How To Wire a 4 or 5 Pin Relay

In this video I show you how to wire a 12 volt automotive Bosch style relay. This video covers both 4 and 5 pin 12VDC relays.
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Rocky X TV
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Thank you for your support!

[@jervisyoung46]

3 years later and it is still the best video i have found so far!

[@D1G1T4L1Z3D]

I agree

[@lets.go.brandon3494]

Yes, FINALLY a video that EXPLAINS a relay and where everything goes! Only one on KZbin I'm pretty sure. 🤣

[@jerryarobinson5521]

Finally someone that explained the relay wiring and demonstrated how to do it no more burning up wires on my J10 Jeep truck thanks a lot man.... live long and prosper ! !

[@RockyXTV]

Glad the video could help! It's good to hear you won't be burning up a J Series, I love those trucks. Thanks for watching!

[@hartzland7658]

Best example I have found, really well demonstrated & simply explained. I have subscribed.

[@chadmiller3178]

I always come back to this video for relays.

[@tmorrissey5112]

I’ve watched 3 videos and NONE OF THEM MADE SENSE. This is how you do it, thanks for the vid man! Much appreciated!

[@RockyXTV]

Thank you very much!

[@sajayvarghese8253]

This is the first time I could understand how to connect wires using a relay. Thank you bro.

[@RockyXTV]

Thank you for watching!

[@garbagemann9167]

Thanks for taking the time to make this video!! Simple and straight to the point! Keep making videos Rocky and Great job!

[@zenzaleni]

Thank you for that demo, thank goodness there are folk like you who are willing to take the time to show people like me how something is done. Much obliged. Barry

[@RockyXTV]

Glad to help, thank you for watching Barry!

[@jcjustchae8688]

As simple as this video is, it should be the only one to populate when “how to run a simple relay” is searched. OUTSTANDING job.

[@joeparker2364]

Thank you !! For making this direct and simple , with out all the noise .. perfect video

[@samuelmontes6888]

I’ve been looking for a diy video like this to do my fog lights on my civic for 3 years now you broke down the steps like no other great job!

[@RockyXTV]

Glad the video could help! Thank you for watching and taking the time to comment!

[@cabbagesoup7879]

Just found this video and it is by far the best for visual and steps given. Thank you!!

[@RockyXTV]

Thank you for watching!

[@tomfarr56]

I can't wait to get my freeway blasters mounted! Thank you for the refresher!

[@LiamHanley-mu3eo]

Iv been trawling through videos for a couple of hrs and this is how it should be shown well done man highly impressed forget the rest of them back and forth all over the place and ud be still confused thanks

[@RockyXTV]

Thank you very much!

[@jockd7]

Easily the best vid...total layman's terms even I understand it 👏👏👏👏👏👍

[@sillycat8350]

Finnaly the best relay explanation video

[@RockyXTV]

Thank you very much!

[@moobersan]

The best example so far of how to wire up a relay, THANKS

[@acampervanwithaview5718]

A big thank you from England. My fuse in the engine compartment kept blowing. I followed your video on the relay and rewired my relay the correct way round...problem solved, thanks again.

[@RockyXTV]

Awesome! Glad the video could help, thanks for watching!

[@seanyounk1]

Just wanted to say Thanks for posting this. I am wiring a relay for my horn on my recumbent trike. I am very excited.

[@leoamaya1818]

Straight to the point & no B.S. Thank you for sharing the right way of hooking up relays 💯👊🏼 just subscribed 👌🏼

[@firemanrh]

Thank you for the great information. One of the best videos I've seen in regards to wiring a switch with relay! Thanks again!!!!

[@RockyXTV]

Thank you very much!

[@rcrtvtv7084]

Great explanation. You saved me a lot of bad pre wired harness. Thanks

[@glennthomas7435]

Great little vid on a common subject that I needed to know and the first one that has the little side window showing the pin-out and the numbers associated with each wire, good job!

[@RockyXTV]

Thank you!

[@jamesbonanno3359]

Very nicely done! You are a fine instructor. You made things that seem very difficult to understand much easier to comprehend. Also used camera angles and close-ups at just the right time. Kudos.

