Very helpful video! I've known for ages how to use a relay with a positive trigger signal but not a negative/ground signal. The clear illustrations and narration explaining the existence and purpose of the electromagnetic coil between pins 85 and 86 are a huge help. Thank you for putting this together!
So I have a switch where there’s two connection that touch which feeds power . Unfortunately when this touches is in the off position. When on one connection isn’t connected . I need to have a power when the one connection isn’t connected to allow power through . If that makes sense .
Hi there, how can I power a 5mm dash LED to turn ON only when the ignition is turned OFF. And then the LED to turn OFF when the ignition is turned back ON?
I'm putting brighter fog lights in my 2004 infinity fx35, I got the bulbs and a wiring harness that has a switch, relay and fuse. The diagram is pretty good that shows the fuse going to the battery and ground wires. my question is on the positive (trigger) wire. Does that go to an ignition switched hot wire? What would be a good source? I got this harness since I can't figure how to use my on the column fog light switch. It won't com on without the head lights.
+Dennis Bickers I always suggest ignition switched positive sources. If you have a ground short in the future your battery won't drain while the car is off. my video titled "easily tap into a Toyota fusebox" should be a good help. It shows what I did on my Toyota but it should help you out on the infinity. You should have open fuse slots like I do both under the hood and in the interior.
Yes... I hooked up my lights and harness but there is no ignition switched spot under the dash and don't see a way through the firewall. I watched you video but didn't help with my vehicle, but Thanks
+Dennis Bickers since you can't do that look up a fuse tap on Amazon or Ebay. But I would only use that to trigger a relay on and not as a sole power source
In theory, you could use a 2-pin flasher relay, regular relay and a momentary button or momentary switch. If I were to do this, I would try connecting the flasher relay between the regular relay (pin 87) and the device that is to be powered. The flasher relay would also power the relay pin 85 and ground would be pin 86. When you press the momentary button the relay would turn on the flasher relay, and the flasher relay would power both the device-to-be-powered as well as the relay itself after the momentary button is released. The flasher relay would then turn off the regular relay when it clicks off. The only issue I could think of would be to load on the flasher relay. The lighter the load the shorter the device will be powered, and the heavier the load the longer it will be on before it is automatically shut off. Another small issue would be that the device would flash if you held the momentary button.
@@LegitRaceCraft okay thanks that's a pretty good idea. I was going to use a diode a capacitor and a resistor that I was having some trouble getting it to work. I only wants to Circuit to close for about a half a second or so
When would someone bridge 87 to 85 on a relay basically no ground? I am trying to wire something up and may need your help to understand what this guy is doing
The video above is more about having a relay turn something on and off without you controlling it. Check out my other video below, it will help you with wiring in a horn. ua-cam.com/video/dBJpgent_NI/v-deo.html
being a 4yr old video i doubt i will get a reply but here goes any way. first very good video and the one which has given me the best idea of what i need to do (i hope) but my boomer ass is still a bit confused lol so i was wondering if you could help/confirm? situation... ive fitted an alarm with remote start to my bike remote start uses a positive signal confirmed by attaching a bulb to the alarms remote start wire and the bikes negative battery terminal and trying the remote start function and bulb lit up the bikes electric start uses a ground signal as confirmed by opening the electric start switch and seeing the black wires. bikes input wire from the start relay is RED/WHITE alarm remote start wire is BLUE so am i right in thinking the following would be correct? 30 = RED/WHITE 85 = BLUE 86 + 87 = battery NEGATIVE so a 4 pin 12v standard automotive relay would be ok? many thanks paul
These sound like Yamaha wire colors (I've owned a few Yamahas) I actually have a relay video that is example 5 of this relay tutorial and should have a link in the description. It covers this exact scenario that you are describing. If I remember correctly though, I think the red/white and blue wires are both positive, the red/white is positive and runs through the kill switch and powers the solenoid, and the blue wire is the positive trigger for the solenoid. I don't remember a black wire. Consult a wire diagram for whatever motorcycle you have though, they are easy enough to find by googling, and check out my other video titled "swapping a positive for ground"
Very helpful video! I've known for ages how to use a relay with a positive trigger signal but not a negative/ground signal. The clear illustrations and narration explaining the existence and purpose of the electromagnetic coil between pins 85 and 86 are a huge help. Thank you for putting this together!
great explanation on the relay.... made it very clear
So I have a switch where there’s two connection that touch which feeds power . Unfortunately when this touches is in the off position. When on one connection isn’t connected . I need to have a power when the one connection isn’t connected to allow power through . If that makes sense .
How can I wire a relay to do this ?
Hi there, how can I power a 5mm dash LED to turn ON only when the ignition is turned OFF.
