Beginners Guide to Automotive Electrical Testing - Troubleshooting and Diagnostics

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  • Опубликовано: 21 дек 2024

Комментарии • 196

  • @zackk695
    @zackk695 2 года назад +80

    I was raised by a mechanic who was highly skilled and also done most of my own work yet know little about electrical. I’m convinced that 99% of mechanics do not know advanced electrical such as finding a short. Someone skilled will find it quickly. In Houston I only know of one that’s at a Buick dealership and they say he’s a rockstar. If the young mechanics would learn all electrical they would be worth $150k a year easily because nobody knows how to do it. Great video bud!

    • @PetesGarage
      @PetesGarage  2 года назад +8

      I agree 100%

    • @MChehab100
      @MChehab100 Год назад

      How would I learn how to do that? Can you advise please

    • @nicolasalvarado9327
      @nicolasalvarado9327 Год назад +1

      DOESNT matter on age I know mechanics in they’re 20s that have more knowledge on wiring vs the 20+year vets. 😮

    • @just456bc
      @just456bc Год назад +1

      In my experience when I was a young apprentice who had a background in electronics(my grandfather being an electrical engineer and my step dad being a 25+ year electrician) the part where mechanics not knowing anything about electrical is 100% true

    • @nicolasalvarado9327
      @nicolasalvarado9327 Год назад

      @@just456bc idc about you experienced as a kid

  • @gamersens2363
    @gamersens2363 2 года назад +45

    Currently in school to become an automotive technician, and my goal is to get into a Porsche dealership. Anyway, turning wrench is easy. It’s easy to take an engine out of the car when you have the fundamentals. What I’m seeing nowadays is that technicians aren’t paid for their wrenching skills, they are paid for their knowledge and troubleshooting. I absolutely sucked at electrical at first, I stayed in class an extra hour because I couldn’t understand the circuits, and in my school we built them, wiring the headlights, taillights, hazard lights, turn signals, anything lights in a car we wired. I just couldn’t figure out the difference between parallel and series circuits and the different resistors we needed. After many more hours out of class, I decided I’d just mess with my car, follow the diagrams and just study until I got the hang of it. Finally, it clicked and it all made sense, and when it made sense, diagnosing became a breeze. Definitely a great skill to have.

    • @PetesGarage
      @PetesGarage  2 года назад +3

      That's awesome!! Good for you, hard work pays off

    • @joshuaschyft
      @joshuaschyft Год назад +1

      Where are you studying it

  • @joeidaho5938
    @joeidaho5938 3 года назад +55

    I used to hate doing electrical work, until I watched a friend go through my rear lighting wiring...and figure out why my rear lights weren't functioning properly. It was meticulous...unwrapping tape...testing...removing useless stuff that others left behind...and learning to crimp wiring properly. When he did it, I realized I could do it also. Was just a matter of focussing on the problem at hand.

    • @PetesGarage
      @PetesGarage  3 года назад +7

      You can do it if you try

    • @joeidaho5938
      @joeidaho5938 3 года назад +5

      Agree completely. Just another learning curve....which is standard if you're gonna take on any automotive project...lol. I'm sure you're doing almost perpetual learning, even after many years at it.

    • @PetesGarage
      @PetesGarage  3 года назад +7

      I lean something new every day

  • @MrBojangles901
    @MrBojangles901 6 месяцев назад +2

    It's a shame I had to waste my time watching the three videos above yours in the RUclips search results.
    Great, simple and straight to the point. Helped me answer my question. Thank you sir 🙏

  • @dejithomas7529
    @dejithomas7529 Год назад +4

    This video so straight forward and very impactful. I love it. Thank you Pete.

  • @joeidaho5938
    @joeidaho5938 3 года назад +8

    I generally use both a multimeter...or a test light. The thing that gets in the way sometimes is how short the leads are....especially if I'm working on the tranny wiring or something else in the middle or back of the truck. I end up clipping together some clip extensions. Wiring is definitely a challenge, especially when dealing with stuff that goes through larger bundles of wiring by the ecm or relay box under the hood. I'm definitely no expert at all on wiring, but with persistence I usually figure things out. I recently had a no crank no start on my truck, after it was off the road for a year and a half....after I got engine rebuilt and rebuilt the tranny myself. At first, it would crank with a screwdriver over the solenoid terminals...but then I got nothing. Ended up finding a break of the solenoid signal wire at the starter.....and also had a new neutral safety switch that was faulty. That neutral safety switch was a real block...because I couldn't believe it would be faulty...lol.

