You, sir, are an exemplary explainer. I’ve been putting off this task for five weeks. I just watched this. Then I clicked subscribe. (I only have about 30 subscriptions...). Respect.
This is the exact video i needed. You explained this to a T perfectly. Now I can confidently install the resistor and finally get rid of that annoying hyper flash. Thank you kind sir!
How is your video not the number one spot on this subject?! Very informative video and now I feel confident on fixing the hyperflash issue the other videos didnt really go in depth as this video great content!
Your a live saver man thank you! I went and picked up a multimeter and the resisters tonight to fix the issue on my jeep. I had known putting LED in where halgonens were stock it would trick the car but I didn’t know I needed a resistor. Anyway, thank you!
Thanks - This helped me install them. I didn't use the crimps but rather spliced each wire and soldered them in then taped and used some heat shrink. I had to extend the wires from the resistor as I didn't have a close mounting point that was metal.
Thankyou for the detailed info. I went through several videos before finding yours. Yours was the only one to tell me why or why not to resistor-bridge the patking light wire. I know that you said it would overheat but why not if I can mount the resistor to metal so that it will not melt anything. Won't the reduced wattage extend the life of the leds?
thank you so much! that helped incredibly, to help anyone out that has different color wires, I had black wire, green/red, and brown. connected brown to green/red and worked perfectly. thanks again for making this video.
I was having so many problems trying to get my turn signals to flash and this video helped so much. You would think some directions would come in the box but thanks it was a huge help
It can sometimes be easier to just change the blinker relay to an LED compatible one, a new blinker can flash all bulb or all led or a mixture of both.
Even by doing so some vehicles still need at least the front directionals to utilize resistors on them. My 03' Tahoe for example. I have a LM487 led flasher I just installed and still have some problems with flashrate, led's in mirrors only partially lit and dim glow in dash. I will be installing resistors in morning to correct the problem.
Very good video. Was wondering what the hell happened when I installed led turn signals on my klx 250 and from forums and Google I ended up here. Thanks liked subscribed and shared
Thanks for this great video. I just have a question. I installed Sylvania LED turn signal bulbs three each side (one front two in the back) for a Chevy Tahoe. I believe I need a load resistor for each LED BULB that means six of them in the car. My question is how can I figure out what watts should I buy (Sylvania sells 5 Watt and 10 Watts load resistor, and one more with no specific rating) each is 12V 6 Ohms. But I don’t know actually what to buy, and now I see you’ve got 50 watts resistor and now I am more confused
These work, but the much better, cheaper and safer way to fix this situation is to just buy a new Turn Signal Relay that is rated for LED bulbs. Literally, that's it. You don't have to buy a resistor for every bulb, and install all of them, just pull out the old relay and plug in the new one. I drive a 1992 Toyota Pickup and replaced every single light to an LED, and had to either buy a bunch of these things, or just one LED relay.
I tried that, but couldn't find one specific to my 2004 1.8s Nissan sentra. I bought a generic one, and the blinkers work but only when the headlights are off. As soon as I turn on the headlights, the blinkers stay ON. But I can sort of get the blinkers to work my manually switching the blinker on and off. Any ideas ???
I just purchased new headlight assembly’s with led turn signals on my 2013 Mercedes-Benz GLK 350. They came pre-wired with resistors but, they do not work. Any suggestions?? Tom
I completely understand your video thank you. My question is, what if I have 2 signal taillight bulbs on the driver and passenger side? Like the 99-04 mustangs? There is actually 3 bulbs per side but only 2 are for the signal. For a grand total of 6 bulbs for the taillights. The kit I bought came with 6 LED bulbs and 2 resistors. Do I actually need a total of 4 resistors? 1 for each bulb? Resistors are the same exact ones used in your video. Thank you so much for any info, I am electrically declined.
Great video and thank you for explain everything. Just want to add a little something. I just did this mod and everything works great as described but noticed that these electric clamps suck better of just soldering them together to get a better contact point. Again thank you for the video
It is important that the wire clamps match the wire size applied. The metal contact inside the clam has a slot which is a specific width. If you use a clamp with a slot too wide, on a wire too thin, the connection will be poor. Be sure to match the wire gauge with the clamp gauge. But yes, if you can solder, it will always be better than a crimp connection.
+Enlight Automotive thank you for the quick reply. That is a very good point. I saw the slot on the clamp but I figured that it would just splice the wire. I also noticed that the car wire was very thin 🤔 but one side works fine the other is hyper flashing. I might not have put enough pressure to cut the thin line. Thanks
Most of these smaller gold type resistors are not designed to be run continuously. Only pulsed loads are safe. If you hook them up to a fog light circuit they will get extremely hot and wont last long.