[@RockyXTV]

Thank you very much James! Very kind of you to say.

[@adj330]

Thank You for breaking down into a simple procedure. Used this to run an auxiliary coolant fan on my truck.

[@RockyXTV]

Glad the video could help, thank you for watching!

[@efewolfe1602]

Downloader

[@madhatter2287]

Best how to wire relay I've found. Thank you. The led drl's I installed on my 2007 Toyota Tundra caused me problems after 5 years. They came with a harness and tapped into the acc and headlight + so they would come on when the truck was started. I've decided to wire them to a switch in the cab so I can turn them on and off as I choose. I have to figure out which wires are which coming off of the harness. That shouldn't be too difficult. I already have the switch. Just need to get the relay and in line fuse. Thank you. I look forward to future how to videos.

[@RockyXTV]

I'm glad you found the video useful, thanks for watching and I wish you luck with your install! Keep in mind that some Toyota's use a "positive ground" setup for their lights. This meaning they don't use the positive wire on the switch, they use the ground on the switch and the power is on all the time. Some quick probing around with a multi-meter will tell you if yours is wired like this.

[@FOVAirsoft]

The animation you made for the video put the icing on the cake. Great video 👍

[@danielwoltag5740]

You were best one on youtube. Knowing the numbers and what they do is really useful. Others go to fast.

[@beaufighter245]

Great explanation. Simply put and easy to follow and understand. Thanks

[@RockyXTV]

Thanks for checking it out, glad it could help!

[@danahammerl4412]

great video, simple and explains everything better than any other video I have seen

[@Steve_W5IEM]

You guys rock. Thank you for explaining this type of thing.

[@RockyXTV]

Thank you for watching!

[@diyboomboxesintexas2805]

Thank you so much. I have used 14 pin relays, but never a 4 pin automotive. Your video really helped.

[@RockyXTV]

Glad it could help, thank you for watching!

[@diyboomboxesintexas2805]

@@RockyXTV I am building a system for a guy. It's a surround sound system to be used outdoors at a drive in theater. He only wanted one switch, and the switch was rated at only 5A. I knew it would not be enough, especially since I am installing a huge 2.1 amp, and a voltage booster, that will power the amp at 48 volts. I used a 12 volt, 40 A relay. Your video was perfect. If you get a chance, check out my channel. I will definitely be watching more of your videos.

[@leonsuggate3478]

excellent visual and verbal demonstration that brings it all together......well done

[@RockyXTV]

Thanks for checking it out!

[@Rsenl1]

Thanks, rocky you made it sound so simple and easy to do even I could do it. other videos Ive seen left me with more questions than answers

[@RockyXTV]

Thank you for watching! I'm glad the video could help!

[@benjamingarcia1072]

This is the most helpful now I know it doesn’t need to be the ignition or something like that it can be a literal switch

[@chippywarren9706]

Goodness! J wish all tutorials were made this way. Kudos and thanks.

[@RockyXTV]

Thank you! I'm glad you like it!

[@esemiklo5833]

Thanks bud for taking the time to make this video,very informative!👍👍

[@robertclymer6948]

Thanks Rocky! all the videos I viewed just show a diagram where the wires go. I love the hands on actual wiring of the relays. Great video. Thanks again and cheers from Motown!

[@RockyXTV]

I've seen quite a few of those videos. Informative but hard to follow at the same time. Thanks for watching and commenting!

[@TheBeardedJeeper]

Really awesome video. Relays were always a mystery to me but this helps a lot.

[@RockyXTV]

Once I learned how to wire them I use them for everything. Thanks for watching!

[@ChadMyers73]

Very informative nice video Rocky!!!

[@RockyXTV]

Thanks for watching Chad!

[@charlesterwilliams1736]

Superb instructional. I had been looking for a video on how to marry a pushbutton light with a relay. the other videos watched were super confusing, You made it quite simple and understandable by not assuming knowledge on behalf of your audience. Thanks so much sir

[@nowzar7650]

Fantastic job! Best relay wiring explanation.

[@scum4299]

Thank you for making it so easy to understand. Good Job.