  • @stephens7107
    @stephens7107 Год назад +2

    I purchased a Power Probe II , sort of Pete’s tester on steroids. One of the best tools I ever found.

  • @ventura9513
    @ventura9513 3 года назад +6

    Gday from Aussie land Pete,,,, great vids as always,,, being a diesel fiitter myself, 12v and 24v electrical wiring and fault finding is part of our jobs, so for people like you and myself it comes naturally, I have Snap Ons equivelant to the power probe, wasn't cheap might i add haha,, makes your job lots easier in fault finding,,,,,,, but for those who thinks its a big birds nest, your vids help alot, having said that, please bring on more of the AC Cobra build mate

    • @PetesGarage
      @PetesGarage  3 года назад +1

      Excellent points, I'm getting back to the Cobra this week, finally

  • @hieronymus..bosch8532
    @hieronymus..bosch8532 2 года назад +3

    Electrical is frustrating, i have a fair bit of experience but it doesn't hurt to get other wrench pullers opinion because ego doesn't get anything done

  • @thirdcargarage2951
    @thirdcargarage2951 3 года назад +3

    Good vid for the beginner. A power probe, or similar item is a god sent. I have the $300 Fluke meter...BUT. I always go to my $5 Harbor Freight tester. Just the simple pointy tip with the incandescent bulb. Never get the LED tester. You can judge the current by the brightness of the incandescent. Can’t do that with the LED.

    • @PetesGarage
      @PetesGarage  3 года назад +1

      Interesting, thanks for the comment

    • @jamesdesormeaux1074
      @jamesdesormeaux1074 19 дней назад

      Power probe 3 tells you the voltage on a display and lets you supply current too.

  • @Xera01
    @Xera01 Год назад

    I learned the old system. This is the first time I have heard of the floating system. Going forward I think things will be less confusing. Thanks!

  • @davidsongv
    @davidsongv 2 года назад +1

    Dude just for that acdc band meme i gave you a thumbs up …. Nice one

  • @witnessmalinga2377
    @witnessmalinga2377 2 года назад +2

    This is a very helpful video I have ever come across

  • @johneric3886
    @johneric3886 2 года назад +1

    Good tutorial, Excellent communication skills. Nice tool review

  • @abadmixtape
    @abadmixtape 3 года назад +3

    Also, please make another video about finding shorts in a circuit. That would be greatly appreciated!

  • @albertsautodiagnosticsllc2130
    @albertsautodiagnosticsllc2130 3 года назад

    I have my ASE A6 ELECTRICAL and A8 Engine performance im studying for my A1 engine repair your videos help quite a bit

  • @jg1468
    @jg1468 2 месяца назад

    Weird question here 12v rear lights are on and I stripped the outter insulation of the wire wire is still connected no issues would the strippers touching the wire cause the fuse to blow? Would that be a ground the stripper touching the wire ?

    • @PetesGarage
      @PetesGarage  2 месяца назад +1

      Sounds like it

    • @jg1468
      @jg1468 2 месяца назад

      @@PetesGarage how come it would blow the fuse if I am not applying any electrical to it Just touching the wire with metal tool ?

    • @PetesGarage
      @PetesGarage  2 месяца назад

      I don't have all of the details, but if you touch a bare hot wire to any bare metal on the frame, even with a tool, it will blow the fuse

  • @jamesbehrick9588
    @jamesbehrick9588 3 года назад +1

    Great Vid Pete, I needed the refresher.

  • @rastiarjaff7347
    @rastiarjaff7347 Год назад

    Thank you very much for your videos
    But I can’t see the link of your tools .

    • @PetesGarage
      @PetesGarage  Год назад

      Under the video you have to expand the MORE tab

  • @RyanDohertyRacing
    @RyanDohertyRacing Год назад

    Thank you for this introductory video. Very helpful for me.

  • @yazming1720
    @yazming1720 3 года назад +1

    Awesome Video I've always be nervous about messing electrical part or wire etc.etc. I'm ordering the light tester from your link & gonna start doing all electrical in my Nova. Your explanation gave me the courage to give it a shot. Also keep this easy to follow Videos coming👍💯
    Thanks Pete's Garage
    Yazmin
    Venice Beach CA ⛱ ⛱

    • @PetesGarage
      @PetesGarage  3 года назад +2

      Thanks my friend, you can do it

  • @DavidAConnerSr
    @DavidAConnerSr Год назад

    Where can I find the tool that test different electric systems like a fuse light headlight or horn switch

  • @barneygordon2585
    @barneygordon2585 6 месяцев назад

    When you tested the components, was it still hooked up to the battery?

