Thank You for Watching the negative trigger 5 pin relay wiring video! Subscribe To This TH-cam Channel: th-cam.com/users/4g63mightymax See My Wiring Playlist: th-cam.com/play/PLsF7T1tRFy2hmiiUUfMZNyV-BUA_yrPIh.html
Hi. Thank you for your videos. I used your 5 pin relay video to wire my fog lights. The 87a pin leaves my indicator light on like the video says, but how do I reverse it so the indicator light comes on with the fog lights? Any help would be greatly appreciated!
Ratty muscle car.. I have a quick question should I use a relay for the switches on my power windows conversion kit or would it be fine without it... I'm trying to put power windows on my truck..
Thanks! I’m glad it was helpful! It also reminds me of a story... I created a remote controlled house light switch for a science fair when I was a kid in the early 1990’s. I used RC car parts that could attach to any light switch. I lost the science fair to a classmate with model rocket engines strapped to a pair of skis. I’m still sour about it. I should have patented my light switch idea, but everyone thought it was stupid and I was only like 10 years old. “Why would anybody want to remotely control a light?!” Lol.... #hugeregrets
@@kleinstruction874 - I certainly thought so! Rather that inventing technology that the world isn’t ready for, I’m sticking with the cardboard electrical diagrams for teaching others! Lol
@@WiringRescue Yes, stick to what the average person can relate to- cardboard and zip ties!! Reminds me of a joke- The only tools you need are WD-40 and duct tape.... if something won't move, use WD-40. If something moves when it shouldn't, use duct tape...
Used this type for circuit for electric fans on an old hot rod back in the 90s. Used a coolant temp thermo switch from some euro car as the ground switch, with a backup manual switch wired in as well. Worked great.
This seems like the only video that shows what to do with the 86 wire. Every other video I’ve watched I’ve watched many of them they skip this step. Thank you sir.
Thanks for posting this video. It refreshed my mind. Building a rc mower and would be using a remote switch to trigger this relay and that in turn will trip a high amp relay for the motor controller so I can cut power via the transmitter so if there's a problem the mower will shut down and not going on a rampage.
This sounds like an absolutely awesome project! It's probably best if the RC mowers don't rise up and take over. Having the kill switch on the transmitter is a necessity!
You do a very good job explaining things. Much props given, I can build cars but I can't make a good TH-cam video. Lol. You should do one on how brake lights work and still let a blinker "blink"
I’m glad you like the video! I’ve actually got a whole bunch of wiring videos, including the one you mentioned! th-cam.com/video/Io_i9016o10/w-d-xo.html thanks for watching!
exactly. The switch only has to energize a small coil inside the relay (usually a few milliamps). Once the contacts of the relay are made it can pass whatever current the relay is rated for (usually 15 amps for the one in the video). I have seen a micro switch activate a 100 horsepower electric motor by using a relay and a contactor.
This is very useful Datsun 240Z have a negative trigger head light and turn signal switch, this is very useful. I have found every wiring tutorial you have done very useful so thank you. It's very very very possible to over think wired circuits . This series has broken down all the systems to useful Chunk's system by system. Can you show how to wire a viper alarm to a Classic car since they don't come with instructions in english
Thanks for the kind words! I’m unfortunately unable to do a viper alarm system video. I generally dislike wiring alarms because they cause more problems to car wiring than I prefer. Also - thieves are good at getting around alarm systems. You may be better off with cameras facing the car and a mean dog.
...just put a live viper 🐍 in the car and problem solved; no wiring needed. You can still use the sticker "Protected by Viper"...it's just that the real surprise is on the inside. I've often thought of wiring a Rattlesnake rattle to a motion activated switch in the car. Can you imagine opening a cat door and hearing the rattle but not seeing the snake....
Appreciate the example you have created. It would've been ever more helpful if the colors of the wires were also written next to the pin numbers on the board. 👍
U might be the man to answer my question how many relays can u put on one key on hot can u have that one trigger control multiple relays to turn on are no ?
Is there a way to do this with a latching style switch spdt and keep the led on the button on as well I’m using a door jamb negative in order to wire it to the switch as a trigger and on one side ground to engage the dome light but I can’t for the life of me figure out how to keep the light on, on the button and have it turn off when I lock the vehicle it’s a 2007 Tacoma. Thanks for any help in advance! The switch is a apiele 16 mm
Great vids, they've helped in building my fuse and relay panel. There's still something I'm not understanding or I'm not sure if it can be done. I want to use a 5 pin momentary switch ,which I believe has led, to have switched ground for a 5 pin relay. Is it possible to use a 5 pin switch for ground and still have the led turn on?? Led will be on only when vehicle lights are turned on. Thankyou!!
Also trying to figure this one out. I see that he is using a led switch but does not have the GROUND pin connected - usually used for the led. I wonder if this is the disadvantage... But I'm sure there's a way?
This is great. Thank you. It seems that we can cut down wires running through the firewall to one, that is the wiring to the switch and then subsequently to ground on the same side as the switch. Is this correct?
Maybe u can help I have 8 lights in series with a plunger switches on each cargo door to turn the lights on and off when the doors open. This is on a motor home. I recently discovered all the lights are staying on constantly when all the doors are closed. I removed the ground wire on the first door switch and all the lights went out. Is this a possible relay issue has me a bit stumped. I am not sure if it is a 5 pin or 4 pin relay it is difficult to reach and have have to tried yet. Thank you for the great educational videos.
