How to wire headlight relays

This video is a detailed walkthrough of the American Autowire headlight enhancement relay kit. Our kit includes separate relays for the high and low beams as well as upgraded GXL wire to make fresh connections to your lights. It's available in both standard (pn/ 500403) and weatherproof (p/n 500431) form.

[@yocz2007]

Thanks for the infos,thats help me to see clearer on the light bar installation!

[@udaygidge5457]

very nicely explained..thank you!

[@Hiazhunter]

Thanks for the information. I used this setup but without the dimmer switch. I used a DPDT toggle for my aftermarket fog/driving combo lights.

[@boseimm1]

I am trying to wire a gmc 2017 Yukon Denali fog lights? I purchased a LED fog light kit. It explains the wiring ok. Although I would like to wire this kit bypassing the switch that comes with the kit and use the switch that is already inside the cabin of the Yukon. Are you able to explain how to tackle this approach? Thank you, Patrick

[@quraishalgurabi8089]

Do we have to install Fuse 30 to Batt. and what is the amp. rate for Relay's and the Fuse if we have to use.. thanks

[@Turbochapman]

If I've already used the AAW Classic Update Series Kit for my Nova do I need this to power my new Led headlights? They seem to work fine now, just don't want issues on long overnight road trips.

[@domingodeanda233]

That was pretty damn good

[@PaulsAssortedTinyIdeas]

Nice one, what software you use for the animation? Tnx

[@bentleynut1648]

Terminal “85” is typically used to wire to ground (not 86 as mentioned in the video) and terminal “86” would be used for your existing Low Beam (or High Beam) trigger wire. Terminal “30” should be used for Battery Power and should have an in-line fuse or circuit breaker. Terminal “87” should go to the Low Beam (or High Beam) light

[@wengsiongsai2815]

Pins 85 and 86 are on the trigger/activate circuit, which is usually activated by a live on one pin and a switched earth/gnd on the other OR a gnd on one and a switched live on the other. It doesn't matter which way round.

[@junaronate2688]

Ùuþý

[@babelonchabalala1690]

In the video the relays are laying sideways.... The layout is correct ..... Turn it 90° counterclockwise then u will see its correct.... All these type of 5 pin relays are the same..... Only problem with this video is that there is no fuse between battery and pin 30 to protect the circuit from overheating or blowing a bulb

[@dammitbobby283]

Is it possible to put a toggle switch on one of the headlight wires to add a 3rd headlight on the back of a tractor? This would be very useful for connecting the PTO or a manual reverse light.

[@ignatuissampie8054]

Hi ...i did it a couple of months ago , and it worked real good...but now my headlights are very dim again...pls advise

[@cfuller926]

protects my '71 switch & wiring as I install H4 lghts. Better ck grounds. Can U send me the schematics electronicly. Cant get it to dwn load...

[@rupnik1012]

Can u send me the video or photos how to do wiring to 9006 bulb to connect h4 wiring on 2weller .

[@alphathefirstone1222]

Thanks I have 2 prong headlights..will copy this to the tee...thxs

[@roderickverga6517]

Hi,I have a 2007 Honda Fit, it uses H4 bulbs, I have put some led driving lights to assist with the high beam, with the standard bulbs I can get the driving lights to work with the high beam, but as soon as I put LED H4 bulbs in the driving lights will not work, can someone help. I have tried to get it to work, but I am lost and need help. Thanks Rod.

[@zachb9733]

So If I were to wire a relay for my headlights to have dims and lows on at the same time I would wire 85 to ground, 30 to positive battery, 86 to high beam positive, and 87 to low beam positive?

[@alexcordova7655]

I had double fog light but I don't know how to wire it... I used a fog light kit with 30 amp, and everytimte I turn on the fuse blow up.. I don't know if a need to buy another FL kit and keep this separate with fuse and relay and connect to a single switch ?

[@boseimm1]

Use the wires already there.

[@mikeashford9240]

Thank you for the video but I am trying to update a 1988 Ford Ranger 4X4 to the newer and brighter lights not just the headlights ........

[@calebclark7959]

What about 3 headlights. I have a honda shadow and i ran a similar set up for powering 3 light bars but i could only get 1 lit for low beam and the other 2 lit for high beam. I want my low beam light to keep running when i switch to high beam so that all 3 are on, but in low beam only 1 of my lights

[@a075923]

Does the headlight switch protect the entire circuit? Looks like something would be needed between the battery and relay. Thanks

[@racghineering]

Common problem... In indonesia, always happen a burned switch/ brokelamp

[@TX_Lawyer]

Do u need separate relays if you have fog lights as well?