  • @abadmixtape
    @abadmixtape 3 года назад +2

    Great video, Pete! Very informative!

  • @albertscalla1532
    @albertscalla1532 3 года назад +3

    This really helped! Thank you!

  • @jake68vesta
    @jake68vesta 3 месяца назад

    Hi, you sound like you like wiring , so i have a 1992 Dodge van w/318 I have a crank but no start. I grounded out the fuel pump relay and now don't have spark or fuel. Change the relay's and then found a fusible link bad , peeled the insulation back and just twisted the wires together temporarily now I have power to the relay but won't prime fuel. I can jumper the wires without relay and fuel pump runs. Still had no spark at coil, found 30 amp fuse in the fuse block fried changed that and still no spark. Has new key cylinder lock and ignition module. What to do next trying to find if any other fusible links are fried but seem to be ok. Can you help me with a schematic and how to proceed?

    • @PetesGarage
      @PetesGarage  3 месяца назад

      There is either other blown fuses and relays, or a bad ground somewhere.

  • @johndeloach503
    @johndeloach503 2 года назад

    I have a 97 mustang, when it's cold outside and I start it up the wipers come for a cycle. any idea what could fix that? everything else is great.

  • @imagreatguy1250
    @imagreatguy1250 2 года назад +1

    Pete, this was amazing 👍

  • @normhodgkinson6965
    @normhodgkinson6965 3 года назад +3

    Pete, thanks for the video. i ordered the tester just now. automotive wiring from mid 70's on back i've been pretty good at, except installing relays to added-on accessories. any chance you could do a tutorial on relays in the future ?

    • @PetesGarage
      @PetesGarage  3 года назад +1

      Absolutely, thanks for the idea Norm

  • @RickWalshCleaning
    @RickWalshCleaning Год назад +1

    excellent teacher👍

  • @maar5725
    @maar5725 Год назад

    شكراً لّككك ؛
    Thank Pete
    Very Excellent
    . instruction bud

  • @MrMrBigro
    @MrMrBigro 2 года назад

    Can you have the same thing for obd 1?

  • @bryanquiroga3912
    @bryanquiroga3912 Год назад

    I have a question, what is the best way to learn mechanics hands-on or classroom?

  • @cezartrasfiero6443
    @cezartrasfiero6443 7 месяцев назад

    Thank you Sir for sharing your knowledge

  • @ryankirker1120
    @ryankirker1120 11 месяцев назад

    Wonderfully done

  • @TurkVladimir
    @TurkVladimir 2 года назад

    Thanks For your Time, Very Useful, Informative Video.

  • @KA-pq3yz
    @KA-pq3yz 3 года назад

    Very clear information for DIY guys. Thanks a lot

  • @gator7095
    @gator7095 Год назад

    What is the name of the Electrical tool, for testing shorts etc. I couldn’t open the link in the description or the Amazon page no longer exists.

    • @PetesGarage
      @PetesGarage  Год назад +1

      It's a continuity check tool. I'll fix the link

  • @Bosniakov000
    @Bosniakov000 11 месяцев назад

    is there one of these to help urgent
    electrical professor
    electrician
    electric technician
    my case :
    ( when i connect the multimeter red to red the + / and black probs ) . gives reading as continuity
    important notes :
    1 - NO BATTERY
    2 - multimeter ON Diode mode " continuity"
    - is that normal - ?!?!?!

  • @cybersight5171
    @cybersight5171 Год назад

    I was very excited to learn. I approached my mastee mechanic. He said i dint get paid to pay u. Plus ur going to take my work. I have never asked to learn something n het reply with such an insecure answer. But here iam.

  • @AlwaysDiagnoseVehicleFirst
    @AlwaysDiagnoseVehicleFirst 2 года назад

    Good afternoon sir hope your day is going good! I have an INNOVA 3300 and i want to set it on DC10A and using the red and black lead probe the starter relay pin 30 & 87 to crank the vehicle while im diagnosing it under the hood cause i dont have a helper to crank the vehicle for me, is it possible to do that with the INNOVA 3300 sir?

  • @jerryf609
    @jerryf609 3 года назад

    My horn quit working. I checked the fuse. It was OK. I looked at the wire connections to the horn unit and it was OK, not corroded. The horn doesn't work with the keyfob double lock nor from the steering wheel.
    What should be my next step, please. Thanks

    • @PetesGarage
      @PetesGarage  3 года назад +1

      Wire the horn to the battery to make sure it works

    • @jerryf609
      @jerryf609 3 года назад

      @@PetesGarage Thanks Pete. That makes sense.