It really depends what the relay is being used for. I’ll give you two examples: 1. Let’s say you want some new fog lights to always come on with your headlights. You would use a power wire from your headlights to trigger the fog light relay (“positive trigger” on pin 86), which would flick your fog lights on whenever the headlights are powered up. 2. Now let’s instead pretend you want a toggle switch inside the cab of your truck to turn the new fog lights on. Using a negative trigger relay, you could keep all the power wires and relay under your hood. Then simply run one negative trigger wire (“negative trigger” from pin 86) inside the cab of your truck, to a switch. The other side of the switch could ground to any metal under your dashboard. By doing this, you won’t need to splice into any wires inside your truck, and there is no risk of the trigger wire rubbing on anything and popping a fuse, because the trigger is on the ground circuit. So in short “it depends”. :) hope that helped a bit.
I have Honda Civic 2015, I am installing a right side camera and want to have the camera activate when using the right turn signal. I am using use the wire from the light switch that is for the right turn signal. I identified the wire, but it has 12 volts when the turn signal if off and drops to 0 volt when is on, how can I use a negative to positive output using a relay? By the way, thanks for the great video!
Hello sir, thanks a lot for this! Question; I'm changing the heater in my 1971 Triumph to an all electric one. Originally it had a switched ground, but no relais or fuse. I want to incorporate them to be safe, but use the standard power wire from the old heater. This is a switched 12v, would that be OK? I do not need to use the heater without the car running anyway as it will just drain the battery
Thank you for this video. It's got the most info I need so far and the clearest and most precise explanations yet. I need help with a replacement 5 wire (+,--, park, high-and low-speeds) Nissan wiper motor that seems to work only when high and low are fed from the ground. I've heard others say that this is the difference with Nissan from other wiper motors (high and low are positive), Is this true and can I use a negative trigger relay for this? i'd be grateful for any help.
I only have one port coming out of an upfitter switch that I’d like to wire up to control ground. Can I combine the ground coming in and the ground going out?
Is a different relay used for a negative trigger system or is it down to the wiring? Am I correct in my thinking that the switch is turning off the earth to relay, thus completing the circuit?
Neither is better or worse. They each have different uses. Check out this video where I explain it a bit further th-cam.com/video/QCkfFCLa_Jg/w-d-xo.htmlsi=zOymebH6QObbKMCE
Thank you for the great info! I am looking to build a fused relay to control several accessories through the use of those 5 pin rocker switches (probably 4-6). I like the idea of negative triggering because, as i understand it, it means there is only power going through the switch when it is on. That said, i am having a hard time figuring out how you would wire the switches themselves. Any help you could provide would be greatly welcomed. Thanks again for the great content.
Hello, thanks for the videos.. I have a 24volt elec toy ride on jeep for a child.. I'm burning up the foot pedal I have tried different pedals but no luck. Can you do a video on wiring up a toy truck.. mine has a motor on each back wheel, lights two 12 volt batteries forward reverse lever 2 speed high and low. I'm thinking I need relays because I'm burning up the foot pedal.. thank u and bless u.
I’m looking to wire a livewell timer in my boat. Single switch with on position off and timer position. I believe this has answered my question but not sure if I would use pin 87a for the on switch position??
Great video thanks for making it. One question on this 5 pin negative switch relay. Can i use another accessory on pin 87a and it will switch between the two? I am trying to figure out how to best install a switch on my third brake light so that i can bypass the installed flasher module just incase i need to disable it and revert back to normal third brake light operation. The negative ground switch seems like i lot less work if i want to put that switch somewhere on my dashboard. Cheers.
That sounds like it will work, as long as you are okay with one of them being active at all times. There would be no way to turn them both off, but it sounds like you don’t need that. So I’d say you’re good to go!
If the negative trigger wire is a signal from a ECU, am I safe? Trying to add brake lights to my bike, but the tail light has 3 leads. +/-/trigger ground. the + and - are for the lamp but it gets a ground signal to kick on the brake light from the ECU I believe.
My question is..do you have a video, or where do you put a THREE way switch? Top (brass) is ground. Middle is for lightbar (led rocker light PLUS lightbar is ON) Bottom is battery (led rocker light AND lightbar off) But still need to operate highbeam as normal But how do i add it into a negative switched headlights on my car.
Ok..I've got a 1992 Harley Davidson sportster..I've taken off the stock front forks and installed a 6 inch longer springer front end ..now for my situation..I'm using a rectangle car headlight ..didn't think of it initially but the headlight is drawing too much amps for this system..how would I wire in a duel headlight relay system..small rocker switches on system..don't want to melt harness,alternator/charging system..
Here is how I would do it: - buy a 4 or 5 pin relay (doesn’t matter which) - connect the factory Harley 12v+ headlight wire to pin 86 on the relay. - connect pin 85 to a ground - connect pin 30 to the battery with a fuse in between (fuse size would be based on how many amps the headlight draws) - connect pin 87 as the power feed to your new headlight. Then when you turn on your headlights, your factory Harley wiring will tell your relay to turn on, which will pop on your fancy new light! Good luck! Hope it works out!
Check out this one I made. th-cam.com/video/0h_ZbIBHM-M/w-d-xo.html. I think you could use 1 bulb, that has two filaments, and your factory low/high beam switch with a little creativity.
I have a remote control lock module and want to connect the trunk opener. The cable from the module sends negative 300mA. My relay says 30A/40A. Can it be that -300mA is not enough to trigger such relay? Do I need a smaler amp relay?
Hi I connected my rock lights to dome lights using a relay. Battery 12 v to pin 30, dome light from car to pin 86 , 85 to ground and 87 to dome lights. It turns on well but when the lights are dimming, the relay starts to buzz. Should I do a negative trigger similar to this video? Or is there something I can do to stop the buzzing?