[@joasruba247]

hello I have a question... how to connect headlights high and low beam in a single relay?

[@swapnalipatil9310]

Same quiry..why not use 1 relay for these

[@BikerStuff]

@@swapnalipatil9310 you need a separate relay for each circuit (beam). You can get switching relays but the extra wiring needed makes it a harder job. Come on, relays aren't expensive, buy 2.

[@charliedee9276]

You can but you still have to have another to energize the second one. A 4 pin to energize the 5 pin with both h and l beam coming off the 5 pin, 87a low beam and 87 high beam. Feed 12v supply to 4 pin 30 with 87 feeding 30 on the 5 pin. Low beam switch energizes 86 on the 4 pin and high beam energizes 86 on the 5 pin. Tie the grounds and call it good.

[@malgers2005]

good video sir now i know

[@MoparMan-ff8fb]

ok so I just watch your video . where is the power coming from? still from the factory switch or a separate power source? if a separate power source what do you hook up to? I want to get a kit to do this to my 65 dodge dart and my 82 dodge d150 and my dad's old 78 chevy truck .

[@mr.b3168]

The lights get the power from the battery on a shorter more direct wire which allows for less voltage drop meaning brighter lights. The old power source (Light switch inside car) is now used to activate the relay to allow the power from the battery to travel to lights.

[@mvpaps4444]

What if i want both hi and low to be on but if im on low the high should be turned off like a normal headlight system

[@deepakdipu7025]

Sir good video

[@christinemedranovaa2108]

Is this including single lights.

[@manzoorhussain2703]

What's the meaning of following abbreviation in auto wiring?? 1. HTR. 2. Door dl/s. 3. Ami. 3. St. 4. IG. 5. M Htr. 6. Def / up.

[@samkitty5894]

Are headlight relays always under power? I noticed on my car, with no key in ignition, and with headlight switch removed, I still have power to the headlight relay. If I pinch the contacts with my fingers, my headlights come on.

[@umangu]

I have H4 wiring where the same set of wires supplies power for both low and high beams. Do I need dual relays or will 1 relay suffice?

[@tommi3520]

wondering the same thing

[@queendavid6782]

hello I want to now control box

[@dudenli]

Don't forget to protect your headlight switch or BCM from relay's voltage spike. add Diode to protect your car

[@santanaman6783]

Where would the diode be added in what section

[@dudenli]

@@santanaman6783 in the relay's coil pin 85 and 86 search for the relay flyback voltage on google i can not put image here

[@robertjackson7590]

You can find relays with a resistor or diode already built in and save the trouble. Factory headlight relay in a 70 Chevelle uses a resistor across 85 and 86. That's what I'd match. Induction Kick reverses the polarity and multiplies the voltage 4-6 times input voltage. With an ECM I'd use the Diode but this is a manual switch.

[@BAHRacingTeam]

I’m building a drag race only 1989 mustang. All the factory wiring has been removed. I purchased new headlight, marker light and park light plugs. I’m looking to just run these to a basic switch to activate low beams just for racing at night. Not concerned with high beams. Also just tail lights, and not concerned with brake lights working. What do you recommend? Thanks

[@nonyabidness6492]

Look up the channel "ratty muscle car" He's got a complete series for this

[@philipvillar9428]

how can it be,f there's no wire ground at light

[@AztecWarrior69]

Seems like you should or the kit should come with Ground wires for the lights. What's the point if that current is traveling on stock smaller AWG wire?

[@tonyfremont]

You definitely need to ground the headlamps. If they're short and straight to a decent body ground, you don't really need to increase their size. Shorter wires can be smaller gauge and still work okay. Current flow AND length are how you should size wire. There are charts all over the place. Be careful about copper clad aluminum (CCA), stay away from it, it's garbage. You want rea solid copper (OFC) type wire. If you crimp connectors, check temperature of them in operation to be sure you don't have some resistance in there. Make sure nothing gets hot, check every connection point, plus the wire itself.

[@guest2007]

27 dec 2019 2:23 am est:thanks, i don't see car-alternator-icon so car-alternator give electricity to battery then battery give electricity to car-head-light ? car-alternator does not give electricity to car-head-light, directly ?