  • @Emoji_TTV
    @Emoji_TTV Год назад +1

    Acdc joke was hilarious 😂

    • @PetesGarage
      @PetesGarage  Год назад +1

      It's a long way to the top....

  • @abeebadam1926
    @abeebadam1926 2 года назад

    How do I get the testing tool

  • @EFRAINCARLIN
    @EFRAINCARLIN Год назад

    Wow your video is easy to understand thanks

  • @Darrin_Wyatt
    @Darrin_Wyatt 3 года назад +1

    Great video, on another note I feel weird texting you out of the blue do you have any info on common issues with 351 Cleveland's. I've been inside and out of chevys but I just recently got a 351c for an 89 mustang gt project of my own. Not as familiar with ford's but this mustang has always been a dream of mine, 408 stroker, stock appearing fuel injection, and a tremic 6 speed the works.

    • @PetesGarage
      @PetesGarage  3 года назад

      It's no problem to text me. There are a couple things you can do for a Cleveland.

  • @BLACCRAINBOW1997
    @BLACCRAINBOW1997 3 месяца назад

    I need help with schematics, I cannot seem to get it.

  • @hongscave
    @hongscave Год назад

    Guys please help me out. As a student, I’m wondering would it be beneficial to study mechanical with electrical, or just electrical but more in depth working as auto electrician? Would auto electrician need to work on mechanical side at all? Would having know mechanical side help getting me the first auto electrician job?

    • @PetesGarage
      @PetesGarage  Год назад +1

      I would do mechanical and learn basic electrical. Electrical can be very specialized but is not as common, in my opinion

    • @hongscave
      @hongscave Год назад

      @@PetesGarage Thank you for the advice!

  • @TheOutlawGeneralBacon
    @TheOutlawGeneralBacon Год назад +1

    Thanks Pete!!!

  • @edwinendaya2967
    @edwinendaya2967 2 года назад

    Good pm am sir may I know what is the color code of any car model regarding the unlock door opening when key are inside the car I'm in philippines

  • @guillermonieri4203
    @guillermonieri4203 3 года назад

    Thank you. Very educational & useful.

  • @dewaynebraley2820
    @dewaynebraley2820 2 года назад

    Why does the cheap test light I have only have one lead wire

    • @PetesGarage
      @PetesGarage  2 года назад

      it's not cheap, it's only testing power to ground

  • @mohunkevin7809
    @mohunkevin7809 Год назад

    What is the name of the tools plz

  • @AaronLKLD
    @AaronLKLD 2 года назад

    Great presentation!

  • @jmcenterprises9591
    @jmcenterprises9591 3 года назад

    Thanks Pete, much appreciated!

  • @Chrisymcmb
    @Chrisymcmb 2 года назад +1

    The intro sounded like it was going to be followed by: “rev your engine!”

  • @julians-stuff
    @julians-stuff Год назад

    Just FYI, the Amz link to the tools is not working any more.

  • @adamissah452
    @adamissah452 2 года назад

    Please is helpful can I get the tester

    • @PetesGarage
      @PetesGarage  2 года назад

      You can buy them at any store or online

  • @steddie1
    @steddie1 2 года назад

    Super helpful vid...thank you for it!

  • @gabumunjiru5885
    @gabumunjiru5885 Год назад

    Hi I'm in kenya wish to have one that I connect with my phone

  • @DieselEngine1234
    @DieselEngine1234 9 месяцев назад

    Please what the name of the electrical test

  • @jimjim2119
    @jimjim2119 3 года назад

    Where is the link for the tester?

    • @PetesGarage
      @PetesGarage  2 года назад

      Right in the video description

  • @garrettprosser7336
    @garrettprosser7336 9 месяцев назад

    Anyone use that obd scanner or another like it and have anything to say about it?