OK, I have a 2005 TJ Wrangler, it has the 7443 three-wire socket (Front turn signal and park light in one) that had a factory incandescent bulb, I changed it over to a LED on the front and of course, hyperflash began. I am waiting for load resisters to arrive, but when I do, do I need to worry about the parking light being on constantly on the front lights? I did upgrade to a heavy duty flasher/turn signal relay also. Now the rear lights are really hard to get to since the wire cables are shielded by Jeep beyond belief, so I might just keep them incandescent (back-up light on top, turn/park on bottom inside turn signal box) Right now, until I get everything running normal, I am not driving it, ran a few tests as I went along and the electrical system is going crazy, doing things I have never seen! Is a LED flasher/turn signal relay compatible with incandescents?
Thank you maybe this will fix my 93 CB750 led rear signal light problem. Literally the same 3 wire setup without a diode configuration in the headlight.
Trying to do this on a Harley. Can I mount the resistor directly to the new LED wires then plug them in? The resistors actually fit behind the LED lights right in the light housing.
This video cleared a lot of concerns for me. My only other concern is, I've seen two wire lights used as marker and turn signal. How are they able to do that?
I have a question. I need your advice please. I have installed led rear taillamps in my 1941 chevy. To make them actaully flash, I had to wire in each circuit, l&r, a standard type3 clearance lamp. They work now. Only thing is, the dash indicator lights don't work. Wire in resisters?
10:25 "metal to metal helps with heat dissipation" if it's winter time and cold out but not summertime in Phoenix. I would suspend them in the air instead.
INCORRECT... AN LED IS A DIODE. This is the only real issue becausd power can only go one direction thru the bulb and the computer is sending power while checking current but ALSO looking for continuity to ground thru the bulb and if it cannot do all three you get a code and the on-off-on-off flicker. Even the older cars have hyper flash because the relay biases power thru the bulb and it cannot do this with an l.e.d or a circuit with a diode in it. Because though it can send power thru the bulb, the relay cannot see ground thru the bulb so after the first blink it goes rapid fishing away because relay has no ground to keep it on the "off" cycle thru a diode. therefore the computer nore the flash relay can use this as it is an incomplete circuit one way but is propper the other way. You need a sure circuit via a wire/ filament resistance and not a diode as the power thru the flasher goes both directions in each bulb, this is how it is designed to my understsnding... for instance you should be able to easily replicate this by puttung the factory bulb back in and put a diode in line on either wire and have the same issue hyper flash and code, because there needs to be a ground reference. I figured out I can use a 25 ohm 25watt resistor that has very little heat due to its low power consumption @14.7 volts due to its high resistance value and have no hyper flash or codes. And the resistor draws less power than the bulb that was in the socket to begin with and it was because I was nervous with the heat the normal resistors is get online so now I order specifically 30ohm resistors (25watt for turns and low power bulbs) and 30ohm 50watt resistors for headlights (though im sure the 25watt resistors would be sufficient on both applications without all the unnecessary heat and waste of power with over sized resistors and severely under rated resistance values. I would "never go less than 16ohms resistance on a bulb circuit to correct a fish issue or code issue. Just plain stupid and id say that's what a non educated person would do 6 ohm and 50 watts is just nuts The blinker isn't even 50 watts! My resistors draw less than 5amps and correct the issue safely! With less heat
Yep, there's not much point changing to LEDs if it's going to require a low value shunt resistor and end up drawing the same amount of current anyway. The higher resistance resistors are good idea. But unfortunately I think the kit manufactures will stick with the low resistance resistors, which are equivalent to the resistance of the incandescent bulb being replaced because it will ensure compatibility to any vehicle. The better option but dearer than using stunt resistors would be changing the blinker unit to an LED type, if the vehicle uses them.
Thanks for the fine instructional video. I replaced both the front and rear turn signal bulbs on my 2004 Lexus GX470 and installed the load resistors as you described. No flicker or signal errors whatsoever. So try and figure this. Most people probably wouldn't have even found this "issue". To check my work I left the hazard lights flashing for about five minutes to make sure all was good before remounting the rear tail light housings. I also wanted to see how hot the resistors really get after hearing all the warnings. Checking the rear drivers side first, the resistor was as cool as the weather here in NY. Mid forties. It was cold. Checking the rear passenger side, it was screaming hot. I've had them in over a day with absolutely no issues at all regarding the turn/hazard light operation. They work perfectly. But I can't help but worry that something is not right. Any explanation for this. Please advise
Es tolerable resistencia al agua? Por ejemplo, en condiciones de lluvia? Me pregunto cómo se instala detrás del faro corre ese riesgo. O es inofensivo?
