How to Diagnose a Failed Relay In Your Car, Truck or SUV

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  • Опубліковано 18 січ 2025

КОМЕНТАРІ • 328

  • @1AAuto
    @1AAuto  4 роки тому +40

    √ *Watch the Video*
    √ *Buy The Part at 1A Auto* 1aau.to/m/Visit-1AAuto
    √ *Do it Yourself*
    √ *Save Money*

    • @kevinsimmons2144
      @kevinsimmons2144 3 роки тому +6

      Lmklll

    • @kaptainkmann7808
      @kaptainkmann7808 3 роки тому

      Is it possible for a relay for your turn signals and hazards to fail on three of the lights but still work on one. my passenger front works but it's the only one on both signal and haz. lights. 2004 GMC Canyon. scratching my head on this one any help would be great. frustration has set in LOL

    • @siouxzee59
      @siouxzee59 3 роки тому +1

      My starter was bad but the mechanic replaced a switch commutateur interrupter, now my passenger side turn signal hyperflashes on the front, I have no turn signal on the rear. You can feel it in the relay switch located in my fuse box next to my dash. My starter was replaced, but why did they install a commutateur interrupter switch? And, why does the relay switch that they installed cause the hyperflash? Now, they tell me that they can install another switch that will cause the relay switch to stop the hyperflash. Personally, I think it's BS, why keep adding more switches?

    • @abab201
      @abab201 2 роки тому

      @@siouxzee59 lot of auto mechanics who are only in business to lie and cheat the customer; not all but the overwhelming majority

    • @abab201
      @abab201 2 роки тому +1

      @@siouxzee59 thank goodness for channels like 1AAuto and Scotty Kilmer who are out to help, not hurt

  • @S92Chicken
    @S92Chicken 4 роки тому +144

    This is hands down one of the most informative channels for automotive!

    • @1AAuto
      @1AAuto  4 роки тому +5

      +S92Chicken Thanks for checking us out! 1AAuto.com

    • @1AAuto
      @1AAuto  4 роки тому +6

      +S92Chicken Thanks for checking us out! 1AAuto.com

    • @mr.orim0782
      @mr.orim0782 2 роки тому +3

      4 real

    • @RicardoRodriguez-xm5yz
      @RicardoRodriguez-xm5yz 2 роки тому +4

      And they have almost all vehicles too💯

    • @Airmarty23
      @Airmarty23 2 роки тому

      Facts ❤

  • @buddyholly5246
    @buddyholly5246 2 роки тому +25

    Without this channel my truck would live at the auto mechanic shop. That’s not including the thousands I would spend. Absolutely love this channel

  • @SrnDpT-ti1xs
    @SrnDpT-ti1xs 3 роки тому +43

    LOVE the thorough explanation for how it works!!! Common sense explanations and down to earth testing for amateurs without expensive toys. LOVE LOVE LOVE IT

  • @lylachristopherson865
    @lylachristopherson865 2 роки тому +3

    LOL. BEST DESCRIPTION, EVER!! Thank you. Also, I loved the "Honk Animation". I watched it five times. You made little animated sound waves, and the relay actuator closed! Brilliant!

  • @pyrokamileon
    @pyrokamileon 3 роки тому +10

    thank you very much for making this video! I tried reading a write up explaining how relays work and I wasn't grasping everything very well. but now that I have seen this video it all makes a lot more sense to me, it may be just that it's one of those things that you have to see in motion to understand better.. thanks again! 😀

  • @WalkOverHotCoal
    @WalkOverHotCoal Рік тому +5

    Thank you for your video. That would have to be one of the best for a novice like myself. Now I can diagnose electrical faults with more confidence. Great job sir.

  • @TheMotorPsych
    @TheMotorPsych 2 роки тому +7

    Very well explained different methods of testing relays; really liked how you took the time to explain the workings too. Great for amateurs like me.Thanks!

  • @bengiarraputo9357
    @bengiarraputo9357 Рік тому +1

    Thank you, great video. You are very smart, I could never do that, very clear, and calming voice. Well spoken .

  • @CoolHandLuke778
    @CoolHandLuke778 2 роки тому

    I knew their had to be a way to test those. The Chevrolet dealership and stupid autozone said they can't test them! BS! Thank you! You saved me 50 bucks! My issue is my more expensive radiator fans..... but that 50 will go towards them. Thank you again.

  • @mymusic3354
    @mymusic3354 8 місяців тому

    A relay tester.....This is the first video I've seen to bring this tool up into the discussion! Also very good explanation of how a relay works. A helpful and informative video! 👍

  • @jeffreydaley3730
    @jeffreydaley3730 4 роки тому +11

    Excellent video & detail. Like the fact you demoed other methods of testing. Thanks.