@@WiringRescue I am working on light pod 3 wires from it… yellow, red, black….. yellow= white light. Red= red light ….. the switch I am using VLD1-A60B type of 3 way switch … Thanks for the video ….
Can you make a tutorial video on how to connect the key switch with LED voltage display to show the real battery capacity of electric scooter like 36-42volts and should be connected to dashboard that requiring 5v supply. I saw some xiaomi scooter installing a key switch with voltage meter but most of them connected only from the out put supply from controller to a dashboad which is 5v only. How to rewire the 3 cables( 4 wire modification) from key switch to separate the voltage from the battery and to retain a 5v supply to a dashboard?
When I'm installing a new component (light bar) on my truck I have the option of Positive or Negative trigger. What is the deciding factor on which option to choose?
Either will work if wired correctly. It mostly depends where you will be mounting the relay. Sometimes people don’t want to have a positive trigger wire running into their vehicle, because it could rub on something and short out. A negative wire will just turn your light on if the wire shorts out. Negative triggers also generally have less wiring because one side of the switch goes right to ground, which could be right next to the switch. Positive trigger needs a full power wire on each side of the switch.
Please help me, Im installing alarm on my car, the alarm output is positive for right/left signals but the switch on car only works with negative pulses. Now i did change the output using relay. The problem is that when the signal lights receive pulse, it will keep blinking until another pulse. So when i pr3ss lock button, it receives pulse and blinking never ends. Suppose to be once for lock and twice for unlock. How do repeat the pulses coming from alarm so when I press lock, it triggers once to flash and 2nd time to turn off flashers. Thank tou
Hi. I have subaru forester sg, and orginal light is h4, one light is on L/H beam, and I heard when feeds over minus, or I can use this electrical circuit to connect the led bar?
It's still okay if you put the switch at + wire right?.. And should I add one more wire ground to battery if I want to connect the 87a pin to another components?
Thank you, exactly what I was looking for. Should the fuse be above or below the rated amp for the source? I'm installing a USB charger that is 6.4 amps. Is a 10amp fuse okay or should I go to 7.5 or even lower?
Solid question! One example that comes to mind could be a car horn. If you look at a factory wiring diagram for most horns on normal cars (maybe a 90 Jeep Wrangler for example?), they have the ground wire (pin 85 in my video) running all the way up the inside of the steering column. Then when you push the horn button in the center of the Jeep steering wheel, it grounds that horn wire to the steering column itself which activates the horn. Beep beep. I see two benefits to wiring it this way: 1: Steering columns have a lot of moving parts and very little space inside. If something breaks this ground wire in the steering column and grounds it out, the worst case scenario is the horn will beep. It won’t blow fuses or light fires or do anything scary. Unless of course you’re afraid of horns. 2: If you were to wire it the opposite way (using the pin 86 side of the relay), you would need a positive wire running into the steering column, up to your horn button, and then another back down the steering column to your relay. As I mentioned above, space inside the steering column is very limited. So one wire is better than two. It’s also TWO 12v power wires that need to be protected from the spinning parts inside the steering column. If one (or both) were to become damaged, it would ground out on the steering column and cause short-circuit electrical issues. Hopefully that helps & makes sense?
Depends what your goal is, because when the relay turns on, 87a goes dead. So 87 or 87A gets power depending on whether the relay is on or off. But they never have power at the same time.
I love your videos and have enjoyed being a subscriber to your channel. I have also watched your fan wiring video and I have a question for you. I have a ground activated radiator fan through a relay. No thermostat, just a switch. My toggle switch has three terminals and it has a warning light in the toggle that I want to use. I think I have the fan wired properly and everything seems to work as it should. I have my 85 ground wire going to the center terminal on the three terminal switch and I have a ground wire on one of the side terminals. Unfortunately, when I switch the toggle and turn on the fan, the warning light on the toggle does not light and I cannot figure out how to get it to do so. I noticed in this video it appears that you are also using a switch that lights when the unit is switched on, but unless I am mistaken, your switch light is also not working when the fan is on. Can you tell me how we can solve this problem? Thanks so much! Lin
Im trying to wire up my fuel pump and my ecu im using has a negative ground for trigger. Does it matter if 85 or 86 gets the trigger if I follow your wiring example?
So I plan to use this on my e-bike instead of a power control module. The motor is 24 volt 250 w and the rated current on the motor is 13 amps..... So a 30 amp relay is plenty adequate, right?
Ok im going to try explain this the best i can i have a digital switich from auxbeam in my jeep that powers my lights and other stuff but i cant for the life of me figure out to turm my eletric fans on let me explain the fans are controlled off a temp sender that when it hits 190° it gounds and turns on the fans standard set up put i also added a extra wire to the temp sensor that a has a switch on it when its open nothing happens close the switch it creates a path to ground and no matter the temp the fan is on thats how it works the auxbeam ditigal swithch panel only supplys power to turn things on it has soild state relays in it im trying to figure if there is a way to use a power circuit from the switch panel threw a relay to create a ground im thinking gound pin 30 then pin 87 to fan wire Ground sire pin 86 then power from switch panel to pin 85 Do you think that will work i figire when you put power threw switch side of the relay it will create a ground on the load side of the relay
@@jeremyhanna3852 - technically the ground should be 85 and your + trigger from the auxbeam switch should go to 86. That being said, you can swap those and it will also work just fine. It’s something that doesn’t matter except to wiring nerds like myself.