Thanks, this fixed the hyper flash problem on my 09 Altima Coupe taillight blinker, 2 wire system. I love my car but wow - Nissan, at least this model - does not leave you much room to clamp down that metal part away from anything that can melt. Would love to upgrade my front lights..again not quite an easy process.
thank you nice video very informing! just a short question. If you connect an led strip or bulb in addition to an existing bulb (for instance installing a thin led strip with brake and turn signal) by using the wires going to the existing bulbs isn't the existing bulb going to absorb most of the power and thus prevent the rapid flashing side effect?
If you are simply adding an LED strip, there is no need for resistors if you are using the factory incandescent bulb. The incandescent bulb is the resistor in this case.
Hey, if the 1157 brake bulb and 3157 blinker bulb consume 27watts on high light, and 7 watts on low light each, can I use 35 watts load resistors for the High light instead of the 50watts one?
God bless you. I've been wondering the same thing. Also thinking of adding additional lights. I could use fender and or grill lights. Perhaps 21 watts is close enough to 27? It would be a shame to switch to led only to gain some brightness and lifespan throwing the rest to some stupid resistor to generate heat
the Resistors Wattage Rating and is defined as the amount of heat that a resistive element CAN dissipate for an indefinite period of time without degrading its performance. So 50 watts means it can handle up to 50 watts. Does mean it operates at 50 watts.
I left my resistors hanging hitting the plastic and rubber of my housing but what I did I put some air duct foil tape all around where I know the resistor will touch. It works really good and you can't notice it being there only if you open and take out the taillight housing.
My Mustang has separate warning lights on the dash to let you know when a tail light is out AND when a brake light is out. Does that mean I need two resistors on each power lead on the 1157 bulb? Another question... Do all sockets need to be tapped into? Or will 1 resistor (or two depending on the 1157 issue) be needed? Or does every bulb need its own resistor?
I seem to have the opposite problem. Installed replacement 1157 LED bulbs in my '39 Studebaker. Signal light work, but tail lights do not light up. Any suggestions will be appreciated.
Can you help a buddy of mine just stuck the end pieces of the resistors in the same slot of the ground and turn signals. But now it's saying battery changing that didn't happen before
Hope you can answer my question. I have an old car, there is no ground wire, the body is the ground. I have hooked up my resistors to the flasher wire and the body bracket of the light. The resistor gets really hot but the lights continue to hyper flash. Do you know the answer? Thanks,
can I use (4) 50w 6ohm resistors for all 4 turn signals? I heard some people say you should use 3ohms 50w for 4 turn signal. will it make a big difference? and 6ohm 50w if only 2 turn signals
Thanks for the video! How did you determine to use a 50w resistor for the 20w halogen bulb replacement? I'm intending to add a resistor to an LED reverse bulb setup and wondering what size resistor I should buy.
The "50w" Resistor rating represents the maximum power level the resistor can dissipate. It rated for up to 50W of power dissipation. For example, for a 12V system with 6Ohm resistor, the current flow is 12V/6Ohms = 2Amps. The power dissipated by the resistor is 2 Amps * 12 Volts = 24W. Now 24W
ok i have a dune buggy i changed out rear turn signals to LED'S they worked , now the FRONT , they did not blink just stayed on , so i imagine i need more current draw on that circuit as well ? to make my 2 front ones blink what size resistor should i use ? how much resistance ? if you know that , thanks
I have a Chevy Colorado.. now, I want to run LEDs for the running lights. Do I need load resistors for running lights? Secondly, my turning signals are part of the running lights meaning when I'm not using the directional function they stay just still and act as a running lights. Will my directionals have issues due to being a running light as well? thx
Normally you would not need resistors for the running lights. You must be very careful when using these type of resistors for running lights or anything that will be on for extended period of time. These gold resistors will not last very long under continuous current load without a very large heat sink, they will also get extremely hot. It sounds like the bulbs you have will be a dual-filament bulb where one filament acts as the running lights, and one for the turn signal function. In this case, you will only want to run resistors on the turn signal function.
im having this same problem. when parking lights are incorporated with the turn signals, relays are used to turn the parking lights off then back on which causes a heat issue with resistors being constantly powered.