  • @Mr.C.Cloud9
    @Mr.C.Cloud9 3 роки тому +2

    Best auto repair video ever. Stumbled upon this trying to figure out why my Ford Focus high beams aren’t working but I hear a click! ✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️

    • @1AAuto
      @1AAuto  3 роки тому

      +Mr. C. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

  • @barryalan4069
    @barryalan4069 4 місяці тому

    Your display was very clear to me, and the instructions were to the point. Great Job. Thank You.

  • @TENCUHTLI
    @TENCUHTLI 4 роки тому +27

    I really love the horn animation, that’s Disney level of creativity!

  • @SCESW
    @SCESW 2 роки тому +1

    Thank You so much for this video.
    It helped me sort out something that had been driving me crazy.
    Did not realize that inserting it backwards will 'randomly' break stuff.

  • @alewis6451
    @alewis6451 2 роки тому +1

    Thanks for explaining , showing, and testing the relay.

  • @jembo1959
    @jembo1959 Рік тому

    That has to be the best and so well explained video on how a relay can be either bad or good. Thanks so much for your great explanation. Top class.

  • @janeene24
    @janeene24 2 роки тому +7

    UA-cam has saved me so much money on car repairs! 🙌🏾

  • @7gooo
    @7gooo 4 роки тому +2

    Very Very Useful methods shown in this video >> Big thumb up for Andy & 1A Auto team

    • @1AAuto
      @1AAuto  4 роки тому +1

      +7Gooo Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com:
      1aau.to/m/Shop-1AAuto-c

  • @annam3598
    @annam3598 2 роки тому +2

    The diagram made easy to understand how a relay works. Thank you!

  • @justwelltariang2456
    @justwelltariang2456 9 місяців тому

    Exceptional explanation ,the way you explain is very cool and easy to understand.thanks.

  • @righteousman8488
    @righteousman8488 2 роки тому +1

    Thanks for the lesson

  • @1Azrattler4
    @1Azrattler4 3 роки тому +2

    Your explanation on relays was awesome.

  • @veronicastewart1959
    @veronicastewart1959 2 роки тому +1

    Where do you get the relay test box and the other part , are do they come together in a kit ? Are maybe the name of it I looked for a picture on y'all website but didn't see . Your video is great especially the way you explain and break it down . You definitely would make a great teacher in some High school or Technical school . Thank, you for sharing and teaching some tricks of the tread.

  • @bassdogg8551
    @bassdogg8551 3 роки тому +1

    You made so simple to understand dude. Thanks so much.

  • @Mechanicsville804
    @Mechanicsville804 2 роки тому

    Best video on relays I’ve ever seen 👍

  • @pdnwaor
    @pdnwaor 3 роки тому +1

    Excellent. Very details on hand on example on how circuit works on relay. Thanks.

  • @1998gst4611
    @1998gst4611 8 місяців тому

    I like that relay tester that you use that tells you if the relay is good or bad. Where do i buy that relay test tool?

  • @billylun9634
    @billylun9634 10 місяців тому

    Very informative. Appreciate your time and dedication .🙏

  • @kellyhatcher8802
    @kellyhatcher8802 2 роки тому

    hell yeah you helped me solve a gremlin in my headlights that ford dealership couldnt figure out.

  • @Databyter
    @Databyter 2 роки тому

    Great thanks. I'm curious about how they came up with those off the wall circuit numbers, but that is a riddle for another day.

  • @ptyptypty3
    @ptyptypty3 3 роки тому +1

    as usual... you videos are the BEST on the Internet!!! thank you!! :)

  • @diyforlearning169
    @diyforlearning169 3 місяці тому

    Excellent explanation!!!

  • @pnweezy
    @pnweezy 2 роки тому +1

    Very thorough and different ways testing the relay. Thank you 1A auto

  • @ruthspillman546
    @ruthspillman546 3 роки тому

    Great info!!! I have a failure started w my drivers side door locks. Finally took entire down to nothing. So now I shall go out to check fuses and relays before I call anyone. Tks!!!

  • @harvrindrsingh
    @harvrindrsingh 4 роки тому +1

    Hi from Dubai. Thanks again for great information video

    • @1AAuto
      @1AAuto  4 роки тому

      +harvrindrsingh Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com:
      1aau.to/m/Shop-1AAuto-c

  • @ARM_DM
    @ARM_DM 4 роки тому +4

    Really good video. Both of my headlights went out. First thing I noticed was some corrosion on the battery clamps which I got rid of, and I made sure the fuses worked. I will be checking the relay after this. God I hope it's the relay, I do not want to deal with wiring harness. Also, do you think that a bad, maybe worn out battery clamp can cause the headlights to not turn on, even after car stars and all the other light work?

