In this video I run through my diagnostic process of "find the break" in a circuit. This is usually a pretty simple task of simple logically breaking down the diagram and coming up with a plan then executing that plan. Let's see what it could look like. -Enjoy!
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49 thoughts on “Finding a broken wire using logic”
  1. Avataaar/Circle Created with python_avatars Hola! Bill Malec says:

    Finding cats or… 🤔

  2. Avataaar/Circle Created with python_avatars Bismarck San Diego says:

    Question hopefully someone will see. O said you can buy a 3 day subscription to GM for a nominal fee. Cool. Can you download and/or print the schematics during that timeframe? Do they have a limit on how many you can download / print ? TIA

  3. Avataaar/Circle Created with python_avatars Ernie Livingston says:

    Your just too dam good !

  4. Avataaar/Circle Created with python_avatars toby dog says:

    As I moved around the dealer business for 44 years there may have been 10 techs I trusted with my cars. Eric, you are THE MAN. You have also cost me a lot of money in retirement buying the scan tools I need as I no longer have access to them for free.
    Thank you so much for what you do.

  5. Avataaar/Circle Created with python_avatars Robert Dion says:

    Good job sparky

  6. Avataaar/Circle Created with python_avatars Frank Keel says:

    Listing sucks

  7. Avataaar/Circle Created with python_avatars Richard Piscoya says:

    Excellent mechanic

  8. Avataaar/Circle Created with python_avatars Kbrnsr says:

    Me maw must be the saint of car mechanics

  9. Avataaar/Circle Created with python_avatars dropinbiking92 says:

    I miss my sisters E-Z bake oven. Good times as a kid. Thanks for the years of good tech advice.

  10. Avataaar/Circle Created with python_avatars Jancarlos Medina says:

    HI IHAVE A PROBLEM WITH MY ENVOY 2002 IT RUNS TURNS ON AND WHEN IM DRIVING MY CLUSTER TURN OFF AND THE CAR KEEPS RUNING CAN YOU HELP ME WITH IT I CHECK ALL THE GROUNDS AND NOTHING HAPEND?

  11. Avataaar/Circle Created with python_avatars Bert Cochran says:

    Scanner Danner got nothing on you man.

  12. Avataaar/Circle Created with python_avatars Peter Knuerr says:

    Great Find, open white wire, buried in the spaghettis of wiring pasta!

  13. Avataaar/Circle Created with python_avatars Mike Robbins says:

    Stuff like that is exactly why I have a trusted mechanic to take my vehicles to… Good job Eric O…..

  14. Avataaar/Circle Created with python_avatars joel Busch says:

    Those tires are so bald lol

  15. Avataaar/Circle Created with python_avatars TJ Slick says:

    Mr. O, I've got an 01 GMC that came from a Large tree company and their Jerrys butchered the wiring. (Go figure) I've been soldering, shrink tubing, taping and then coating the repairs with flex seal. Stuff is way better than liquid electrical tape!

  16. Avataaar/Circle Created with python_avatars Michael Knorr says:

    You colored them and they went in the oven and shrank.

  17. Avataaar/Circle Created with python_avatars Edward Robbins says:

    In addition to being a great teacher showing how to use process of elimination logic, I love your commentary! It's a great combination to have to be a successful channel. I am a low voltage security technician that works on many types of systems and I use the same process. Sometimes you need to just step back and look at the big picture to find your problem. Great video Erik!

  18. Avataaar/Circle Created with python_avatars Martin Kucic says:

    Good job man.
    You make it seem easy.

  19. Avataaar/Circle Created with python_avatars AngryDINGUS says:

    Sorry, I can't afford logic. We're just going to go ahead and replace the ECM, the PCM, the BCM, the Purge solenoid, 02 sensors, MAF, and juuuussst to be safe, we're go ahead and replace the head gasket and top off the wiper fluid.

  20. Avataaar/Circle Created with python_avatars Duane Deshotels says:

    Oh yeah ,
    Really like what you said about how you can find anything on web.
    If you pay for it. Been trying to find wiring schematics for my truck. It always says download for free. Until you click on it. LoL.

  21. Avataaar/Circle Created with python_avatars Duane Deshotels says:

    Your pretty cool. To the point , didn't ramble on for fifteen minutes , giving complete history of how it came to be. LoL .

  22. Avataaar/Circle Created with python_avatars Bruce Porter says:

    Thank you for your teaching you rock

  23. Avataaar/Circle Created with python_avatars Travis Smith says:

    Stupid curiosity, since a large number of common folk won't have the fancy tablet to turn the evap system on and off, would it be efficient to just do a continuity test between the two connectors?