[@futiktokha]

Awesome video, helped me install a brand new horn using this tutorial, thanks!

[@RockyXTV]

Glad the video could help, thank you for watching!

[@adizivojevic8635]

Use 7A or 10A

[@strokertwo1]

@@RockyXTV what size fuse and do I need fuses for each thing I run off the relay

[@RockyXTV]

@@strokertwo1 If running multiple things off of a single relay just be sure you don't go over 30 Amps. You really only need one fuse on the line going from Pin 30 to your battery. As for fuse size, that can be calculated pretty easily using this simple formula. Watts divided by Volts equals Amps. Example; you have 3 lights that are 55 Watts each, 55 X 3 = 165. 165W/12.5V=13.2A. In this example you would want to run a 15A fuse. I hope this info helps you out and thanks for watching!

[@strokertwo1]

@@RockyXTV man that helped alot thanks

[@xmviv]

Best video, I keep coming back when I need to wire a relay, thank you.

[@henrytiara9201]

Way easier how he explains it. Thank you very much

[@RockyXTV]

Thank you for watching!

[@davidwebb3134]

Thanks bro. This is what I'm looking for. You are a day saver. Again, thank you very much.

[@RockyXTV]

Thank you for watching!

[@CreativePhotoAndMore]

Excellent video and demonstration. Everything is easy when you know how. lol. Thank you.

[@ROADWARRIOR21]

I remember when you helped me with this one THANK YOU !! another great video like Chad said very informative Rock. Like all your videos are my friend. keep them coming.

[@RockyXTV]

Thank you very much Roger!

[@estebanalejandro3598]

a very clear explanation, clean wire connections, thanks

[@worldsgreatestdad4994]

Great video. Very well explained. Keep up the great work!

[@jilla2012]

Very helpful, detailed to what needs to be done. Thank you

[@nsapato]

Where exactly do you attach the relaym

[@elchorisonn]

Thank you very much ive seen like 5 previous videos and just didnt get how it works and you made it simple and very easy to understand people couldn't do it simple as this thanks.

[@RockyXTV]

Thank you very much! I'm glad the video could help!

[@Kaibil66]

Thank you so much for the turorial, great explanation and very professional video. I'll try to hook up my car horn, hope it works.

[@spc717]

Man thx so much! Been looking for a video like this forever! Kept it simple and easy to follow. Great video! Thx again!

[@bigjock7691]

thank you les chat and to the point great thank you.the other ones I seen talked about everything and about nothing ,you were right to the point and made easy again thank you.

[@RockyXTV]

I'm glad the video could help, I've seen a few of those other videos you're talking about. 20 minutes to "explain" a relay. Thanks for watching!

[@DRIVEJA876]

Simple and straight>>>>forward! Thanks Bud!

[@RockyXTV]

Thank you for watching!

[@DRIVEJA876]

@@RockyXTV I wired my 4 pin relay to with the add-a-circuit adapter... my fog lights now work as DRL with my key ignition and engine 'ON' and switches 'OFF' when the key or engine is off... Thanks for the simplicity you used in communicating the concept - I owe my new skill to you! Cheers!

[@RockyXTV]

Glad your install went well!

[@texasspurs6209]

Hell yeah man appreciate this video quick and easy no bullshit straight to the point

[@pattojumpship]

Dude you made that so simple, cheers man

[@RockyXTV]

Thanks for watching! Glad to help!

[@ronkaminski8879]

the pictorial insert of the relay is a nice touch

[@RockyXTV]

Thank you. I was hoping that would be a good explanation/learning tool. Thanks for watching!

[@MALIKBASIT92]

You explain is superbly

[@chezrayrodney1480]

Simplest explanation ever thank you

[@miragairjet7436]

thank you for sharing knowldge, the best video about those relays . iam from libya.

[@NaughtyGoatFarm]

Best relay video I have seen. Thank you. I would like to learn how to use the middle pin not shown in this video.

[@RockyXTV]

Sure thing! I'll try and film a video explaining the uses for pin 87a. Thanks for watching!

