You can also watch a video tutorial at the end of this article or on our YouTube channel.
Although the video is done on a different type of car, it should help to learn the basic principles on this matter.
What is the purpose of a car fuse?
It’s a protection measure against short-circuits and overheating in the car electric installation.
The car fuse is a deliberately weakened part of the installation so if a short-circuit or overheating happens, the fuse melts and all the damage is in that (the car installation and devices are protected).
Sure signs that you should check the car fuse
If any of the electric or electronic devices suddenly stop working without any visible reason (wipers, cabin ventilator, radio, etc) the fuse box is the first place to look. This is a standard procedure.
Always replace the burnt-out car fuse with one that has the proper amperage
Now, this part is very, very important!!!
Every car fuse has its own amperage marked with numbers (15 A, 30 A,35 A, etc). You’ll find this marking on the fuse itself.
It’s very important to replace the burnt-out fuse with one that has the same amperage. If you put a fuse with lower amperage it will burn out even if the system is OK.
However, if you put one with a larger amperage and the circuit is faulty, the fuse will not melt causing damage to the electric installation, or can even cause a fire!
Also, any kind of DIY replacements like copper wire, nails or other is not an option!
In case of emergency and you don’t have the proper replacement, always use a fuse with a lower amperage than needed (for example if the fuse is 25 A, use a 15 A and so on). The installation and devices will both have power for some time and still stay protected.
If the car fuse continues to burn out, check it out as soon as possible you have a problem!
If you have to replace the car fuse frequently, then you surely have a problem!
Check it out as soon as possible in order to avoid further damage. There is something wrong either with the installation or the devices.
How to change a car fuse step by step:
1.Turn the ignition off.
2.Find the car fuse box and open the panel
The box is mostly in an easy-to access-place (like one side of the steering column or under the hood), covered by a panel that you can open.
3.Look at the schematic on the cover panel
When you open the panel, on the inner side, you’ll see an engraved schematic. This schematic is a mirror image of the fuse box layout.
4.Find the blown fuse
Now, this is the main part. You’ll see lots of fuses. Your task is to find the one that’s blown.
There are two ways to do that:
First: using a test light or multi-meter.
Second: use the above-mentioned schematic (pictures on the fuse panel match the device that’s not working). For instance: if the horn isn’t working you’ll see a small icon of a horn)
5.Pull the burnt fuse outside the fuse box
You’ll find a little plastic clip inserted in the fuse box (almost all cars have one). Its purpose is to help pull out the burnt fuse. You can also use a pair of pliers.
6.Test or take a look at the fuse
Once you’ve pulled the fuse out, inspect it. If the metal thread inside has melted, you’ve found it. If you want and have the means make a double-check with the multi-meter.
7.Replace with a new fuse
Make sure you insert the car fuse tightly in the slot. If the fuse doesn’t have a good connection it can cause problems.
8.Turn the ignition on, see if it works