3 Ways To Use Automotive Relays

i'm gonna show you three different ways you can use an automotive relay to control your custom lights or anything electronic automotive let's dive in [Music] okay number one we are going to use this to simply send power to something we're gonna flip a switch or push a button that will trigger this relay and it will send power off to that thing that we want to turn on the second way we are going to use a relay today is to kill power to something so we'll have power going in this and then straight back out to something like the parking lights on our headlights we're going to want to kill those lights as soon as we trigger this thing so for example with my gtr builds i give them rgb where they start changing colors but if the white running lights on you can't even see it because that running light's just too freaking bright so we're going to use this as a kill switch to turn off that white led so we can enjoy our nice custom rgb third way we're going to use this thing is to send ground to something so sometimes you have a product that it only turns on when it gets a ground signal but otherwise it is not operating so we're going to use this thing to power up some white rgb leds they get their signal from ground when they want to turn on so we're gonna use this three different ways let's dive in with the first way which is how to wire this thing super basic to send power all right if we look super close on here we can see that there's certain numbers next to each one of these pins and this little lower one right here it says 30 the one on the left says 86 the one on the right here says 85 and then we have 87 up top and 87 a right here in the very middle so refer back to that as i go through some of this stuff because it'll go kind of quick if we're talking about sending power that means that we need to have power going from the battery straight to pin 30 here now typically that means that you should have a fuse an inline fuse in between the battery and your relay and that should probably be only about six inches away from the battery where you have that fuse that way if anything bad happens on that relay it's going to pop the fuse and then you can just swap that fuse later so nothing is damaged it's just the safest way to wire it you're going to be tapping this thing into an existing fuse box or something like that you can use something there's different sizes of this this is called an add a fuse and it basically just pushes into the place of one of the existing fuses and then you can take that original fuse that was in there plug it back in and now you've got this extra connection you can throw any size fuse that you want back into this thing and that's going to protect the circuit and piggyback onto what's already there sometimes that's a good idea sometimes it's better to just go straight to the battery so if you're going to run like a hardcore light bar or something like that you're going to want to go straight to the battery probably instead of using any sort of existing circuit that's on there just because it's not made to have that much pull coming from it so out of fuses are handy if you're going to be doing something like maybe inside the car you want to put a little switch have everything on a relay super safe and secure just something to think about okay let's talk about the relay i was looking at these relays that already have like the little push-on pigtail that has the wires coming out they're basically just these i saw some of those things that were like 24 bucks and i'm like my god why wouldn't you just take a couple of these crimp them to a wire and now you have something like this power and ground supplied directly to the relay now like i said you'd probably have a fuse on that red wire right there but for the sake of right now i'm gonna plug these things in and i'll talk about what to do next pin 30 here that's gonna be our power wire it's gonna get its power directly from the battery and then we're gonna ground that thing the relay itself at the battery as well which is going to be pin 85 so if you're looking at this thing the bottom middle pin is going to be power and then the pin to the right of that is going to be your ground that leaves us with the outputs which are going to be the middle and the top as well as the trigger that's going to make this thing do what it does it's going to click when this thing gets power right here i'll demonstrate that right now all right so let's hook up ground we're going to hook up power and then all i'm going to do is tap power to that little trigger a and it's clicking so what it's doing is it's going from power coming in the bottom here and then straight back out through that little middle pin and then it's alternating when i click this now that middle pin stops sending power and this top pin begins sending power so right now nothing's coming out of that but now 12 volts coming out of that so what we're going to want to do is run a wire from this top pin which is 87 and it's going to alternate from sending power out through 87a to sending it through 87. okay so now we've got our power coming in through 30 it's coming out through 87 only when power and ground are connected to the battery or to wherever coming into this relay and then this yellow wire also gets power that's going to trigger this to switch from 87a in the center there out to 87 on the top through this white wire so let's hook something up to this now and show that all right here's one of my 7443 led bulbs for the nissan gt-r and what i'm going to do is it's just going to get hooked up to this little relay setup i have my ground hooked up to the bottom of the bulb and going to the relay i have my power going to the relay power's not going to anything else we can see that one of our connections to the bulb for power is not hooked up to anything and then the other leg is hooked up here to pin 87 on the relay if i now take our trigger wire and i touch that to power then the relay is going to send power from pin 30 out to pin 87 and down here which also means that right now even though nothing is telling it to do it anything pin 87a in the center if i just connect this here then it's automatically going to be passing the power from pin 30 straight back out through pin 87a and if i again trigger this relay it's going to change the power from going out 87a to now 87. kind of a little preview on how our kill switch is going to work what you're normally going to have is a setup like this and then this