@@WiringRescue why you are answering questions I am a very large man 6' 10 380,lbs so stuffing me in cars is difficult anyways my left foot likes to ride on the dimmer switch in my 1950 buick super and bump it anyways I had a 1981 square body chevy truck which should have had the same ish dimmer switch put some how somebody converted it to toggle switch on The dash for high beams up was high & down was low it was a two wire switch and the wires ran to a pair of 5 pin relays the rest of wiring I have no idea how it worked any idea what that wiring diagram would look like
@@WiringRescue oh perfect...so i can technically ground 85 to my steering wheel? im putting buttons on my steering wheel and i want to use switch to negative becuz it use 1 wire to activate.
@@WorstPaperCut - as long as your steering wheel is grounded that should work. What you’re doing sounds similar to how to wire a horn, which I made a video for too th-cam.com/video/eu0vQKKDVho/w-d-xo.html
@@WorstPaperCut sounds rad. I actually am working on a video next that is a simple way to add turn signals, headlights, and a horn to a race car. Stay tuned!
I tried in a bit different way but it doesnt work for me.. can you help me? I negative(ground) to 86 pin and also connected my lamp wire to 86 then, 87 was connected to possitive of my lamp, 30 was connected to possitive battery and possitive switch and 85 was connected to negative switch.. and it doesnt work only the relay was buzzing
It sounds like you have a negative on Pin 85 and 86, which will make the relay not work. If you copy the directions in the video, you should have no trouble. I also have another method here: th-cam.com/video/W2Mr2Zgv1Ck/w-d-xo.html
Got a question. Are there any advantages for using negative trigger vs a positive trigger? Which of them is safer? Currently i am using a negative trigger for my fuel pump and starter.
They are both perfectly safe if wired right with appropriate fuses and wire sizes. They each have benefits. It really depends what you’re doing with them. Some people like negative triggers because it allows them to only run a negative wire into the car and ground it right to a dash. Others want a positive trigger because it’s necessary for controlling that type of circuit they have. Like everything in life “it depends”.
@@WiringRescue Thank you for the reply. For me, i feel much safer running a negative wire through the firewall. And if there is already an existing circuit and just to add a relay i use the positive trigger. Thank you for your feedback. Makes me subscribed.
Thank You for Watching the negative trigger 5 pin relay wiring video!
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Hi. Thank you for your videos. I used your 5 pin relay video to wire my fog lights. The 87a pin leaves my indicator light on like the video says, but how do I reverse it so the indicator light comes on with the fog lights? Any help would be greatly appreciated!
Ratty muscle car.. I have a quick question should I use a relay for the switches on my power windows conversion kit or would it be fine without it... I'm trying to put power windows on my truck..
The power window switch is a 5 pin switch...
hi can the negative switch wire be a thin wire gauge say like 22awg?
I love how you have all your wires attached to a piece of cardboard like a science fair demonstration lol. Very helpful!!!
Thanks! I’m glad it was helpful! It also reminds me of a story...
I created a remote controlled house light switch for a science fair when I was a kid in the early 1990’s. I used RC car parts that could attach to any light switch. I lost the science fair to a classmate with model rocket engines strapped to a pair of skis. I’m still sour about it. I should have patented my light switch idea, but everyone thought it was stupid and I was only like 10 years old. “Why would anybody want to remotely control a light?!” Lol.... #hugeregrets
@@WiringRescue Ha! You were ahead of your time!
@@kleinstruction874 - I certainly thought so! Rather that inventing technology that the world isn’t ready for, I’m sticking with the cardboard electrical diagrams for teaching others! Lol
@@WiringRescue Yes, stick to what the average person can relate to- cardboard and zip ties!! Reminds me of a joke- The only tools you need are WD-40 and duct tape.... if something won't move, use WD-40. If something moves when it shouldn't, use duct tape...
@@kleinstruction874 - lol solid advice right there!!
Used this type for circuit for electric fans on an old hot rod back in the 90s.
Used a coolant temp thermo switch from some euro car as the ground switch, with a backup manual switch wired in as well.
Worked great.
This seems like the only video that shows what to do with the 86 wire. Every other video I’ve watched I’ve watched many of them they skip this step. Thank you sir.
Happy to help!
Easiest explanation I've found. Thanks
I’m happy to hear that! Thanks for watching !
FANTASTIC!!!! this is very stright forward and easy to understand. I have a fan that has to be triggered with the negitive wire. Thank You!!!!!
If you liked this, you’ll probably enjoy my fan wiring video even more! th-cam.com/video/9Hj7Ri3TXhc/w-d-xo.html
Simple. Clear. Concise. I like it. Subscribed.
Thank you! I genuinely appreciate it!
This was the first actual helpful and explanatory video ive found
Excellent! Thank you for watching!
Simply outstanding and simplified! Thank you!👍👍👍👍👍
That’s super nice! Thanks for watching my video and the kind words!
Thanks for posting this video. It refreshed my mind. Building a rc mower and would be using a remote switch to trigger this relay and that in turn will trip a high amp relay for the motor controller so I can cut power via the transmitter so if there's a problem the mower will shut down and not going on a rampage.
This sounds like an absolutely awesome project! It's probably best if the RC mowers don't rise up and take over. Having the kill switch on the transmitter is a necessity!
Nice demo.
Thank you! I appreciate you watching!
You do a very good job explaining things. Much props given, I can build cars but I can't make a good TH-cam video. Lol. You should do one on how brake lights work and still let a blinker "blink"
I’m glad you like the video! I’ve actually got a whole bunch of wiring videos, including the one you mentioned! th-cam.com/video/Io_i9016o10/w-d-xo.html thanks for watching!
You helped me so much. Greetings from germany
That’s fantastic! Thanks for watching! I can’t believe my videos are being watched all around the world!
