How To Find Electrical Shorts
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- Опубліковано 8 жов 2024
- Auto mechanic for the last 44 years, Scotty Kilmer, shows how to find and repair electrical shorts in your car. Electrical short location, inspection, diagnosis, troubleshooting and testing explained.
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4. Common Sense
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⬇️Things used in this video:
1. Circuit Tester: amzn.to/2jGzITr
2. Wrench Set: amzn.to/2kmBaOU
3. Needle Nose Plier: amzn.to/2ic4Olq
4. Common Sense
5. Full HD Camera: amzn.to/2AvoEk7
6. My computer for editing / uploading: amzn.to/2i2sKYz
7. Video editing software: amzn.to/2jv5Fhf
8. Thumbnail software: amzn.to/2k7tz6C
🛠Check out my Garage to see what I use every day and highly recommend:
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Scotty Kilmer hey Scott what is the best way to fix a short on the back tail lights? I have a 2013 Buick regal 2.4 liter
I found a short in btn circuit and I found it was in the room circuit but how do you find the actual short
Hi Scotty 👋
Took every fuse out and every Relay and the light stayed on.
What next?
Wow....a young Scotty Kilmer!
My thoughts exactly!
Lol said tha same thing
Thanku very much Scotty! God bless you very very much!
Dude I'm stoked he's been here in my lifetime. National Treasure.
Yeah! He is funnier now.
It doesnt matter what anybody says Scotty Kilmer is the best mechanic on UA-cam point blank
woah might be 2 years late but as of that comment, u got a heart from Scotty when this vid was 12 years old
I've never actually seen anyone say that Scotty kilmer wasn't the best mechanic on UA-cam!
I agree!! Scotty Rocks!!!
This is a vintage UA-cam...amazing
CD's and a brick phone! But STILL useful as hell!
CD's and a brick phone! But STILL useful as hell!
This guy is so consistent. Found a winning recipe for a video and ran with it for nearly 2 decades on UA-cam. THANK YOU SCOTTY
Definitely a blast from the past on this video, wonderful job staying as productive and passionate about your work throughout time.
finding shorts like that is always a load of fun. since it runs fine once started, I would assume a problem in the starting system itself, like a bad starter or switch.
Hey Scotty 👋
please help scotty i have a 2009 malibu 3.5 v6 i jst tried this and the light stays on
My car starts up fine sometimes
As i drive the stereo shuts off as well for the reverse/drive light on shifter
BUT WHEN the stereo and shifter turns on the car does not start only dummy lights turn on
Scotty, you've done it again.
Found the short in my car and working on it now.
Thanks, always a great answer to a car problem!!
I had no idea this guy is one of YT’s OGs! Scotty Kilmer has been here since the beginning!
Luvin this retro vibe. The phone and cigarette lighter. The good ol days.
You just saved me a few hundred dollars and lots of stress Scotty!. Used your method today, and found the blown fuse. Thankyou, your videos are invaluable.
Of course, then you can measure voltage the same way, of If you really know how to use the meter, you can measure amp draw which is much more accurate (but, a bit more complicated and is best using a meter and a low amp clamping probe. Scotty Kilmer
Amazing!!!!, one of the greates video of all time
I reviewed your video this morning, went to the auto parts store and purchased a tester for 4 bucks. Came home and followed your steps and traced the short to the AM/Radio. Drove to the stereo shop and bought a new radio.....done.
Thanks my friend.
@onepoeticromancer that's a main fuse that powers a lot of stuff. Start by removing the fuse panel and tracing the wires coming out of that fuse, OR see what stuff doesn't work when you unplug that fuse and trace it backwards from what doesn't work. Scotty
OMG I cannot believe this Scotty guy has been making videos since 2007 or so
Cars N Stuff yea, I am aware of it. I saw him on tv a few times back then.
2023@@StopFear
Theres literally no one like Scotty! Dudes a legend!
It’s 2021...and I needed this video 🥲
@Light7Echo One, make sure you are using the correct bulb. If it's correct, then either you have a ground wire problem at that socket, or the socket itself needs replacing from corrosion or from melting (see a lot melting lately with cheap manufacturing. ) Scotty
Phones have come a long way in 10 years.
I have seen technology that is beyond before cell phones and color tv and any spaceship or rocket.