wire which would be our trigger is going to go to something like a little remote control switch when you hit the button it's going to power up this little yellow wire here and then that would turn on whatever it is that we want big light bar whatever you can add a fifth wire to one of these five pin relays and now you can make use of our second wire that's not currently doing anything and now check it out what we're gonna have instead of just on and off is you're gonna have the parking light mode of this bulb and now when we hit the turn signal to use as a trigger it's just going to alternate so you can use something like this where it's only getting powered up ever by the parking light but then when you hit the turn signal you've got both modes the only thing that would not work on that circuit would be if you wanted it to get power from only the turn signal while the running lights are not on that system would not work because you need something to power up this relay so that it has some power to send when it gets that trigger so if you want to use type 1 you're going to power things up that normally only need to ever turn on if you flip a switch or you push a button or let's say you like turn the headlight dial you could also use something like that to tap into the low beam circuit on a car because you know that every time you turn on low beams you want some other lights to turn on such as fog lights or whatever if your car didn't come with fog lights this is exactly how you would make the fog lights come on with the low beams every single time is you could just tap into the low beam wire with the trigger wire so that means that anytime you turn that headlight on or they automatically kick on at night that trigger is going to see voltage to turn whatever on the other way that you could do that is to tap into the parking lights so that you could actually have the parking lights in the headlight on as well as your fog lights kick on before the low beams ever do you just won't be able to turn off your fog lights in which case maybe you should just consider having a little remote control for your fog lights or a switch on the dash as well like you would typically have on a car that came with them number two this is going to be a kill circuit okay so here is a very simple wire harness that i put together for one of my gtr customers that wants to have his bright white lightning bolts turn off only when he turns on the bluetooth remote control for his color changing lightning bolts so we did exactly what i had said before where we just used 87a there in the middle to power up his parking lights now that means that as soon as he pushes that button to turn on the cool color changing stuff it kills power to the parking lights it turns off those white lightning bolts and only the rgb lightning bolts can be seen while that remote is active if you turn it off now it gives power and it lets 87a get voltage again to send to the white lightning bolts so a kill circuit is almost the exact same thing as setup number one with the exception that when it gets triggered it turns power off to something so for this third type of relay the only difference is instead of putting power in the pin 30 we're going to add a ground wire and we're also going to ground it at the same place that we did on type 1 and 2 as well so where ground is coming in at 30. it's coming straight back out through pin 87a and any time this is triggered it's going to switch to pin 87 ground will come out from there so now we're going to talk about throwing ground this is a pretty interesting situation i've got here the very end of an rgbw demonized driver setup so that means we've got a power wire here at the end which is a black wire and we've got green red blue and a white wire which are all ground wires we can test that really simple if i hook up a power wire to this little dude here and then that little guy there we've got white we've got blue got green and red boom got it okay but so that you don't have to mess with all of that oftentimes you just have something like a little rgb remote which this one came compliments of my boy j i'm going to turn this thing on now power up my demon eyes now the cool thing is about these demon eyes that they have the ability to do white only because they have a dedicated white chip inside of them but here's where it gets weird i'm never going to use that i don't ever want them to be white because those things i'm going to use to power up something that i only ever want to be either red green or blue which means that this little white wire right here i could basically i could just kill that off i literally i don't need it whatsoever so instead of having this cool little jst connector which truthfully i kind of hate if you've watched any of my other videos i'm just going to cut all of that off get that gone now let's power this thing up individually again trim the shielding off so now we've got our rgbw wire i'm gonna strip the ends turn it back on and then we're going to talk about how we can use this relay all right so again we're going to give it power at the black wire and now this time it's cool we can select just one color and very often times as i've talked about in many many videos we have the green wire hooked up but the red leds are on well as silly as that is it doesn't really matter for this all that matters is that when we turn on this white one we get this white led now why would i mess with a perfectly good bluetooth connection that had rgbw on there because it's not the controller i want to use i want to use one that only does rgb so this is my absolute favorite bluetooth controller and it only has four wires it's got a black wire it's got a green one a red one and a blue one but it has no white wire which means that if i have any rgb products that actually have a w as well a dedicated white chip then i don't get to use it at all unless unless i use something that can send ground to this white wire as well as power to this black wire and to do that i need at least one relay to send ground now i said at least one relay because i have one relay that is going to send ground down this white wire and then it's going to connect with my other rgb stuff which i'll turn on and show you in a second but because the thing that i'm powering up is an rgb product and it doesn't always have power going to it i don't want to have power back feeding into my rgb controller so i'm using this second relay here to actually send power directly from the parking lights