  • @kazibweivan9051
    @kazibweivan9051 2 роки тому

    Excellent video bro thanks a lot I have learnt it today and I hope am gonna work on my Van

  • @TruthBot1984
    @TruthBot1984 10 днів тому

    Great video 👍

  • @ssn7870
    @ssn7870 4 місяці тому

    Well explied sir..
    Thank you very much.

  • @lmuhlstadt
    @lmuhlstadt 7 днів тому

    Great Explanation

  • @gorilladogmotherturtlebum769

    Hello I have a Mitsubishi Outlander 2017 and both headlights turned off the same time, fuses are fine my high beams, blinkers, Park lights all work I tried taking out the relay and I couldn't get it off I used a spanner and cracked the top, are some relays not supposed to come out, I'd appreciate your advice. You're channel is excellent and female friendly thank you

  • @xxghostreapsxx6969
    @xxghostreapsxx6969 2 роки тому

    What should I do if I have multiple relays that are good but still don't work it's on a 94 ranger if that helps I've tried everything and this was an awesome vid by the way👍👍

  • @windycityben4850
    @windycityben4850 2 роки тому +1

    That was a really great explanation.

  • @SuperLorenzogarcia
    @SuperLorenzogarcia Рік тому

    Thanks for the info and all the great videos!

  • @FamaxFatusha
    @FamaxFatusha 9 місяців тому

    Thank you iam basing on vehicle electrical issues iam still learning in my school,can you please link me to where I can get your full technics in various parts of auto wiring.

  • @notallowed33
    @notallowed33 Рік тому

    Awesome! Super good help! Thank you!

  • @Marys-Channel
    @Marys-Channel 8 місяців тому

    Big Like 👍
    Thanks for the education.

  • @kaaraa-mardha1977
    @kaaraa-mardha1977 Рік тому

    You're knowledgeable and experienced,

    • @1AAuto
      @1AAuto  Рік тому

      +Abdullahi Abdullahi Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1aau.to/m/Shop-1AAuto-c

  • @ahmedbamouh4936
    @ahmedbamouh4936 7 місяців тому

    Thanks for the tip 👍👍👍👍

  • @devoncampbell4039
    @devoncampbell4039 3 роки тому +1

    Awesome video 👍👍

  • @roccozarcone4393
    @roccozarcone4393 Рік тому

    Great job enjoy watching your videos😊

  • @TyroneMaye
    @TyroneMaye Рік тому

    Great video explaining how to test relay ...may i please get the link info to order the type relay tester you used here in the video ?

  • @wagohowardmusic
    @wagohowardmusic 8 місяців тому

    From the videos, I watched if you’re working on your ECM make sure your keys not in the ignition as it would start the car and you don’t want it to be and drive 7:00

  • @simpleinstants
    @simpleinstants 2 роки тому

    I enjoyed and learned a lot .THANK YOU for sharing it!

  • @georgeclouson2614
    @georgeclouson2614 10 місяців тому

    Excellent job.

  • @heroknaderi
    @heroknaderi 3 роки тому +1

    Very helpful how much is a Relay tester

  • @ThomasMcClaughry
    @ThomasMcClaughry 2 роки тому

    Excellent video

  • @andrewbaker6615
    @andrewbaker6615 3 роки тому +1

    Nice and easy teaching even I can understand the video.

  • @OscarReyes-v2y
    @OscarReyes-v2y 11 місяців тому

    Good explanation Mr how to test a relay

  • @CameroonMumba
    @CameroonMumba Рік тому

    Very well explained..thumbs up

  • @xChromerSatanasx
    @xChromerSatanasx Рік тому +2

    lol i like the horn drawing simulator

  • @rigobertochavezjr2026
    @rigobertochavezjr2026 2 роки тому

    Great vid my gmc sierra 2000 tries to turn on ... But it can't catch ... We changed the fuel pump ... What else could it be ? I'm guessing the relay? It's on old truck but still runs good when it runs

  • @jaredmarcus1992
    @jaredmarcus1992 2 роки тому

    Awesome Info! Wish you were my Tech.......

  • @anthonyfisher4874
    @anthonyfisher4874 Рік тому

    Amazing video thank you!

  • @2002erli
    @2002erli 3 роки тому

    This is a KICK-ASS Video- Thank you!

    • @1AAuto
      @1AAuto  3 роки тому

      +Erli Bittencourt Thanks for watching!

  • @earlbucklin8323
    @earlbucklin8323 9 місяців тому

    Your are the best...... thanks.............

