How to find broken wires

How to locate a break in a wire harness

That was the smartest continuity video I’ve ever saw thank you

[richardhill]

Running 6 years now and you are still teaching us, awsome tip, will be doing this on my eng harness this weekend. Thank you sir !!

[mikefusaro]

Been racking my brain for weeks trying to find the issue with my son’s 2016 Kia Soul high mount stop light and this was magic!!! Found the hidden break in the ground wire in 2 minutes!

[kenzpenz]

I am 78 years old and have worked on a lot of vehicles, but honestly that is the first time I have seen that tip with the thumb nail. Great tip indeed, yes you can teach an old dog new tricks. Just curious, what would cause those wires to break like that, it is stranded wire. I can see solid wires breaking but then again you don't see solid wires in vehicles. Thanks for sharing....Ken

[amish_hckr]

I know you said it's basic, but it's not for some of us, so thank you for sharing a comprehensive video of the basics - this was VERY helpful!

[angelinas.]

Absolutely a great tip for finding the break in a wire. Saves a ton of time and frustration. I don't know why I didn't think of doing this on my own. It's so simple! Thanks for sharing.

[plowhand]

Guys like this are getting harder and harder to find. Thanks for the enlightenment! 👍🇱🇷👏

[Spitfireseven]

That was a great, practical tip. You have the best meter, Fluke. That thumbnail tip was fabulous.

[jasonmesser]

Awesome trick using thumb nail to locate the break in the wire and way cheaper than one of those annoying devices that beeped until it locates the break. Thank you for this gem . I've watched so many videos where they over explain everything and I end up more confused than I was before their video.

[TorQue_WrenCh]

Since that tips is nice, and the voice who teaching is honest in giving his skill, i gave this video a like, and thank you to the man..

[dporrasxtremeLS]

This is one of the best automotive videos I have seen on You tube! I am having an electrical issue with my truck now, this is how I found your video. A thousand thank yous!!!

[ryanm]

A way more simple way of explaining it than any other video I’ve watched and makes a lot more sense too

[raylouis]

Thanks Rusty, for sharing your knowledge . especially the finger nail tip . although whole video was spot on. great for helping others save on the cost of those new expensive cables !

[jimmyjimmy]

Great bush mechanic tip. A solder joint would have been the icing on the cake but again great trick for an old dog like me. Keep up the great work. 👍🇦🇺

[ChrisMacri]

Now ive got to find the break in a door harness with almost no space to work. Amazing video! Never would have guessed this !!❤

[rodneybrowning]

i know you say its basics. but its good to see the little tricks from the guys in the field figuring stuff out. this is why i go to you tube, to get the other guys idea and maybe save time and learn some simple stuff. thanks for the thumb nail trick. been chasing a dead wire on my boat trailer. was about to just install a new harness. but now armed with a good way. i can hopefully save some money.

[ryanmoore]

Just came across this video for the first time, really helpful tip, as I am currently diagnosing some possible wiring harness failures and can't pinpoint the break based off of looks alone. Thank you for posting!

[AndTodaysProjectIs]

I don't even know why I continued to watch this video to get to the thumbnail part but damn I am glad that I did. I thought it was just a video on basic continuity but that thumbnail trick is some seriously valuable stuff! Thank you very much for posting that

[sheetstothewind]

Thanks for the tip. I`m retired from working as mechanic in new car dealer and truck lease company. Lotta broken wires on trucks. New stuff can have bad wires from the supplier too.

[jake-mvoi]

I like that thumbnail trick. I had a no crank problem with my XJ after I bought it and couldn't find the problem to save my life. Finally bought a FSM and traced it down to the wire between the clutch safety switch and the starter relay. I never did find the break. Was lazy and spliced in a new wire next to the connectors and ran it through the firewall... Ain't pretty, but it still works.