RELAYS EXPLAINED! How an Automotive Relay Works with wiring diagrams and examples.

This video shows you the inside of a relay and explains how they work with a real world example as well as circuit diagrams. I needed to know, so I researched and made this video. Hope it helps! I know I learned a lot and it will come in very handing for wiring and also diagnosing modifications to my cars.
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Bookmark www.the12volt.com One of the best places to get low voltage info, including radio diagrams.
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Disclaimers
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This video description contains affiliate links, which means that if you click on one of the product links, I'll receive a small commission.
I am a Do It Yourself, also known as DIY, mechanic. I am NOT a professional mechanic. I do not have any formal training in the automotive field.
Help Me DIY assumes no liability for anything you choose to do to your car, before, or after watching one of my videos or utilizing the content from this web site.
All DIY repairs or modifications you perform to your car are made at your own risk. Sometimes, even if you've done everything the right way, you can destroy or damage one or more things on your car. You must understand this, but by leveraging knowledge and patience, the probability of encountering one or more problems can be reduced.
Also, if for some unfortunate reason, I do give incorrect instructions and something breaks because you followed my instructions, I will NOT reimburse or pay in any way for whatever cost that may be incurred due to following my wrong instructions.
Lastly, please don't do anything to your car unless you yourself feel comfortable and confident in doing so.

[@stevearmijo5412]

Thanks, I needed that like a refresher-course! It's been a while... ✌🏼😉

[@HelpMeDIY]

+Steve Armijo you got it! 🍻

[@timburns9909]

Well Done, Thanks

[@HelpMeDIY]

+@timburns9909 you’re welcome 🍻

[@jimmccarthy6015]

Well done , appreciate the “crib notes” version. I’ve always been hesitant to try and solve anything electrical.

[@HelpMeDIY]

+Jim McCarthy same here! Starting to get more comfortable though.

[@torbanberquier2271]

Great vid!

[@HelpMeDIY]

+@torbanberquier2271 thank you! 🍻

[@Combatinho]

Won't you run the battery or higher current flow through 30 and a lower current through 86?

[@HelpMeDIY]

+@Combatinho someone can correct me if I’m wrong, but I don’t believe there are and resistors out anything that would lower the current

[@deep6thisdeep6this92]

87a is convienent to use when it's necessary to turn something off when you turn the relay on.

[@HelpMeDIY]

+deep6this deep6this do you have an example?

[@deep6thisdeep6this92]

@@HelpMeDIY turn off the lights when starting a vehicle (my motorcyle does this). disable the use of a convertible top when starting the car. disable the air conditioning compressor when the ecu detects an overheating situation. (my sports car does this).
the list is just about endless as to what one may want to prevent from happening while something else is happening, assuming the thing that IS happening demands a relay. of course, the thing that one wishes to prevent from happening need not involve a relay.

[@HelpMeDIY]

@@deep6thisdeep6this92 great examples, thanks!