatman

We break down every information into easy-to-understand articles that cover all the categories anyone who owns a car needs to know about, such as oil , brakes , tires and etc. Our car guide is free and updated regularly for you to use as a resource, not only when you have an issue with your car but even before buying a new or used car! We also give tips on what to look for in each category or part of your vehicle.