It's a Nokia 😀😀😀
@surpremeclientele actually in most cars it's pretty easy to get em out and unplug em, especially late model cars that just snap out and then 4 screws remove the whole thing.
That's right, either you have a BIG short, and use my test in this video, OR the cables are shorting out or are just not tight enough coming off the battery. Scotty Kilmer
Thank you Scottie! You video's have increased my understand of fixing videos a LOT and as well as fixing my own! You have definitely gotten my attention, thank you!
If you like my car help, be sure to watch my live car talk show every Saturday morning at 10 AM CST on UA-cam. I answer your car questions LIVE there. Just check it out at How To Ask A Live Mechanic Car Questions Free On UA-cam . And remember, every TUESDAY I upload a new video, so don’t miss them.
I’m 17 I’m a noob to this car game! Thanks your vids are helpful
Wow...... 13 yrs ago !!
This popped up today..
Made my day...
@Sublime2O god, I haven't used a book to repair cars in decades. I use alldata.com for my information, and IATN.net for fellow pro mechanic advice. Scotty
@fastvpbt1 rear disc brakes adjust themselves. As for the handbrake, there are generally threaded adjusters, some are by the handbrake handle in the car, some are under the car where the two cables split off in the back. Scotty
Young Scotty is daddy af
Lol
Yeah, he's a cool look'n dude.
😂😂😂
@jerseyboyy1 Either the ECM or the wiring connections to it. Remove the connections and look with a flashlight to see if any connections are bent or are green from corrosion first. Scotty
depends where the melted part is. You can splice in new wire portions if enough good wire is left. But if not, make new connections for each end and change the entire wire
@kvicks916 generally, that's a weak battery, bad connections on the battery, OR the starter going out. All toyota starters end up clicking when they go out. Scotty
all auto parts stores sell me for a few bucks
@Thumbseyyy depends where the short is, there is no "battery fuse" per se. You pull the shorted section fuse out, then the light goes out
replace the switch on the driver's door
@SuperPimpProductions Pulsating light is often computers or burglar alarms. They will drain a little , that is normal on many newer cars. Scotty
THANKS FOR YOUR VIDEOS GOD BLESS YOU
If you wish to ask me car questions, I am switching my questions and answers to my google+ community “Auto Repair With Scotty Kilmer”. So please, if you want your questions answered, go to this link plus.google.com/u/0/communities/110758243155230074828 and join my community. You can then ask your question there and I answer them personally. You can also attend my weekly Saturday morning Live car talk events where I answer your questions live. . Just check it out at How To Ask A Live Mechanic Car Questions Free On UA-cam
And remember, every Tuesday, I upload a new video on youtube, don’t miss them.
THANKS
What a gem.
First off, what kind of mechanic doesn’t know the difference between a short circuit and a parasitic drain?
So I have an electrical short. The test light method you use in this video is useless, because the shorted circuit has been disconnected at the fuse panel by a blown fuse, which is the typical sign of a short circuit. I use my multimeter and see that the circuit is grounded right out, which is why the fuse blows. Now my problem is, where in that circuit is the short? Perhaps I should replace the fuse with a wire, then see where the wiring catches fire. Or maybe you have some actual information on locating and repairing short circuits.
Having a bad day
Well I’m no expert but I’d hazard to guess you’d find a wiring schematic for the circuits that connect to the blown fuse and trace the wires until you find the problem.
@sonyps307 if the regulator is built into the alternator and not separate, you have bad wiring going to the alternator assembly, OR you're just getting crapper alts. If the regulator is separate, replace it. Scotty
@ikeverner could be lots of things,places like auto zone check the battery and alternator for free. If the battery is good and strong, then I would assume the starter or wiring is bad though. Scotty
@Cmburgess5 rarely does anything go bad in those except the alternators themselves. If you do have a wiring problem, you will need to get your hands on a wiring diagram and trace all the wires from the battery to the ignition switch to the alternator. good luck. Scotty
@kvicks916 that's generally either a weak battery, or a wearing out starter. Have the batery load tested, then replace the starter if the battery checks out OK. Soctty
@63ulices63 that test can not burn out anything, that's something else. But there is a short somewhere in the dome light system, all doors operate that and a lot of wiring, good luck tracing all that out, Me, I'd leave the fuse out.