[@edwardferguson7101]

Thank you a bunch

[@rabahotsmane7311]

hello my name is Rob I have problem with 600 Honda Silverwing every time I start the bike the fan keeps running never stops and some fuse get burn what I should do please let me know thank you very much

[@ignatuissampie8054]

Hi Pls advise I have a polo classic whit two sets of wires for the headlights. Do I put the left and right side dim / bright wire toghether

[@Mazda75]

The temperture switch that activates the fan is bad. Is located on the bottom part of your radiator.

[@suyononano3576]

Thanks 👍

[@aleepdhar5456]

How to wire the Toyota corolla 2006 model.

[@charliedee9276]

Use a 4 pin relay for the one getting power from the vehicle, then you won't have an unused terminal on the other.

[@andycarranza4125]

Is it normal for the red wire from the battery to get hot while running? It's fused before going to the relays.

[@jordanturner97]

It shouldn't get hot, Sounds like the wire is too thin or you have excess resistance. Try using a thicker gauge of wire

[@Junaidkhan-uc7pl]

This coniction same to 24v rely Pleas rply me

[@ismaeldossantos3296]

No fuses? I fit a 4 way fuse box.

[@dharmveermandal3674]

Thank you 💕 g

[@bertapartv]

Nice boss Keep safe blogging boss

[@rajbahadur2162]

Good video sar laik

[@techtoday5784]

Can i use this for 6 low beam bro?

[@rajpuramohsin3394]

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[@Rameshwarj1760]

How to connect duel head lamp relay to bike

[@choudharysahab4953]

Witche app you used i want make like this video i am from india

[@robertlcervantez9964]

What is the name of the wiring kit. I want to buy one

[@mohammad45h]

سلام سپاس درود وهزاران 👍...

[@nathanrenzsimon6277]

where is the number of relay.?

[@jelotech579]

NicE diagram

[@markbudol9428]

You forgot the one terminal in headlight connected to ground

[@marknicerio4196]

its quite confusing.... u didnt indicate the 87, 86 30 and 85 dunno where it is.... sorry for the request im studyng autmotive

[@alanlusica5791]

Ser give diagram head of isusu elf connection

[@choudharysahab4953]

How to use make like videos please tell me

[@Malaysiashuffler805]

Let's Fix adobe movie maker

[@gauravjindal0203]

Aak video ase banao ke Eicher tractor ma light or uska connection battery kasa Kara or vo battery charger kasa kara

[@nirjitmaibam6078]

How can we increase the brightness ?

[@alanhowarth2801]

Higher wattage bulbs

[@teddy07diaz52]

How to wire a two horn

[@shantilalgohil4387]

Where is input headlight switch ?

[@ROCKOCTANE]

Wow no fuses

[@SandeepSingh-bn9ws]

Neutral Terminal not connected

[@boseimm1]

If that doesn't work let me know. I have another theory

[@chirkarahul7252]

Think

[@habtamuwubet6175]

It is better show all lighting system i.e head,turning,tail light with rely in details

[@sangitapandya7928]

Jitu rajkot ok

[@rameshhiremani7350]

Eicher

[@jamesmoore5598]

7161

[@deniscapeta2375]

you are missing flyback diode...without it you will after some time burn your car battery...

[@rtchow3000]

your design diagram is fault. if you connect your headlights directly to the battery, you taking a lousy chance on battery kill the high lamp. mine connected to the starter, to the fuse box for safety. you are pulling too much juice off the battery when the headlight turns on. there is no safety on this schematic, might even fry the wiring when the high beam turns on.

[@darkstarug6703]

You are very right

[@vjntube]

தமிழில் kzbin.info/www/bejne/hp3NaYGkdrqJjqc

[@tonyfremont]

Might want to ground those head lamps, just sayin'.

[@marksmith5771]

You said absolutely nothing about the dimmer switch.

[@chop_chuiey2327]

guess you failed ohms law and schematics...look again circuits and read the comments on coil relay pins connections. cheers happy motoring

[@collenpapama2163]

Don't understand no numbers

[@amilhasan3724]

Headlight Fix kzbin.info/www/bejne/kKvcdqGlrbmKZ7c

[@jimhiscott2918]

Well that was next to useless....thanks🤨

[@mikeortiz6584]

SMH😒 Half Azz Video..

[@jeetenderkakkar7570]

Beggarrr poorrr

[@ismaeldossantos3296]

That is the worst diagram i ever seen