Automotive Fuses And Where They May Be Located

Automotive Fuses And Where They May Be Located.

The purpose of a fuse is so that it(the fuse) may go out rather than your wires burn by some short circit(or other electrical malfunction). A fuse will also make a “bridge” from one open wire to another open wire, when it is installed in it’s location in a fuse box. Your vehicle may have two fuse boxes, one will be under your hood connected to your battery. The fuse box will contain many fuses, some fuses may be bigger than others(prices may vary). Each fuse will have an individual purpose, if you still have the cover to your fuse box, there you can see a pictorial and description(legend or key). The second fuse box will also have a cover and will also have lots of fuses, its location will be inside your vehicle. It will be in one of two spots, under the dash by the pedals or on the side of the dash/driver side near the door.

Fuses come in different resistance’s(amps) that vary from 5A up to 35A, some even higher. The higher the number the ”stronger” the fuse will be, so it is important that you follow what the legend or keys says. If it calls for a 15A use a 15A and not a 30A, etc. A basic fuse will be made of plastic and metal, the plastic will cover the metal except for the prongs. The fuse prongs slide in place in a fuse box and they secure the fuse in the fuse box. On average fuses will have two prongs, but some fuses will be bigger and will have up to 3 or 4 prongs. The amperage of the fuse will be stamped or painted on the top of the fuse, if it doesn’t have an amperage it will have a part number(big fuse). You can write down the part number or take the blown fuse to the local automotive parts store to find it’s replacement easier.

A few vehicle manufacture’s will provide some type of fuse puller, if so eqquiped, it will be located on the fuse box under the cover. If your vehicle did not come with one or you lost it, you can use your hand or a needle-nose plier. Fuses just slide in and out of place, so hold the fuse by the top and pull out for fuse removal. For fuse installation, simply silde in place until it’s all the way down to the fuse box. Fuses will also be found in places other than your automobile, such as on stereo amplifiers, on stereo’s and on some small electronic device’s.

A bad or blown fuse will have its metal or coil ruptured. You can check on the top of your fuse and check and see if the metal strip or metal coil is damaged. If it is damaged or ruptured replace with a new fuse with the recommended ampreage. On the glass style fuse be sure to have the exact length as well as the recommended amperage.

Note: Some fuses will be different colors but they will serve the same purpose. If your vehicle is missing its cover(legend/key) you can check on your owners manual for fuse size and location. Some older model vehicle’s may have the old style fuse, instead of plastic, it will be of glass with a metal coil. It will be long and will have metal heads on the tips to make the “bridge” between wires when this style fuse is secured in place. You can even find some of these style fuses in automotive cell phone chargers(cigarette lighter-charger).

Sepcial Note: If both of your headlights are out you may have a blown fuse. If both of your brake lights(running lights) are out you may have a blown fuse. If your horn stopped working you may have a blown fuse. If your cigarette lighter stop working you may have a blown fuse. Other things that are connected through fuses: Your vehicle’s a.c., ignition, power windows, power mirrors, your front, side and rear lights, etc.

So before you take your vehicle to an automotive shop, check your fuse boxes for a blown fuse, you just may save a little money on shop costs.

Updated: May 15, 2011 — 8:09 pm

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