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How to Change a Car’s Fuses

Learning how to change a car’s fuses is one of the most important and basic auto repairs that are out there, and this is something that anyone can learn to do. There are many things that can go wrong with a car when a fuse is blown, and knowing how to find and replace the blown fuse can turn a bad situation back around in no time at all. For instance, a blown fuse can cause you to lose power to the headlights, which puts you in a terrible bind driving after dark.

Be Prepared for Blown Fuses

The first thing that is worth mentioning is that it is always good to be prepared and to keep an extra set of fuses on hand in the car for just this type of emergency. This can also be included within any family car safety checks. They are very cheap and can be had at any auto parts store. Grab a spare set and keep them in the glove compartment. Of course, if you’ve already blown a fuse and now you’re just trying to figure out which one, this is advice to apply for next time so that you’re not caught in a bind if this sort of thing happens again.

Importance of Auto Fuses

Newer model vehicles are equipped with very complex electrical systems which lean heavily on fuses for their proper operation. Some cars have two or even three fuse boxes, something that is surprising to many people when they pop the hood trying to find that the one that blew. In spite of this fact, it is still very simple to locate a bad fuse and get it changed out. There is no reason to guess blindly or stress out over these things when you have everything you need to find what you are looking for.

Finding a Blown Fuse

The simplest way to find a blown fuse is to use your owner’s manual. In that manual there will be a chart detailing what each fuse represents and the component or components that each one powers. If this chart is nowhere to be found or if you lack a manual altogether, you can use a voltmeter or test light. Alternately, you can also check online to try to find a chart for your make and model. Locating the right one is really the hardest part, and it is really not all that hard. You could even do a visual inspection and look for the one missing its charge on one side.

Replacing a Faulty Fuse

Once the faulty fuse is located, it is time to replace it. First of all, we need to make sure that we replace the old one with a replacement that has the right amperage. The trouble with using too high amperage is that it creates the possibility of electrical fire in the car and other dangers. Pay attention to what you are pulling and to the chart in the owner’s manual and this danger is easy to avoid.

There are three different color fuses, with the largest ones being color coded differently than the other two sizes, so car owners need to be aware of what they are buying and make sure they get the right one. Pulling the old one and putting in the new one are very simple once you have determined the location of the faulty fuse and the correct replacement amperage. If there is a conflict between the installed fuse and the owner’s manual, go with the manual. Just because a fuse was installed doesn’t mean it was right. Learn how to change car fuses and prevent fires and other issues leading to car insurance claims.


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