@itsneyonikka I would then remove the old wiring to thge cooling fans and would rewire them to run every time the engine is started up, it hurts nothing. They you would bypass the short that way. But that would have nothing to do with your turn signal, it's a different system. I would also go get the alternator checked by a mechanic to see if it's bad or not. Scotty
@THEWATCHER902 they have relays, but that's often a symptom of a worn out master switch assembly on the driver's side, see it all the time. Bad switches make dome lights go on and off, and chevy dashes often fall apart because of cheap circuitry which requires their replacement. Scotty
there are also unfused electronics, like the alternator and starter, so you have to unplug their actual connections to see if the light goes out to test for shorts in them
Yes, it sure could be an old alarm. You have to check ALL the wiring and devices by unplugging them wherever their connectors are. Something is draining the juice and it's not in your fuse box. Realize there are miles of connectors and wires it could be. Good Luck scotty kilmer
@saqiblookingood If there's a short, the light will be on with the fuse in, and turn off when you remove the fuse. Scotty
many things can cause shorts, and some things are unfused, like the starter and alternator. You have to unplug every single wire to them one at a time until the light goes on if pulling all the fuses doesn't turn it off.
Scott
The closing pose on the bed will be my gift in cubism form. For, this style of painting forward but with its own edge. And I will of course be doing the cali 10 east drive with painting shown from back! I love my car and new passion to feel and take pride. You paved a way for regular people to trust others from all over the world. Except Hyundai area...
@SRTHAR77 it flashes cause something is turning on and off. Pull the fuses out one at a time until the flashing stops, then that's the culprit. Scotty
@2ub40
You could just have a bad ignition switch, so replace the elecrical postion of the ignition switch, that may solve all your problems. But if not, you'll have to trace all the wiring sections connected to the fan and the fuse that gets hot under the steering column. There are a LOT of wires in there. Scotty Kilmer
Omg you just help me and made my day.and night.fuses kept blowing out.on my car since 7:30am til now 6:45pm.thank you sooooo much!hope to find my shortage.
@ernesto11051 IF the test light goes out, then either the battery is dead or the alternator needs replacing, so have the alternator tested now.
You are absolutely awesome you just diagnosed my truck without even being anywhere around lol my cigarette lighter stopped charging my phone weeks ago and it was cause so many issues inside and out of the truck (subscribed)
Seeing the stack of CD cases in the center console really took me back
@12florencio if it only operates the dome, heck, leave the fuse out and the short will be gone. otherwise, trace all the wires going to the dome for a short.
there are many unfused devices too, like alternators and starters, those you have to unplug their wiring harness connectors to test
@zambert008 NO, if the light is on, that means you have a short in the system. No light, no power is flowing, if the light is on, then power is flowing through the short. And whether the car starts or not with a short depends upon where the short is, and how long the battery has set being drained by the short. Scotty Kilmer
@Thumbseyyy means you have a short that goes on and off, often a bad relay switch or solenoid doing that.
@whitephantom3000 Take out all the fuses, and if you can't find the short, start unplugging all the wiring harness connectors, as some things like starters are not fused and have to be checked by unplugging their wiring harness connectors. Scotty
@nzullo tons of things can cause that, those cars aren't so hot as they age and have electrical nightmares regularly. First, have the battery and alternator load tested, places like auto zone check em for free. "New" alternators are normally just rebuilt and often don't last long. Scotty
that was so easy, I learn every time with your videos Scotty, Master Mechanic, thank you Sir.
no, fuses only burn out when power higher than their rating it used by that circuit, and most fuses are well over 20 amps
you have shorted the wiring somehow if putting on the brakes turns the back up lights on. BUT, most states don't require BU lights for inspection, if your's doesn't , live without it. Otherwise trace ALL the wiring to the back ups.
could be any of those and more. Places like auto zone check batteries and alts free, start there
there are many unfused devices like starters and alternators, to check them you have to unplug their electrical wires to test em
@silencekj yea, the main switches go out on those all the time, and they cost a king's ransom. You could rewire em with toggle switches if you want. One for up, one for down. Scotty
check the bulb first for aburned out element. If not, it's shorting out somewhere from the swtitch to the bulbs
I was not quite sure what was going on until...until the light goes out, rather than on, lol. Awesome video and you are one heck of a mechanic.
check the power wires going to the fuse box, often the connectors on the bottom corrode or melt under the box
@Marlon02Gonzalez Yes, but you will have to trace the wiring to find the short, that's the hard part. But generally the problems occur at one end or the other, so check the non working devices first. Scotty
It sure would be a good place to start. AND check all the main cables at the battery, both power and ground as they often break down internally and need replacing. Scotty Kilmer
Scotty you deserve an award for being the most awesome mechanic.