  24. Avataaar/Circle Created with python_avatars Jose R says:

    Hav yet to find a mechanic such as yourself for this
    2016 Chevrolet Silverado 2500HD Duramax

  25. Avataaar/Circle Created with python_avatars Jose R says:

    Man O man
    I’ve purchased a truck an literally drove from one driveway to the next. That’s been about two months now an have yet drive the truck I purchased
    These emissions laws are killing me
    This 2016 Chevy Duramax just isn’t happy
    Engine light and def light are on intermittently…..😤😤🥴🥴

  26. Avataaar/Circle Created with python_avatars B Souza says:

    You are a great teacher 👨‍🔬 THANK YOU 😊

  27. Avataaar/Circle Created with python_avatars Doug Kubash says:

    Hey, I resemble that scumbag mechanic remark! haha!

  28. Avataaar/Circle Created with python_avatars George Mann Sr says:

    I will have you know I resemble a "Scumbag Mechanic " ! 🙂

  29. Avataaar/Circle Created with python_avatars Ryan says:

    I don't have a fancy scanner, nor the knowledge to utilize one, but a simple multimeter could've found the continuity break.

  30. Avataaar/Circle Created with python_avatars Paublus Americanus AMERICANUS says:

    Eric my question is what caused this car to not pass your states test? The spare tire not current? That would be really socialist inspired or the spare tire flat? Guess I will have to watch again to find out your state's silly rules probably put in force because of ruining cars with salt.

  31. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Quick question if the spare tire comes down and wouldnt it be a good idea to lube the unit to at least keep the unit working as it is.

  32. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Best path to the truth of the issue at hand seek and find and repair the problem test and prove your repairs

  33. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Yeah it sure would be fun

  34. Avataaar/Circle Created with python_avatars Jose Hernandez says:

    😃nice catch

  35. Avataaar/Circle Created with python_avatars fernando13e says:

    Excellent video!, However could you post the link for the 3, day subscription for GM vehicle diagram information?

  36. Avataaar/Circle Created with python_avatars 2tallB says:

    Re: "poking the wire" to test a shorter section, do you then have to use "liquid insulation" to repair the hole? I have used a drop of Gorilla glue for that.. Is that ok? Please say yes, because I can't find any other use for that stuff. lol

  37. Avataaar/Circle Created with python_avatars Jim Gerock says:

    Love all your videos! Years ago, I remember diagnosing an intermittent no start on a VW Rabbit that had the fixed upper seat belt anchor (It was a 2 door). There was a broken wire in the door jamb harness that would touch together at odd times. Another complaint was a thumping noise going over bumps. That was a broken rubber strap that was supposed to hold the jack up against the spare tire. “There’s your problem lady!”

  38. Avataaar/Circle Created with python_avatars Ben W says:

    Another great educational video by Mr O. Thanks. Enjoy the commentary

  39. Avataaar/Circle Created with python_avatars Joe Vreeland says:

    You followed my process… start at the non operating device/part and move toward the control/power supply. I like the quality of your repairs…. and the logic. Good on ya.

  40. Avataaar/Circle Created with python_avatars Alexandre Maximiliano de Lara says:

    Great Work!! Watching from Brazil and learning a lot

  41. Avataaar/Circle Created with python_avatars russ533mj says:

    Blazers are the gift that just keeps giving.

  42. Avataaar/Circle Created with python_avatars Swordof theLord says:

    Should the Mechanic charge for the diagram subscription on a per job basis or include the costs in his diagnostic labour rate?

  43. Avataaar/Circle Created with python_avatars Mobilemechman Tim says:

    Great tip on the hot fuel returning to tank!

  44. Avataaar/Circle Created with python_avatars raf says:

    I can just barely follow you, even though I an a long-time retired Tech, familiar with OBD2 systems. May I suggest that you take things a little more slowly for those not up to that level?

    Patience, and very extravagant explanation, as suggested in your son's vids, pertain here as well as there.

    All the best, RIBob

  45. Avataaar/Circle Created with python_avatars Mech40 says:

    Hey Eric, do you think it would have been much easier to use a Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit to find that broken wire along that section of loom running to the back of the truck?

  46. Avataaar/Circle Created with python_avatars Robert Appleyard says:

    Looks like they're going to need the money saved on the vent valve for new tires pretty darn quick.

  47. Avataaar/Circle Created with python_avatars jim cricket says:

    We all say our" sister had one" nice try brother

  48. Avataaar/Circle Created with python_avatars Rubbishcop says:

    Eric sell this bloke (customer) some new tyres (tires).

  49. Avataaar/Circle Created with python_avatars Moe Horowitz World says:

    My wife has a 95 blazer 4.3 we definitely have replaced a few items or I have over the years new shackles in the back brake lines and gas lines condenser and compressor but it all still runs pretty good everything works like it should I think they made him pretty good back then considering I live in the Rust Belt
    When she turns off the ignition and parks it it always smells like gas fumes at the back and I’m pretty sure it’s the cell annoyed vent but they say you have to drop the gas tank and I just don’t want to do that I don’t smell like gas for too long she just drives back-and-forth to work but 160,000

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