A Comprehensive Guide For Checking And Replacing Fuses

Your vehicle’s fuses might be minute, but they’re immensely important and play a vital role in many vehicular functions. From time to time, you’ll need to check and replace your fuses. Within this guide, you’ll learn precisely what is needed, how to check the fuses and how to replace them.

What You’ll Need

The good news is that checking the fuses is truly simplistic. It is a DIY procedure, which everyone can accomplish, regardless of skill and experience. Below, you’ll discover a list of tools and supplies that you’ll want to acquire, before getting started.

  • A flashlight
  • Flathead screwdriver, the smaller the better
  • Needle nose pliers or a fuse pulling tool
  • A multi-meter or volt meter
  • Possibly a box of replacement fuses


In most cases, an electronic feature of your vehicle will malfunction and cease to work, when your fuse blows or goes bad. For instance, your electronic windows may stop working and the source of the problem will not be visible. The good news is that replacing the fuses is tremendously easier than attempting to fix a wiring problem.

Visual Inspection

First and foremost, you’ll want to locate your vehicle’s fuse box. Consulting your owner’s manual is generally a good idea. Typically, the box will be located near the driver’s side door or it may be underneath your dash. Once you’ve found the fuses and have shut the vehicle off, you’ll want to grab your needle nose pliers. Be sure to precisely check each and every fuse one at a time. This will help you avoid pulling out a fuse and forgetting its original location. Spotting a faulty fuse shouldn’t be overly difficult, but knowing what to look for will depend on the specific type of fuses your vehicle utilizes. If you have fuses, which appear to have teeth, you should check the metal connector in between the teeth. If it has broken, you’ll need to replace the fuse. If you’re dealing with glass fuses, you’ll immediately notice that the fuse seems to have smoke running through the center. This is a sure sign that the fuse has blown and needs to be replaced.

Testing Electrically

If a problem is not visible, you may want to test it with the multi-meter. If you’ve already pulled out the fuse, you should switch the meter to the Ohms mode. Touch the red prong to one tooth and the black prong to the other. If the fuse is working perfectly, it’ll display some type of reading and vice versa. It is also possible to test the fuse with your multi-meter, without removing it from its harness. Switch the meter to Volts and turn the ignition switch on. Place the black prong on a good ground and use the red prong to touch one of the fuse’s metal squares. You should receive a reading of 12 to 14 volts. This confirms that the fuse is working properly.

Replacing The Fuse

If you’ve found a fuse, which must be replaced, you’ll first need to acquire a suitable replacement. Fuses can be purchased individually or you can acquire a whole box of mixed fuses. Simply remove the old fuse and replace it with a suitable replacement. The process couldn’t be easier and you’ll be able to complete it within a matter of seconds!

-Henry Avera

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