Thank you for making this video. Helped me out!
Awesome ! I’m happy to hear the video helped you out!
Great video. Quick and to the point.
Thank you for watching!!
Now I get it. A relay is like a strong guy helping a kid (the manual switch) carry out heavy load.
Yes, exactly! I love that! Thank you for watching the video, I very much appreciate it!
Damn great way of putting it😂👍👍👍
exactly. The switch only has to energize a small coil inside the relay (usually a few milliamps). Once the contacts of the relay are made it can pass whatever current the relay is rated for (usually 15 amps for the one in the video). I have seen a micro switch activate a 100 horsepower electric motor by using a relay and a contactor.
Thanks, it was very helpful.
You’re welcome! I’m happy to hear it was helpful!
This is very useful Datsun 240Z have a negative trigger head light and turn signal switch, this is very useful.
I have found every wiring tutorial you have done very useful so thank you.
It's very very very possible to over think wired circuits . This series has broken down all the systems to useful Chunk's system by system.
Can you show how to wire a viper alarm to a Classic car since they don't come with instructions in english
Thanks for the kind words! I’m unfortunately unable to do a viper alarm system video. I generally dislike wiring alarms because they cause more problems to car wiring than I prefer. Also - thieves are good at getting around alarm systems. You may be better off with cameras facing the car and a mean dog.
...just put a live viper 🐍 in the car and problem solved; no wiring needed. You can still use the sticker "Protected by Viper"...it's just that the real surprise is on the inside. I've often thought of wiring a Rattlesnake rattle to a motion activated switch in the car. Can you imagine opening a cat door and hearing the rattle but not seeing the snake....
Excellent. Thank you!
Love the video. Pain trying to find a 75 amp negative trigger relay with mounting eyelet
Best explanation….
Thank you! Glad you enjoyed it!
I switch hot wired my truck. Yeah, it stopped working... eventually. Hooked up a car alarm, Remote lock/unlock eventually broke. Thank you!
Great video
Thank you! You’re great too.
内容非常棒！👍
Thank you!
Excellent.
Thanks! I have a whole playlist of wiring videos if you’re interested! th-cam.com/play/PLsF7T1tRFy2hmiiUUfMZNyV-BUA_yrPIh.html
Good video sar
Thanks, I was able to do this and have two different power sources controlling my acc.switches.
Excellent! I'm thrilled that you found the video helpful! Thanks for watching!
@@WiringRescue yur welcome
Appreciate the example you have created. It would've been ever more helpful if the colors of the wires were also written next to the pin numbers on the board. 👍
Good video for sharing
These are helpful... thx.
U might be the man to answer my question how many relays can u put on one key on hot can u have that one trigger control multiple relays to turn on are no ?
Great video.. you just made me understand relay LOL
Thats fantastic! I'm happy it is helping people out.
My question to you is I would like to wire a 194 bulb to perform 2 functions I would like it to be a corner light and turn signal
How about this video? th-cam.com/video/ZOBd_7rtv4s/w-d-xo.htmlsi=cJwJK1pUcNDIradz
Great explanation! 👍
Thanks Andy!!
Thanks!
You’re very welcome!
Thanks grate
Thanks for watching!
Shared on social medias bro good work
Very good explanation. I wonder if need fuse between relay and switch. Thanks
Is there a way to do this with a latching style switch spdt and keep the led on the button on as well I’m using a door jamb negative in order to wire it to the switch as a trigger and on one side ground to engage the dome light but I can’t for the life of me figure out how to keep the light on, on the button and have it turn off when I lock the vehicle it’s a 2007 Tacoma. Thanks for any help in advance! The switch is a apiele 16 mm
Great vids, they've helped in building my fuse and relay panel. There's still something I'm not understanding or I'm not sure if it can be done. I want to use a 5 pin momentary switch ,which I believe has led, to have switched ground for a 5 pin relay. Is it possible to use a 5 pin switch for ground and still have the led turn on?? Led will be on only when vehicle lights are turned on. Thankyou!!
Also trying to figure this one out. I see that he is using a led switch but does not have the GROUND pin connected - usually used for the led. I wonder if this is the disadvantage... But I'm sure there's a way?
This is great. Thank you.
It seems that we can cut down wires running through the firewall to one, that is the wiring to the switch and then subsequently to ground on the same side as the switch. Is this correct?
Maybe u can help I have 8 lights in series with a plunger switches on each cargo door to turn the lights on and off when the doors open. This is on a motor home. I recently discovered all the lights are staying on constantly when all the doors are closed. I removed the ground wire on the first door switch and all the lights went out. Is this a possible relay issue has me a bit stumped. I am not sure if it is a 5 pin or 4 pin relay it is difficult to reach and have have to tried yet. Thank you for the great educational videos.
That switch have led indicator on it? Can u make it work too in that exact wiring?
Whats the difference between negative and positive rrigger relay... which do you prefer always
It really depends what the relay is being used for.
I’ll give you two examples:
1. Let’s say you want some new fog lights to always come on with your headlights. You would use a power wire from your headlights to trigger the fog light relay (“positive trigger” on pin 86), which would flick your fog lights on whenever the headlights are powered up.
2. Now let’s instead pretend you want a toggle switch inside the cab of your truck to turn the new fog lights on. Using a negative trigger relay, you could keep all the power wires and relay under your hood. Then simply run one negative trigger wire (“negative trigger” from pin 86) inside the cab of your truck, to a switch. The other side of the switch could ground to any metal under your dashboard. By doing this, you won’t need to splice into any wires inside your truck, and there is no risk of the trigger wire rubbing on anything and popping a fuse, because the trigger is on the ground circuit.
