A familiar auto electrician showed an easy way to find a blown fuse without a multimeter
If any controls or devices (for example, headlights or a radio tape recorder) have stopped working in your car, then do not rush to immediately take serious measures to fix them. Perhaps a short circuit has occurred and one of the fuses has simply blown.
Automotive fuses are one of the most important elements in an electrical circuit that protect and protect all devices from short circuits. Therefore, if you are faced with such a problem, then first of all, you need to check exactly them.
Of course, the fastest and most reliable way to determine if a fuse has blown or not is to use a multimeter.
Everything is very simple here. We put the multimeter in the diode test mode, or in other words, in the dialing mode (in this case, the number one will light up on the display).
Then we press one probe to the first contact of the fuse, and the other probe is applied to the second contact. If the fuse is intact, you will hear a distinct squeak, which will be emitted by the multimeter (while you will see that the value on the display tends to zero). If the fuse is blown, then nothing will happen.
Well, everything is clear here. But how to check the fuse if you don't have a multimeter at hand? Not every car owner has this device, and even if it is, few people constantly carry it with them. And if the fuse breaks when you are on a long journey or somewhere on vacation outside the city, then what to do?
In this case, there is one very simple working method that a familiar auto electrician shared with me. By the way, they can check the integrity of the fuse even faster than with a multimeter.
And for this we need the most ordinary lighter with a button, which can be bought for a penny in any store.
First of all, you need to disassemble the lighter (this will take a couple of seconds) and remove the black button from it, which, when pressed, gives out a small charge of electric current.
And now everything is easier than ever! We pinch one contact of the fuse with our finger, and bring the wiring to the second contact and, pressing the button, apply a discharge to it. At the same time, if the fuse is intact, you will immediately feel it (believe me, you will not confuse these tactile sensations with anything). Well, how do you like this way?