newb push to make switch with relays
Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=120652
Printed Date: July 14, 2025 at 2:36 PM
Topic: newb push to make switch with relays
Posted By: layer1
Subject: newb push to make switch with relays
Date Posted: March 11, 2010 at 9:52 AM
Hello, I'm new here and I'm not familiar with electronics to where I can figure these things out. Any assistance would be greatly appreciated.
I have a switch which is basically a "Push-to-make". When pressed it creates the circuit and when release it breaks the circuit. So, suppose what I'm looking for is information on what type of relay(s) I will need and a diagram to accompany it.
I'm looking to utilize this switch to power driving lights on my brush guard of my truck. To turn on and off the lights I like to push the button to turn them on and when pushing a second time it turns them off.
Is there such a way to do this?
The lights requires 12vdc, 30amps.
Replies:
Posted By: awdeclipse
Date Posted: March 11, 2010 at 11:48 AM
You are using a momentary switch/button. Why not get a push on/push off switch/button to replace it?
You can then use the switch to control a relay to handle the current draw of the fog lights. I would also suggest wiring the relay off either the headlight or ignition circuit so you can't leave them on unintentionally.
Follow this wiring
Terminal 86 will control the relay. Wire one side of your switch to a switched +12v source of your choice (parking lights, headlights, ignition) and the other side of your switch will go to Terminal 86. Be sure to use a fuse on the 87 terminal as depicted in the digaram.
Posted By: layer1
Date Posted: March 11, 2010 at 12:16 PM
Thanks for the reply.
The switch I have is a switch from the Nissan and matches the rest of my switches. I would like very much to keep the natural and default look.

Posted By: layer1
Date Posted: March 11, 2010 at 12:18 PM
Forgot to add.
The illustrations are from the Nissan Xterra model vehicle, I have a Titan.
Is there such a way to do this that is fairly simple?
Posted By: tommy...
Date Posted: March 11, 2010 at 2:21 PM
You can follow the relay diagram for power to relay...Is there something more specific you need...? Are these just 2 wire aftermarket lights...? Does the switch "lock" in place...Then when pressed again,it releases...? If so,that would be fine to use...The switch would be in-between the power source and the relay...awdeclipse seem to be to have explained it...? Maybe i'm missing something...?
------------- M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: layer1
Date Posted: March 11, 2010 at 2:29 PM
I've outline in my first post the switch is does not lock when pressed. When holding the button it closes, but when releasing it opens. I was looking for assistance on using the switch, push 1st time to turn the lights on and then push 2nd to turn them off. The catch is, as I pointed out, the switch only closes when holding it in.
Posted By: tommy...
Date Posted: March 11, 2010 at 2:35 PM
https://www.the12volt.com/relays/page5.asp#lsp... Or just get a different switch... ------------- M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: layer1
Date Posted: March 11, 2010 at 2:43 PM
Thanks. However, I already tried your recommendation and doesn't appear to work as I like. The 1st time I push the switch it output 12v but when pressing the switch the second time it would not turn them off.
This is when I decided to post over to see if I could get any assistance.
Posted By: tommy...
Date Posted: March 11, 2010 at 3:05 PM
It should work fine...Check connections...Did you use the diode or no-diode diagram...?
------------- M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: layer1
Date Posted: March 11, 2010 at 3:09 PM
I used the 5-relays one, non-diode. I went through the connections 3 times and was not able to get it to work. I will work with it again tomorrow when time permits.
I registered over here to get some assistance as I couldn't figure it out.
Posted By: layer1
Date Posted: March 13, 2010 at 1:24 PM
Well, I went and bought some diodes and and tried the 4 relays diagram and still was not able to get this to work.
Any other ideas?
Posted By: anonymous1
Date Posted: March 14, 2010 at 12:40 PM
layer1 wrote:
I'm looking to utilize this switch to power driving lights on my brush guard of my truck. To turn on and off the lights I like to push the button to turn them on and when pushing a second time it turns them off.
This sort of request has already been addresses here. I simply clicked on SEARCH and typed "brush".
https://www.the12volt.com/installbay/forum_posts.asp?tid=120423&KW=brush
It's on the first page under: the12volt's install bay / Lights, Neon, LEDs, HIDs
In this case the relays are driven from the fog light switch in order to reduce modification in the cab by using the existing assemblies.
You existing setup should work of you have the correct switch. If you have a SPST relay and an ON\OFF rocker switch, and it is wired so that ON switches the 12v of the relay coil, then you should have a relay that engages as long as that switch is on and you have a 12v supply. FLIP the switch to the OFF position and the relay unlatches and there will be no 12v to the lights, I don't see how it can be more complicated than this.
.
Posted By: tundra_man
Date Posted: March 25, 2010 at 1:30 PM
Hi
I believe this thread also describes what I'm trying to accomplish as well.
I want to install some LED strips under the hood, to be turned on / off via a relay. With a magnetic switch to control the relay, energizing when the hood is raised. Would a diode across 86 and 85 be necessary for this to work properly? And can I run a single power source to both the magnetic switch and pin 86 of the relay or should I find a separate sources for them?
Thank you for your excellent site!
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