So in short “it depends”. :) hope that helped a bit.
@@WiringRescue switch here was commected to 85... 86 and 30 were connected to positive... very helpful... about to understand well... thanks
Hi great video ......can you use 87a to have a light inside the cab to let you know the electric fan is on?
I have Honda Civic 2015, I am installing a right side camera and want to have the camera activate when using the right turn signal. I am using use the wire from the light switch that is for the right turn signal. I identified the wire, but it has 12 volts when the turn signal if off and drops to 0 volt when is on, how can I use a negative to positive output using a relay? By the way, thanks for the great video!
How would you connect a 5 prong momentary button to this set up. Great video by the way 👍🏽 I learned a lot thanks
Is there a difference between a negative trigger relay and a positive trigger relay
Yes - I made a video all about it. Check this out. th-cam.com/video/QCkfFCLa_Jg/w-d-xo.htmlsi=N0po2wpVu0TTfjBu
Can you use an OEM style switch when you wire this way? So that the switch lights up like all the other dash lights?
Absolutely! You just need to figure out how the OEM switch works. Sometimes they work in weird ways. But generally speaking - yes! Try it out!
Hello sir, thanks a lot for this! Question; I'm changing the heater in my 1971 Triumph to an all electric one. Originally it had a switched ground, but no relais or fuse. I want to incorporate them to be safe, but use the standard power wire from the old heater. This is a switched 12v, would that be OK? I do not need to use the heater without the car running anyway as it will just drain the battery
Is there a way to negatively switch an illuminated 5pin rocker switch?
Thank you for this video. It's got the most info I need so far and the clearest and most precise explanations yet. I need help with a replacement 5 wire (+,--, park, high-and low-speeds) Nissan wiper motor that seems to work only when high and low are fed from the ground. I've heard others say that this is the difference with Nissan from other wiper motors (high and low are positive), Is this true and can I use a negative trigger relay for this? i'd be grateful for any help.
Sadly I am totally unfamiliar with that wiper setup so I don’t think I could be of much help.
I only have one port coming out of an upfitter switch that I’d like to wire up to control ground. Can I combine the ground coming in and the ground going out?
Does the BLACK wire from relay go to POS on switch; and GROUND on switch go to GROUND source?
Is a different relay used for a negative trigger system or is it down to the wiring? Am I correct in my thinking that the switch is turning off the earth to relay, thus completing the circuit?
You are completely correct. It’s the same relay, just controlling the ground side of the circuit instead of the power side.
can i rewire my all car with negative trigger relays? wich is better positive or negative trigger relays?
Neither is better or worse. They each have different uses. Check out this video where I explain it a bit further th-cam.com/video/QCkfFCLa_Jg/w-d-xo.htmlsi=zOymebH6QObbKMCE
Thank you for the great info! I am looking to build a fused relay to control several accessories through the use of those 5 pin rocker switches (probably 4-6). I like the idea of negative triggering because, as i understand it, it means there is only power going through the switch when it is on. That said, i am having a hard time figuring out how you would wire the switches themselves. Any help you could provide would be greatly welcomed. Thanks again for the great content.
can i connect my gronds to a chassis ground?
Hello, thanks for the videos.. I have a 24volt elec toy ride on jeep for a child.. I'm burning up the foot pedal I have tried different pedals but no luck. Can you do a video on wiring up a toy truck.. mine has a motor on each back wheel, lights two 12 volt batteries forward reverse lever 2 speed high and low. I'm thinking I need relays because I'm burning up the foot pedal.. thank u and bless u.
I’m looking to wire a livewell timer in my boat. Single switch with on position off and timer position. I believe this has answered my question but not sure if I would use pin 87a for the on switch position??
Great video thanks for making it. One question on this 5 pin negative switch relay. Can i use another accessory on pin 87a and it will switch between the two? I am trying to figure out how to best install a switch on my third brake light so that i can bypass the installed flasher module just incase i need to disable it and revert back to normal third brake light operation. The negative ground switch seems like i lot less work if i want to put that switch somewhere on my dashboard. Cheers.
That sounds like it will work, as long as you are okay with one of them being active at all times. There would be no way to turn them both off, but it sounds like you don’t need that. So I’d say you’re good to go!
The switch on off button. The negative cable you connect with what pin? In or out source?
If the negative trigger wire is a signal from a ECU, am I safe? Trying to add brake lights to my bike, but the tail light has 3 leads. +/-/trigger ground. the + and - are for the lamp but it gets a ground signal to kick on the brake light from the ECU I believe.
I need to make a car clutch that disconnects (a 12v ground circuit) when the pedal is pressed can it be done with a relay? Pls help..
My question is..do you have a video, or where do you put a THREE way switch?
Top (brass) is ground.
Middle is for lightbar (led rocker light PLUS lightbar is ON)
Bottom is battery (led rocker light AND lightbar off)
But still need to operate highbeam as normal
But how do i add it into a negative switched headlights on my car.
Mean I put the ground onto the negative in the battery?
The ground can go to the chassis of the vehicle if the chassis is grounded. Otherwise, the negative on the battery would be the best option.
Ok..I've got a 1992 Harley Davidson sportster..I've taken off the stock front forks and installed a 6 inch longer springer front end ..now for my situation..I'm using a rectangle car headlight ..didn't think of it initially but the headlight is drawing too much amps for this system..how would I wire in a duel headlight relay system..small rocker switches on system..don't want to melt harness,alternator/charging system..