right out to that power wire in my rgb setup now if i just want to have one relay hooked up to throat ground to that one white wire i could do that but it's only ever going to work if the rgb controller is already on sending power down that black wire so in this case i actually have a second relay that i set up so that as soon as the parking lights come on on my buddy's dodge charger it's going to send that power straight from pin 30 right out to 87 a like we talked about earlier and that's going to power up that black wire on the rgb circuit for his drls for the little leds from diode dynamics that are powering up the drls on his dodge charger headlights but we want those things to lose power as soon as we trigger that first relay so that we can turn on the rgb stuff and now they will get power down the black wire from the controller it's very complicated because we have two different relays and they're doing two of the things that we've talked about number one we're using basically a kill circuit but number two we are using the second relay to throw ground that is a workaround now there's also a module that i've seen from lighting trends that apparently does all of this stuff way less complicated but you can build all of this stuff yourself this is only a few dollars worth of parts and if you know how and why you're doing what you're doing you can make it happen as well let me show you what this thing does and then we'll talk about exactly how i made the two relays work together normally how we would want to do this is we would have the relay getting its power from something like the drl circuit it'd be coming into the relay and it would be coming straight out through 85 a to power up that thing automatically and then when we trigger this guy it will kill power to that but we're going to make it even more complicated by adding a second relay in because instead of sending power out to a wire that we want to turn something on we actually have to send ground to something that we want to turn on in this case the white leds from the diode dynamics rgb w drls so many acronyms so relay 1 is going to get its power from the drl circuit going up through pin 30 and out through 85 a that's going to go over to the trigger wire on our second relay that is now going to instead of send power it's going to send ground because we have ground coming in at pin 30 and 85 and so ground is going to leave once this thing gets triggered by relay one and send ground from 87 out to the w wire on our dodge charger drl kit because otherwise it's never going to ever get used that white wire does not work because we're using xk chrome and then to make this even more complicated anytime relay one gets triggered it's going to kill power to the drl circuit because we want that white led to turn off which will then allow the rgb coming from our xk chrome to be completely powered separately now there's only one little way that we needed to do that so that we don't have two different power sources competing or back feeding into any of these components and to do that we just used a pair of diodes so that's a directional little component that only lets electricity go one way so we have a diode on the drl wire and we have a diode on the xk chrome power going down that same black wire so it's just going to alternate whether it's getting it from the drl circuit or it's getting from the xk chrome our relay setup here does not allow both of those things to be powering that circuit at the same time it's one or the other i have to wrap up the rest of this wiring for my dude and i didn't want to do that before i made this video because i knew i knew that this solution could help you this is about as dim as i can make it because those things are super bright now when i push the a button on this remote control all that it did was it interrupted our relay so you can hear it clicking you can see the little blue signal on the remote control box and then you can tell that it is interrupting that white drl which is the ground wire coming off the second relay and it is sending power down the xk chrome to the black wire on the rgb stuff headed to these individual parts now when i click this now the black wire is getting its power from the first relay which is the 87a i kept saying 85 day my bad we got ground going to that white wire but to get power going down the black wire on that rgbw setup the way that we do that is we have our power coming into relay number one and then it's going straight back out through 85a which triggers relay two but what it's also doing is it's sending power down that black wire so we put a diode on there so power can only go from 85 a down into that black wire at the same time that we power up the xk chrome we need it to send power down that black wire also so we have a second diode so we basically have power coming from xk chrome or power coming from 85a on our first relay both of those cannot happen at the same time because 85a only is on while the xk chrome is off as soon as we push the button on the remote control the xk chrome unit gets power which automatically kills power to 85a are you are you actually following this if you caught any of that if that made sense and you're going to be able to use advanced relay kill circuits or anything like that just say yes this actually helped me down in the comments below i really want to keep bringing you crazy value i just want to make sure that i'm not making it too crazy for you if this belongs only in my online course let me know i am adding it to rgb wiring which is one of the paid classes that guys that want to do this stuff is kind of a money-making thing instead of just solving the problems for their own personal car like we've done here for my boy darren ottman i just want to bring you the value if this is too much just tell me bro you lost me say if i lost you just say that in the comments below which makes a lot of sense because this was pretty crazy out there stuff if you want me to keep bringing the crazy value like this on these long-winded silly complicated videos just tell me that as well below in the description wow

Channel: FlyRyde

Views: 312,912

Keywords: Build Custom Lights, Automotive Lighting, How to build custom lights, LED Lighting, FlyRyde, Nissan GTR, RGB LEDs, Color Changing LEDs, Color Change Lights, Bluetooth RGB, XK Chrome, automotive relay, how to use a relay, 12v relay, 12 volt relay, Bosch Relay, 5 pin relay

Id: zGlWCBoQSyo

Length: 19min 8sec (1148 seconds)

Published: Sat Jul 18 2020