How to check car fuses without pulling them out – Testing fuses with a Multimeter

How to check car fuses without pulling them out – Testing fuses with a Multimeter


Hello Guys and Girls it’s Lurgs here. Today how to test your Car Van or Motorcycle fuses without having to
remove them all so what you’ve got here is you’ve got a typical fuse box in your
Car or your Van and it’s full of fuses and no doubt if you’ve got a secondhand
vehicle you haven’t got a fuse box diagram so you’ve got no idea what they
are and if you’ve got something blown in your Car or Van something’s not working
you don’t want to have to be taking out every single fuse holding up to the
light and seeing if it’s blown or not. I mean you can do it like that but I
advise you to stop right there because what you can do is you can test the
fuses without having to remove them. Now this is what the fuses look like these
are all my spares all the good ones what you’re going to need is you’re going to
need a Multimeter and you can also have a set of pliers because you might need to
remove the dodgy one. So this is a typical fuse and you can see on the top
of the fuse you’ve got the two bits which you can
get the Mltimeter terminals on and that it completes the circuit so you can test
that without having to remove it. Great little tip. So on your Multimeter you
want to set it to the Ohm setting on the lowest setting mine goes down to 20 ohms
and that’s the setting that you want. Right so now we can start testing the
fuses in the fuse box. So at the moment it’s not reading anything because I’m not
touching anything so what I’m going to do now is just touch it on the 10 amp
and you’ve got a reading on there so that means it is working that fuse is
okay now apologies here I am NOT an electrician I don’t know anything about
electricity all I know it is when I’m in a room there is electricity So this is
testing the 15 amp one and that is working now what I’m going to do now is
test one which I know definitely doesn’t work because I’ve planted this, so this one is not working and Voila we’ve got no reading make sure
you’ve got a good connection on the back there on the metal terminals and we’ve
got no reading so now if we take this one out and then go old-school and just
hold it up to the light you can see this one is blown so that’s a really handy
tip instead of having to take out every single fuse which to be honest I’ve done
in the past, so I think that deserves a quick cup of tea! ‘Hey careful man there’s a beverage here huh’ When you’re working on the motor always have a nice cup of tea. So just to show you the fuse when it’s out just to
test a working fuse as you can see in the background the multimeter we’ve got
a reading on there this is a good fuse and just testing it on the top this is
basically just to show you how it works it’s a little bit clearer when it’s away
from the fuse box and this is the blown one which I’m just going to test for you
here just to prove that my theory works. Not that it’s a theory it’s just real and
as you can see no reading and just to double-check on those terminals no
reading so get yourself a multimeter and you won’t have to take out all of your
fuses and that is the end and if you found that useful please subscribe. I
really really would appreciate it and that is today’s life hack top tip cheers
guys and girls check you later

About the Author: Michael Flood

31 Comments

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  2. thanks for a useful video, especially the multimeter stuff, but unfortunately the standard fuses on my new type (2014+) Vivaro don't have holes in the exposed edge to access the metal bits. So I have to take the fuse out. But the good news is I've got the owners handbook with the list of fuses and their functions

  3. So which side is the load/hot side when your putting it back in?
    Which are related to the 12 volts/start with ignition? You have to try harder.
    I wouldn't recommend this video

  4. Can you get electrocuted using metal pliers while taking out fuses? And does it matter if you put the red or black probes on either metal piece of the fuse?

  5. Sorry but for those who need a bit extra instruction….. do you have to disconnect the battery before testing? I thought olms was for resistance only. How does resistance show the fuse is still good? Probably am confused as this is a brand new area for me. Perhaps you could explain just a bit more for the folks who don't get the basics as well as others. Thank you. Otherwise you've answered the question of whether to put the positive or negative test leads on their own negative or positive side of the fuse. From your instruction, it sounds like it does not matter which test lead goes on which side of the fuse. That helps as the less clear people wonder if certain items might have to be tested by placing each the test leads on a correspondingly particular side. Thanks again!

  6. Thanks for the video. U didn't really need the pliers because that little white clip thing next to your fuse box is a fuse removing tool 😁

  7. A meter when set to resistence sends out a small amount of electricity and monitors that electricity coming back in the neg probe. If you use resistence test Fluke strongly say you can damage meter if there’s current in the circuit already.

  8. You forgot to mention to disconnect the battery, as hooking an ohm meter to a live circuit can damage many meters. Other than that, good advise. Ohm meters are intended to be used on circuits with NO voltage.

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