Here is how I would do it:
- buy a 4 or 5 pin relay (doesn’t matter which)
- connect the factory Harley 12v+ headlight wire to pin 86 on the relay.
- connect pin 85 to a ground
- connect pin 30 to the battery with a fuse in between (fuse size would be based on how many amps the headlight draws)
- connect pin 87 as the power feed to your new headlight.
Then when you turn on your headlights, your factory Harley wiring will tell your relay to turn on, which will pop on your fancy new light! Good luck! Hope it works out!
@@WiringRescue Thanks ..
So a second relay then for high beam circuit..??
Is there a duel relay made ..or just use 2 relays ..
Check out this one I made. th-cam.com/video/0h_ZbIBHM-M/w-d-xo.html. I think you could use 1 bulb, that has two filaments, and your factory low/high beam switch with a little creativity.
This video would be even greater if you had one of those finger pointing thingy.
I agree. I need to step up my laser pointer-game for sure.
Can you use that switch to ground 2 relays?
Can you ground back to the battery?
Got a wire harness with a off road light kit but instead of ground going to pin 85 on relay it went 86 is that ok? Thanks
Do you have any thing talking about 40/30 relays
I have a remote control lock module and want to connect the trunk opener. The cable from the module sends negative 300mA. My relay says 30A/40A. Can it be that -300mA is not enough to trigger such relay? Do I need a smaler amp relay?
How would this work if you have an LED light that has 3 wires coming out of it? It’s 90watts & runs on 24v
Hi I connected my rock lights to dome lights using a relay. Battery 12 v to pin 30, dome light from car to pin 86 , 85 to ground and 87 to dome lights. It turns on well but when the lights are dimming, the relay starts to buzz. Should I do a negative trigger similar to this video? Or is there something I can do to stop the buzzing?
Can you show a relay circuit with an on-off-on switch thank you
I do use one in this circuit, but it may not be what you’re after th-cam.com/video/c8JDQrUquw8/w-d-xo.html
@@WiringRescue I am working on light pod 3 wires from it… yellow, red, black….. yellow= white light. Red= red light ….. the switch I am using VLD1-A60B type of 3 way switch …
Thanks for the video ….
Which wire is the one we use to connect to the ACC? So my fog lights turn off automatically when I shut my car down
Can you make a tutorial video on how to connect the key switch with LED voltage display to show the real battery capacity of electric scooter like 36-42volts and should be connected to dashboard that requiring 5v supply. I saw some xiaomi scooter installing a key switch with voltage meter but most of them connected only from the out put supply from controller to a dashboad which is 5v only. How to rewire the 3 cables( 4 wire modification) from key switch to separate the voltage from the battery and to retain a 5v supply to a dashboard?
What if u have a 20 amp switch and my fan im running is 15 amps can i just run switch without relay since switch is a 20 amp switch?
When I'm installing a new component (light bar) on my truck I have the option of Positive or Negative trigger. What is the deciding factor on which option to choose?
Either will work if wired correctly. It mostly depends where you will be mounting the relay. Sometimes people don’t want to have a positive trigger wire running into their vehicle, because it could rub on something and short out. A negative wire will just turn your light on if the wire shorts out. Negative triggers also generally have less wiring because one side of the switch goes right to ground, which could be right next to the switch. Positive trigger needs a full power wire on each side of the switch.
@@WiringRescue Excellent, you confirmed all I could muster up about the 2 circuits. Thank you.
Please help me, Im installing alarm on my car, the alarm output is positive for right/left signals but the switch on car only works with negative pulses.
Now i did change the output using relay. The problem is that when the signal lights receive pulse, it will keep blinking until another pulse. So when i pr3ss lock button, it receives pulse and blinking never ends. Suppose to be once for lock and twice for unlock.
How do repeat the pulses coming from alarm so when I press lock, it triggers once to flash and 2nd time to turn off flashers.
Thank tou
Hi. I have subaru forester sg, and orginal light is h4, one light is on L/H beam, and I heard when feeds over minus, or I can use this electrical circuit to connect the led bar?
It's still okay if you put the switch at + wire right?.. And should I add one more wire ground to battery if I want to connect the 87a pin to another components?
Yes, you can do that - check out this video and I show you exactly how: th-cam.com/video/W2Mr2Zgv1Ck/w-d-xo.html
How ca. I do this to a door lock switch
Thank you, exactly what I was looking for. Should the fuse be above or below the rated amp for the source? I'm installing a USB charger that is 6.4 amps. Is a 10amp fuse okay or should I go to 7.5 or even lower?
I actually made a video for this question because it comes up so often! :) Here you go: th-cam.com/video/EhzN6UdnmPA/w-d-xo.html
Is there power going through the 85 wire in this setup?
Why or when would you ever want a negative trigger?
Solid question! One example that comes to mind could be a car horn. If you look at a factory wiring diagram for most horns on normal cars (maybe a 90 Jeep Wrangler for example?), they have the ground wire (pin 85 in my video) running all the way up the inside of the steering column. Then when you push the horn button in the center of the Jeep steering wheel, it grounds that horn wire to the steering column itself which activates the horn. Beep beep.
I see two benefits to wiring it this way:
1: Steering columns have a lot of moving parts and very little space inside. If something breaks this ground wire in the steering column and grounds it out, the worst case scenario is the horn will beep. It won’t blow fuses or light fires or do anything scary. Unless of course you’re afraid of horns.
2: If you were to wire it the opposite way (using the pin 86 side of the relay), you would need a positive wire running into the steering column, up to your horn button, and then another back down the steering column to your relay. As I mentioned above, space inside the steering column is very limited. So one wire is better than two. It’s also TWO 12v power wires that need to be protected from the spinning parts inside the steering column. If one (or both) were to become damaged, it would ground out on the steering column and cause short-circuit electrical issues.