[@courtneygray18]

Thanks for everything I been trying to get it to work for weeks now I got it with your help bro thanks

[@raphaelarcangel6912]

awesome video, thanks for the simple technique, really needed this video....GREAT VIDEO!!

[@edgarguerra6398]

Thanks bro, all the way , from Belize.

[@RockyXTV]

Thank you for watching!

[@filcandiy]

One of the best wiring guidance , Thank you for sharing!

[@RockyXTV]

Thank you!

[@somera6125]

Most simple and informative vid about relays.. thanks

[@RockyXTV]

Thank you for watching!

[@caliphjohnson6668]

Great information...im more confidence to add led light bar to my truck....thank you...God bless 🙏

[@ernestangulo8936]

That was honestly the best explanation on how to hook up a relay and what the terminals are used for great work I am now subscribe to your Channel and just to let you know I watched over 20 relay videos

[@kylebaird8538]

Excellent video Followed all the steps and I got through 😎👌

[@B0M0A0K]

Excellent video. Not crude at all as a teaching tutorial. Nicely done.

[@perezr1241]

Thank you for your quick respond. It’s for my car radiator.

[@RockyXTV]

For the cooling fan or fans?

[@aeromech8563]

Nice simple is always best to explain things like this

[@AlexRuiz-lb9yh]

No bs straight to the point! And On Point!! Great video man!!

[@RockyXTV]

Thanks!

[@azizlenox]

Great video. Thank you so much

[@RockyXTV]

Thank you for watching!

[@josephthmasoe8225]

@@RockyXTV What a helpful video. can I install my foglight using this video please?

[@kaspar139]

Excellent video! Well done.

[@dannyschacht4274]

Precise and to the point...thanks

[@RockyXTV]

Thank you for watching!

[@roofabombay1338]

Great video.. Easy to understand

[@harleycrasher8396]

Hooked up a set of l.e.d. running lights to my harley road glide. After a near nuclear explosion and going crazy I found your video. Thanks to you I have nice set of fork mounted lights that look good and no melted wires or blown fuses or hot as F##$ resisters.

[@ReyPortillo]

Thank you man!!! You just saved me a few hours

[@garrettgiuffre7298]

Rocky this is a great video, 5 years I'm sure you have upgraded your production. Redo this video with a good wireless mic! Help more people

[@jimcrawford9773]

Great video Great camera work explained very well .

[@RockyXTV]

Thank you for watching!

[@joserivera6523]

Now I know how to wire a relay good video

[@RockyXTV]

Thank you for watching and taking the time to comment!

[@mochaboi32]

Nice video. Simple and informative 👍🏾

[@pepesanchez9096]

Thanks dude you helped me a lot to connect my hid xenon lights I was struggled for hours trying to figured out how to connect it

[@RockyXTV]

Glad the video could help! Thanks for watching!

[@UFOGHOSTHUNTER]

Me too, once I did finished I said "That was easy"😃

[@RockyXTV]

Awesome! I'm really happy this video is helping people, thanks for watching!

[@mariotufigno7088]

Best explanation I've seen on uTube

[@RockyXTV]

Thank you very much!

[@robertslater644]

Was really helpful, thanks for a great video

[@RockyXTV]

Glad to help! Thanks for watching!

[@antonioboyd4225]

👋👋👋👋👋 straight to the point babble free!

[@northernowl7087]

Brilliant demonstration mate 👍👍🇬🇧🇬🇧

[@nav5897]

Thanks for sharing knowledge.

[@RockyXTV]

Thank you for watching! Glad to help!

[@zacharycrego7397]

Thank you! That's all I can say, you are a godsend my friend!!

[@RockyXTV]

Thank you for watching!

[@TurkVladimir]

Thanks For Your Time

[@RockyXTV]

Thank you for watching!

[@rawbasicrawbasic]

This was on point 👍

[@testbox4595]

Too easy setup for understanding 👍👍👍👍👍👍

[@sebulva]

thank you for making this video

[@joelramirez4688]

Good vid. Explained very well. Subscribed

[@RockyXTV]

Thank you very much! Stay tuned for many more "how-to" videos like this one.

[@seanpollard5254]

Great video very well explained best I’ve seen well done 👍