Bought an Auto Fuse Tester.. like a screwdriver, with a wire and crocodile clip, but how do you use it?

Question

There were no instructions on how to use it.. nothing on the box or inside.

It is like a screwdriver but has a pointy tip.  There is a bit at the top for a plug-in cable which has a crocodile clip on it.

Thanks if you can offer an answer.

Shane A · Accepted Answer

What you have is called a circuit tester.  Here is how you would use it to test your fuses.  Take the clip part at the end of the wire and clip it to something metal on the main part of your car.  Usually the door hinge works good, make sure you grind it in enough so the metal clip will touch metal and not just paint.  Turn your key on, then use the point on the fuses.  If you look close on your fuses you might see two little holes, poke your tester in each of the holes, it should light up on both.  If the fuse does not have a hole, then slide the tester along the side of the fuse until you can touch both prongs that stick out of the fuse.  If the light only comes on on one side, then that fuse is blown.

thieme · Answer

Fuse Tester

Anonymous · Answer

To be honest, I hate those screwdriver testers.
They are not totally safe or reliable.
You can buy multimeters now at very reasonable prices and you will get all the instructions.

? · Answer

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Bought an Auto Fuse Tester.. like a screwdriver, with a wire and crocodile clip, but how do you use it?

4 Answers