And then the LED to turn OFF when the ignition is turned back ON?
Great video thanks very much you explained it perfect
I'm putting brighter fog lights in my 2004 infinity fx35, I got the bulbs and a wiring harness that has a switch, relay and fuse. The diagram is pretty good that shows the fuse going to the battery and ground wires. my question is on the positive (trigger) wire. Does that go to an ignition switched hot wire? What would be a good source? I got this harness since I can't figure how to use my on the column fog light switch. It won't com on without the head lights.
+Dennis Bickers I always suggest ignition switched positive sources. If you have a ground short in the future your battery won't drain while the car is off.
my video titled "easily tap into a Toyota fusebox" should be a good help. It shows what I did on my Toyota but it should help you out on the infinity. You should have open fuse slots like I do both under the hood and in the interior.
Yes... I hooked up my lights and harness but there is no ignition switched spot under the dash and don't see a way through the firewall. I watched you video but didn't help with my vehicle, but Thanks
+Dennis Bickers since you can't do that look up a fuse tap on Amazon or Ebay. But I would only use that to trigger a relay on and not as a sole power source
Do you have a wiring diagram where in I can use a relay to make my power door lock autolock when the car Is in ignition on? Thanks in advance
how could i use a relay, when activated, only outputs a momentary 1/2 second output, 12v pos in pos out?
In theory, you could use a 2-pin flasher relay, regular relay and a momentary button or momentary switch. If I were to do this, I would try connecting the flasher relay between the regular relay (pin 87) and the device that is to be powered. The flasher relay would also power the relay pin 85 and ground would be pin 86. When you press the momentary button the relay would turn on the flasher relay, and the flasher relay would power both the device-to-be-powered as well as the relay itself after the momentary button is released. The flasher relay would then turn off the regular relay when it clicks off. The only issue I could think of would be to load on the flasher relay. The lighter the load the shorter the device will be powered, and the heavier the load the longer it will be on before it is automatically shut off. Another small issue would be that the device would flash if you held the momentary button.
@@LegitRaceCraft okay thanks that's a pretty good idea. I was going to use a diode a capacitor and a resistor that I was having some trouble getting it to work. I only wants to Circuit to close for about a half a second or so
very good tutuoral illunistration !
Hi, is 85 on the relay not ground? You have it as positive?
Yes, I may have made a mistake in this video. A lot of the relays I've used are interchangeable between pins 85 and 86
@@LegitRaceCraft No worries, you're right I think they are interchangeable anyways. Good video, I learnt a lot thanks!
When would someone bridge 87 to 85 on a relay basically no ground? I am trying to wire something up and may need your help to understand what this guy is doing
Those 2 may be bridged together so the relay powers on at the same time that power is supplied to pin 87. Is 86 ground?
HourNine Racecraft can i email you a photo of this relay pack maybe you can help me break it down
@@jdxswayzone31 sure. My contact email for this account is on the about page
@@LegitRaceCraft sent
How would be the best way to use this method for a ground triggered horn?
The video above is more about having a relay turn something on and off without you controlling it. Check out my other video below, it will help you with wiring in a horn.
ua-cam.com/video/dBJpgent_NI/v-deo.html
Great video
being a 4yr old video i doubt i will get a reply but here goes any way.
first very good video and the one which has given me the best idea of what i need to do (i hope) but my boomer ass is still a bit confused lol so i was wondering if you could help/confirm?
situation...
ive fitted an alarm with remote start to my bike
remote start uses a positive signal confirmed by attaching a bulb to the alarms remote start wire and the bikes negative battery terminal and trying the remote start function and bulb lit up
the bikes electric start uses a ground signal as confirmed by opening the electric start switch and seeing the black wires.
bikes input wire from the start relay is RED/WHITE
alarm remote start wire is BLUE
so am i right in thinking the following would be correct?
30 = RED/WHITE
85 = BLUE
86 + 87 = battery NEGATIVE
so a 4 pin 12v standard automotive relay would be ok?
many thanks
paul
These sound like Yamaha wire colors (I've owned a few Yamahas) I actually have a relay video that is example 5 of this relay tutorial and should have a link in the description. It covers this exact scenario that you are describing. If I remember correctly though, I think the red/white and blue wires are both positive, the red/white is positive and runs through the kill switch and powers the solenoid, and the blue wire is the positive trigger for the solenoid. I don't remember a black wire. Consult a wire diagram for whatever motorcycle you have though, they are easy enough to find by googling, and check out my other video titled "swapping a positive for ground"
@@LegitRaceCraft thank you so much for the reply
Great help...cheers in 2017 I'm in UK oct