Hopefully that helps & makes sense?
Click it a few more times just to make sure it works.
Can i connect the 87a to the accesories with positive supply?
Depends what your goal is, because when the relay turns on, 87a goes dead. So 87 or 87A gets power depending on whether the relay is on or off. But they never have power at the same time.
Can this method work if the ground wire is 12v+ when idle but turns to ground when engaged?
I love your videos and have enjoyed being a subscriber to your channel. I have also watched your fan wiring video and I have a question for you. I have a ground activated radiator fan through a relay. No thermostat, just a switch. My toggle switch has three terminals and it has a warning light in the toggle that I want to use. I think I have the fan wired properly and everything seems to work as it should. I have my 85 ground wire going to the center terminal on the three terminal switch and I have a ground wire on one of the side terminals. Unfortunately, when I switch the toggle and turn on the fan, the warning light on the toggle does not light and I cannot figure out how to get it to do so. I noticed in this video it appears that you are also using a switch that lights when the unit is switched on, but unless I am mistaken, your switch light is also not working when the fan is on. Can you tell me how we can solve this problem? Thanks so much! Lin
Do you have a video with a 5 pole relay connected to a 3+ pole switch?
Im trying to wire up my fuel pump and my ecu im using has a negative ground for trigger. Does it matter if 85 or 86 gets the trigger if I follow your wiring example?
It is generally accepted that 85 is the ground, but it will likely work fine if you swap 85&86.
So I plan to use this on my e-bike instead of a power control module. The motor is 24 volt 250 w and the rated current on the motor is 13 amps..... So a 30 amp relay is plenty adequate, right?
Can I use 18g for grounds ?
Ok im going to try explain this the best i can i have a digital switich from auxbeam in my jeep that powers my lights and other stuff but i cant for the life of me figure out to turm my eletric fans on let me explain the fans are controlled off a temp sender that when it hits 190° it gounds and turns on the fans standard set up put i also added a extra wire to the temp sensor that a has a switch on it when its open nothing happens close the switch it creates a path to ground and no matter the temp the fan is on thats how it works the auxbeam ditigal swithch panel only supplys power to turn things on it has soild state relays in it im trying to figure if there is a way to use a power circuit from the switch panel threw a relay to create a ground im thinking gound pin 30 then pin 87 to fan wire
Ground sire pin 86 then power from switch panel to pin 85
Do you think that will work i figire when you put power threw switch side of the relay it will create a ground on the load side of the relay
I completely understand what you are doing and saying. And yes, your plan should work!
@@WiringRescue thxs for a quick answer on a older video I am still going to test the theory tonight to make sure the theory is sound
@@jeremyhanna3852 - technically the ground should be 85 and your + trigger from the auxbeam switch should go to 86. That being said, you can swap those and it will also work just fine. It’s something that doesn’t matter except to wiring nerds like myself.
@@WiringRescue ok I will wire it that way
@@WiringRescue why you are answering questions I am a very large man 6' 10 380,lbs so stuffing me in cars is difficult anyways my left foot likes to ride on the dimmer switch in my 1950 buick super and bump it anyways I had a 1981 square body chevy truck which should have had the same ish dimmer switch put some how somebody converted it to toggle switch on The dash for high beams up was high & down was low it was a two wire switch and the wires ran to a pair of 5 pin relays the rest of wiring I have no idea how it worked any idea what that wiring diagram would look like
can I ground 85 to the chassis instead of the car battery?
Absolutely! As long as your chassis is grounded to your battery.
@@WiringRescue oh perfect...so i can technically ground 85 to my steering wheel? im putting buttons on my steering wheel and i want to use switch to negative becuz it use 1 wire to activate.
@@WorstPaperCut - as long as your steering wheel is grounded that should work. What you’re doing sounds similar to how to wire a horn, which I made a video for too th-cam.com/video/eu0vQKKDVho/w-d-xo.html
@@WiringRescue yes its for a race car. My steering wheel is the same shape as the ones they use from F1. Its a yoke. I can only hold it on 2 sides.
@@WorstPaperCut sounds rad. I actually am working on a video next that is a simple way to add turn signals, headlights, and a horn to a race car. Stay tuned!
I tried in a bit different way but it doesnt work for me.. can you help me? I negative(ground) to 86 pin and also connected my lamp wire to 86 then, 87 was connected to possitive of my lamp, 30 was connected to possitive battery and possitive switch and 85 was connected to negative switch.. and it doesnt work only the relay was buzzing
It sounds like you have a negative on Pin 85 and 86, which will make the relay not work. If you copy the directions in the video, you should have no trouble. I also have another method here: th-cam.com/video/W2Mr2Zgv1Ck/w-d-xo.html
Got a question. Are there any advantages for using negative trigger vs a positive trigger? Which of them is safer? Currently i am using a negative trigger for my fuel pump and starter.
They are both perfectly safe if wired right with appropriate fuses and wire sizes. They each have benefits. It really depends what you’re doing with them. Some people like negative triggers because it allows them to only run a negative wire into the car and ground it right to a dash. Others want a positive trigger because it’s necessary for controlling that type of circuit they have. Like everything in life “it depends”.
@@WiringRescue Thank you for the reply. For me, i feel much safer running a negative wire through the firewall. And if there is already an existing circuit and just to add a relay i use the positive trigger. Thank you for your feedback. Makes me subscribed.
What if my switch is normally a 5v signal that gets interrupted by a brake lever