+poosiehandler youre years to late to say that
hehas been an emmy award winner i say over 8 years ago
Dang, dude did legit mechanic videos, I’m a fan
@MrWiskytango It may help, but computer sensors use VERY little juice and are the hardest to pinpoint down. YOu would have to trace EVERY wire going to the computer to see where that short is. good Luck, Scotty
@WsWJoNeS08 Yes, many devices are live and non fused. So, disconnect the alternator, the starter, the main computer, etc. Something is draining it so you now have to start unplugging devices, just find their electrical connections and unplug or unbolt them. Scotty Kilmer
@lonedrow02 p0340 CAN BE only a bad camshaft position sensor, bad wiring. OR a bad ECM. has to be one of those three. scotty
@KinkNAbmx first just replace the turn signal flasher, it could be that. Any auto parts store can sell you one and show you where it is on their computer picture screen. Scotty
Wow you are an old G Scotty.. I've been seeing you for some time but you go back some.. Bless you for all your great info
Yes, clean everything, especially the throttle body and all the air flow holes inside it. And yes, many hondas do this as they age and the problem normally is inside the throttle body. Scotty Kilmer
many things are unfused, like starters and alternators. Start by unplugging their power wires to see if the light goes out. something is draining it, also unplug the main computer, sometimes they just drain some small amount, and that is normal if it's a low drain.
That's the best trick. It will surely save me lots of time on my older model Mercedes. Thank you so very much.
often a short in the dash unit itself. but that often uses such a tiny amount of power it won't hurt anything.
@hapless665 Try checking in the trunk,often shorted wires or water intrusion on the sockets shorting them out. Scotty
Thanks Scotty, the red lights on the dash is very annoying when driving. I feel like taking the bulb out of the dash, but that does not fix the problem. Ill have to check into the wires when the weather is a little bit warmer. Im going to try to replace a timing belt on a 2000, KIA Sportage this summer. This will be interesting project. Thanks again.
@rbwell2003 try powering the parking lights directly by jumping a wire from the battery to the light switch power supply. If that works, rewire it that way. If not, time to start tearing out wires looking for shorts.
scotty
@tikafabulous start by getting rid of that thing and buying a better vehicle if you want my advice. chrysler vans are endless money pits as they get older. but if you want to try to fix it, start by doing the test in this video and check for shorts. Scotty
@nerox562 take the door panel off and check the wiring, it's pinched somewhere. Scotty
Hey Scotty, I having problems with the fuse box not getting any power on 2001 jetta Thanks for your videos they are very helpful.
@jheibertz Sure you can, but if you mess up, you can screw up the whole car's electrical system (like wiring it off the ignition system.) I advise using a remote on off switch myself. Scotty Kilmer
Well, you've got a short in that fuse system somewhere. I could be a short in the dash circuit, I see that a lot in cases like yours. Dashes are SO expensive, most guys just remove them and have them rebuilt rather than buy a new one. Scotty Kilmer
Thank You Scotty this (expletive) short has been plaguing me for a month Keep up the Good Work
@AKAKASP3R13 Yes, concentrrate on the blown fuse circuit first. Check the wiring from the fuse the whole way back to everything that fuse powers up. Yes, that is a royal pain, but that's what you have to do, or pay a mechanic with experience to do. Scotty
on the fuse that is being blown, do my video "finding the source of electrical shorts". Realize that kit is like 125 bucks, worth it considering mechanics charge 100 bucks an hour figuring that stuff out
@Burt0nSnowboarder some type of wiring OR computer module shorting out, good luck with that. Scotty
generally a bad switch does that. Change that OR put a toggle switch on and rewire power to the pump
yes, it's normally just a bad sending unit that does that, Pray the wiring isn't coming apart though on that old thing
@erzeeshan of course check the fuses first, and realize there are a few boxes in the car, not just one. Scotty
many devices are unfused, such as starters and alternators. to check them, you unplug their wires going into them to see if light goes off.
2008....damn...I feel old..I graduated in 11'...