I have the Same truck but with 2 gray wires and 2 black wires and 1 blue wire in the socket. I know the black ones are ground but I don't know which one is for the signal wire
i have a question....I want led bulbs 3157 in my tail lights in my trailblazer. so I put some in the top which is the stop/parking light. when I put the bulb in one way the brake light works but the parking doesn't when I take the bulb out and turn it over the parking light work but the brake light wont. they wont work at the same time...would a resistor fix my problem or is it something that just wont work
It sounds like you might have 3156 bulbs. Or, sometimes vehicles use 3157CK style bulbs which look similar to 3157 bulbs but are wired differently. 3156 bulbs have only one metal contact on each side of the bulb. 3157 should have 2 contacts.
Could you help me pls? I bought a led tail light with intergrated turn signals for my Kawasaki er6n 2007 and I have to buy load resistors. 2 resistors: 25W 8Ω 12V each, wouldn't be right? I have seen photos with similar tail lights which packets include a pair of resistors, 20W 5Ω 12V each. What should I do???
So my light has like 5 wires on a Honda Accord my turn signal keeps flashing fast I try the blue and the green it don’t work when I do it with the blue it works but it gets hot can you help
I have the exact same load resistor you show connected to H7 yellow LED fog lights.. They are on 7 hours, will the load resistor blow out? Is there any higher quality load resistors other than the ones you show? thank...
Mike Ovanes Hello, it is very dangerous to use those yellow gold resistors in a fog light application. They are not designed to be run with constant current. Only periodic use for turn signals. They will get extremely hot if there is current running constantly though them as with a fog light application. I can provide you with higher quality resistors that can be run constantly. Please send us an email for more info: sales@enlightauto.com
Enlight Automotive - The best LED and HID lights for you vehicle Hey guys! Very informative and helpful video! I have a question though. My car is Honda Accord Type R 2001. I want to replace my stock turning signals with aftermarket LEDs. I am from Finland and i both from the local Motonet store aftermarket electronic LED flasher relay ( 12V MAX 30W)..,i found my stock flasher relay under the steering,and my question is,do i need to replace all the stock bulbs ( 6) with LEDs and the relay,or i need to do something else and what is that? I am not really good at electronics,but just basics. Thank you!
I followed these instructions on only one taillight. 2 bulbs 2 resistors right? I still got the hyper flash. do I need to do the front on the same side to get rid of that flash?
I need advice on LED swap. I did my rear stop, turn, tail (all in one) on my 95 f150. I don't have hyper glass and they work fine without the resistors. But my question is, the lights seem dim, do I need to install the resistors to make the LEDs brighter? :)
I have a 2002 WJ. I got switchback LEDs for my front turning signals. My 3157 bulb has 3 wires. One says ground, another says major and another says minor. I should go ground and minor right? Guessing that minor is the blinking light. Please advise if you can...Thanks.
+Juan Summers I am not 100% positive but my guess would be that Major is the high brightness mode, and minor is the parking light mode. If that is the case, you would want to put the resistor across the major wire. However, you best option is to test the wires with a volt meter or test light to be sure.
I've just put LED taillights + LED brakelamp on my car, and now the LED brakelamp, lights up, all the time, even, when not touching the brake, will it help, to add some resistors to the taillight, og the brakelight circuit?
***** Yep, I do have parking lights on (Can't turn it off, due to the laws in my country.) The car is a 2002 Citroën Xsara. But I've noticed that, the problem is there only when I have the ignition turned on, if I just turn the lights off, without ignition, the lights light fine. (So I think theres to little resistance?)
***** Well, so you don't think the resistors will work? The brakelight turns on, a little, when the igniton is turned on, and if I turn the igntion off, and still have the ligths on, the brakelight will turn off?
on my 77 blazer , I put 4 inch sealed beam leds and it don't hyper flash in fact they just stay on and don't flash. will this resister help my problem?
You, sir, are an exemplary explainer. I’ve been putting off this task for five weeks. I just watched this. Then I clicked subscribe. (I only have about 30 subscriptions...). Respect.
At about 6:00, that was exactly what I needed to hear. Once you explained it that way I now understand it much better. Thanks for clearing that up!
😊
This is the exact video i needed. You explained this to a T perfectly. Now I can confidently install the resistor and finally get rid of that annoying hyper flash. Thank you kind sir!
How is your video not the number one spot on this subject?! Very informative video and now I feel confident on fixing the hyperflash issue the other videos didnt really go in depth as this video great content!