  • @marcosoyao99
    @marcosoyao99 3 роки тому

    Sir, your presentation really illuminated me in the subject matter. Thank you

  • @chrishaan5766
    @chrishaan5766 3 роки тому

    WOW!
    An explanation that I will remember
    Don’t you hate it when people make
    “HOW TO VIDEOS”
    And they don’t know how!!

  • @douwe4549
    @douwe4549 3 роки тому +1

    simple explanation, well done, thank you!

  • @fieldsofomagh
    @fieldsofomagh 4 роки тому +1

    Very inclusive video of all the methods needed to diagnose a faulty relay.

  • @MovementMilo
    @MovementMilo 2 роки тому

    What a GOOD video. I learned SO much. Thank you.

    • @1AAuto
      @1AAuto  2 роки тому

      +Camilo Martinez Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

  • @skipskip3078
    @skipskip3078 3 роки тому

    that showing very interesting I'm looking for that tool now you had in your hand there's a master one I'm trying to find thank you very much have a nice day

  • @amybbartsch
    @amybbartsch 3 роки тому +1

    Awesome!!! Thanks so much for sharing.

  • @bobolbricht6331
    @bobolbricht6331 Рік тому

    EXCELLENT DESCRIBSION

  • @Dhi-fe5eu
    @Dhi-fe5eu 2 роки тому

    Great video and demonstration. Learned a lot.

  • @erichkestler1934
    @erichkestler1934 3 роки тому +1

    Fantastic video! Thank you.

  • @Kyn-Lee
    @Kyn-Lee Рік тому

    Before taking out the relay or any fuse do you have to disconnect the negative connector from your battery?

  • @robertmedina3982
    @robertmedina3982 Рік тому

    Great job

  • @MikeMajdick714
    @MikeMajdick714 Рік тому

    Good video bud

  • @ChandraSQLVideos
    @ChandraSQLVideos 2 роки тому

    Fantastic video...

  • @Dead-Goldstar
    @Dead-Goldstar Рік тому

    Great video very informative 👍

  • @hasaanmahdi9295
    @hasaanmahdi9295 2 роки тому

    Can I bring a separate wire as aground from the battery to the 85 spot because I think the ground is weak as Im changing the relay and the AC IS not working? Thanks

  • @Klikklikboom0911
    @Klikklikboom0911 6 місяців тому +1

    What’s the issue if the relay is good but no power to the terminal that the relay plugs into??

  • @jimmymaupin4762
    @jimmymaupin4762 2 місяці тому

    Where can I purchase a couple relays best cheapest place

  • @PeterMojhar-wr7nd
    @PeterMojhar-wr7nd Рік тому +5

    What if your High beam not working?

  • @KbKdBontia
    @KbKdBontia 6 місяців тому

    Good day sir, can i ask about the battery saver relay location of 2001 ford explorer sport trac? I watch some videos ang i did actually found the relays under the steering wheel but i don't know where exactly the battery saver relay.
    Because the battery always drained. Thank you

  • @crsrdash-840b5
    @crsrdash-840b5 2 роки тому

    This is going to my learning about cars folder.

  • @jat-justamaturetech-philpj8285

    I'm getting a p1282 code on odometer read out. Do you think it could be due to me pulling the fuel relay out and using a jumper to do a fuel pressure test? I replaced my fuel pressure regulator and did a pressure test. All's good, no engine light or codes. How to reset?? ✌️

  • @thegibsonserver
    @thegibsonserver 3 роки тому +1

    Brilliant explanation. Thank you!

  • @chuckc3665
    @chuckc3665 Рік тому

    can you make a video on 2012 nissan sentra fuel injector replacement thank you in advance

  • @Ratlins9
    @Ratlins9 2 роки тому

    Great informative video, thanks

  • @AmitThakorlovemeorhateme
    @AmitThakorlovemeorhateme 2 роки тому

    Nice video

  • @Ezzell_
    @Ezzell_ 3 роки тому

    We a need a look at those relay pullers.

  • @theworldofqu4326
    @theworldofqu4326 Рік тому

    THANK YOU SO MUCH!

  • @hopefulton5670
    @hopefulton5670 2 роки тому

    Good video

  • @reiganthomas7719
    @reiganthomas7719 3 роки тому

    Thanks from india... 🌹🌹

  • @elektronik8875
    @elektronik8875 3 роки тому +1

    Greate explanation!!Very clear!!

    • @1AAuto
      @1AAuto  3 роки тому

      +Elektronik Thanks for the feedback!

  • @gregrule3882
    @gregrule3882 3 роки тому

    Terrific tutorial. Thanks