  • @mirukuchan
    @mirukuchan Год назад +1

  • @asid731
    @asid731 2 года назад

    What is a good source for unlimited wiring diagrams online? Thanks

    • @PetesGarage
      @PetesGarage  2 года назад

      There are a few places, but it really depends on the vehicle

    • @asid731
      @asid731 2 года назад +1

      @@PetesGarage ok thanks

  • @comrobukadetaejoseph1200
    @comrobukadetaejoseph1200 Год назад

    How much is it sir

  • @jonetrance4495
    @jonetrance4495 2 года назад

    hi i have a 2009 ford fiesta 1.6 tdci,i was driving it last week with no problems,then out of the blue a cog light came on which i have been told is the pcm light,the car died and wouldnt start for around 5 mins,eventually got it running and got it home,a friend plugged it in and a p0698 code came up,he said it was throttle pedal,so replaced that also put a new fuel filter after a day or 2 same thing happend,it wouldnt start so i put a forscan on it turned the pcm light off and it started,after 2 hours cut out again so i unplugged egr and it run fine for 2 days then the light came on again even with the egr unplugged,it has no problem starting but once that pcm light comes on the car will not start until i plug forscan into it and clear the p0698 code,is there anyone out there who can help it says sensor reference voltage c circuit low additional fault symptom circuit voltage below threshold......thanks in advance,jon

    • @PetesGarage
      @PetesGarage  2 года назад

      That's a tough one, I'd have to see it

    • @jonetrance4495
      @jonetrance4495 2 года назад

      @@PetesGarage do you live in cardiff?,lol

  • @Ericdz302
    @Ericdz302 3 года назад

    Great video thanks for the upload

  • @alexmessina3383
    @alexmessina3383 3 года назад +2

    Would have been helpful to have some deeper explanation, examples and applied testing of floating grounds

  • @ricardoawah6727
    @ricardoawah6727 2 года назад

    how can i contact you sir

  • @Assertiveman
    @Assertiveman Год назад

    I didn't expect that acdc clip haha

  • @turnipsucks6416
    @turnipsucks6416 3 года назад

    GREAT...NEED THIS TOOL NOW....UGH.

  • @Luis-fp9eg
    @Luis-fp9eg 5 месяцев назад

    Good very good.

  • @magnatron7734
    @magnatron7734 3 года назад

    Great vid

    • @WBIGTVBuffalo
      @WBIGTVBuffalo 3 года назад +1

      I'm ordering one! Mine are decrepit .

    • @PetesGarage
      @PetesGarage  3 года назад

      Thanks my friend

    • @PetesGarage
      @PetesGarage  3 года назад +1

      Can't go wrong for $23

    • @WBIGTVBuffalo
      @WBIGTVBuffalo 3 года назад

      @@PetesGarage Plus it is big and hard to misplace!

  • @nicodoulos
    @nicodoulos 2 года назад

    Agreed very good

  • @justinekatele2061
    @justinekatele2061 2 года назад

    Thanks a lot sir

  • @TheRallyCoop
    @TheRallyCoop 6 месяцев назад

    It’s not possible to say what needs to be replaced by looking at the code alone.

  • @gregoriorazgado5541
    @gregoriorazgado5541 2 года назад

    What about when the component had many pins 📌 🤔 👀 😳

  • @felm3283
    @felm3283 2 года назад +1

    I don’t recommend fixd they lie you never pay $19.99 you pay more.

    • @PetesGarage
      @PetesGarage  2 года назад

      You do not have to pay monthly. Mine still works fine without it.

  • @76kamikazi
    @76kamikazi Год назад

    Do not leave that Fixed plugged in your car all day use it and remove it,or it will drain your car battery dead.

    • @PetesGarage
      @PetesGarage  Год назад

      I never had that problem, but thanks for the comment

  • @turnipsucks6416
    @turnipsucks6416 3 года назад

    I only hate the diagrams. Otherwise not worried.

  • @livewireOrourke
    @livewireOrourke 7 месяцев назад

    Find a short in my car?
    I did find a pair of my pants...does that count?

    • @PetesGarage
      @PetesGarage  7 месяцев назад

      Depends whose they are

  • @rolandos64
    @rolandos64 7 месяцев назад

    GoD dam everyone is thirsty to be an infomercial!

  • @michaelvlahakis5652
    @michaelvlahakis5652 Год назад

    Lovely presentation please share link or your whatsApp line

  • @rc4211
    @rc4211 Год назад

    Or, just learn how to properly use a multimeter. It's really not that difficult, and a good one is much more capable than this tool.

    • @PetesGarage
      @PetesGarage  Год назад

      That is true, but some people have zero understanding and just need a simple tool to check for continuity

  • @DougHinVA
    @DougHinVA Год назад

    He assumes too much ... plugging in an OBD device to send things to a phone is NOT what everyone wants or knows how to do.

    • @PetesGarage
      @PetesGarage  Год назад

      You can try

    • @DougHinVA
      @DougHinVA Год назад

      nope; some guys view the video and have no interest in a smart phone at all... that's me.

  • @marvinramireztejada1848
    @marvinramireztejada1848 Год назад

    Bro the first minute abraticing came on man at least start with something else