Your a live saver man thank you! I went and picked up a multimeter and the resisters tonight to fix the issue on my jeep. I had known putting LED in where halgonens were stock it would trick the car but I didn’t know I needed a resistor. Anyway, thank you!
You literally, saved my life! Thought I was going to have a brain aneurysm doing my turn signals on my car
Thanks - This helped me install them. I didn't use the crimps but rather spliced each wire and soldered them in then taped and used some heat shrink. I had to extend the wires from the resistor as I didn't have a close mounting point that was metal.
Excellent video. I've been trying to figure this out but I wired it incorrectly. Much appreciated.
Thank you for this video , it helped me sort my problem with the over heating resistor .
Thanks for clarifying that the brake light will cause heat problems. Amazon reviewers are showing pictures of a resistor on each line for some reason.
Thank you for this video bro! I just wanted to know why and what are resistors. You answered my question! 🙌
Thank you. Awesome explanation of the proper method to wire these units.
Thankyou for the detailed info. I went through several videos before finding yours. Yours was the only one to tell me why or why not to resistor-bridge the patking light wire. I know that you said it would overheat but why not if I can mount the resistor to metal so that it will not melt anything. Won't the reduced wattage extend the life of the leds?
thank you so much! that helped incredibly, to help anyone out that has different color wires, I had black wire, green/red, and brown. connected brown to green/red and worked perfectly. thanks again for making this video.
Thanks much for taking the time to explain this to the rest of us. God Bless!
I was having so many problems trying to get my turn signals to flash and this video helped so much. You would think some directions would come in the box but thanks it was a huge help
Do recommend installing a resistor to each led bulb connection site? I have a 1980 Jeep cj 7 with two front signal lights and two side/fender lights.
If i have LED's for the front and rear blinkers do i need 4 resistors or just 2?
It can sometimes be easier to just change the blinker relay to an LED compatible one, a new blinker can flash all bulb or all led or a mixture of both.
RetroCable.com my 2014 jeep wrangler doesn't have that as an option. The ecu controls the flash. Never knew they did it like that
My dodge ram doesn't have them. The new rams or dodge vehicles dont have relays it's in the trim system so we have to use these
Even by doing so some vehicles still need at least the front directionals to utilize resistors on them. My 03' Tahoe for example. I have a LM487 led flasher I just installed and still have some problems with flashrate, led's in mirrors only partially lit and dim glow in dash. I will be installing resistors in morning to correct the problem.
@@discoversunshine you can try to coding your ecu in vw its easy
Would you need to do this for led taillights as well
Very good video. Was wondering what the hell happened when I installed led turn signals on my klx 250 and from forums and Google I ended up here. Thanks liked subscribed and shared
Thanks for this great video. I just have a question. I installed Sylvania LED turn signal bulbs three each side (one front two in the back) for a Chevy Tahoe. I believe I need a load resistor for each LED BULB that means six of them in the car. My question is how can I figure out what watts should I buy (Sylvania sells 5 Watt and 10 Watts load resistor, and one more with no specific rating) each is 12V 6 Ohms. But I don’t know actually what to buy, and now I see you’ve got 50 watts resistor and now I am more confused
These work, but the much better, cheaper and safer way to fix this situation is to just buy a new Turn Signal Relay that is rated for LED bulbs. Literally, that's it. You don't have to buy a resistor for every bulb, and install all of them, just pull out the old relay and plug in the new one. I drive a 1992 Toyota Pickup and replaced every single light to an LED, and had to either buy a bunch of these things, or just one LED relay.
I tried that, but couldn't find one specific to my 2004 1.8s Nissan sentra. I bought a generic one, and the blinkers work but only when the headlights are off. As soon as I turn on the headlights, the blinkers stay ON. But I can sort of get the blinkers to work my manually switching the blinker on and off.
Any ideas ???
Thank you for the video. You answered a lots of questions. I do lots of led installs on my cars an trucks. An I wanted to know about those.
Insanely helpful. I think you even used the exact resistor that i bought
Thank you for your advise,one question,do I need one resistor for each side ,thank you
Great video. New subscriber. Thanks for sharing.
thank you so much!! there aren't many videos explaining with details like yours.!!! great video it helped me alot..
I just purchased new headlight assembly’s with led turn signals on my 2013 Mercedes-Benz GLK 350. They came pre-wired with resistors but, they do not work. Any suggestions??
Tom
I completely understand your video thank you. My question is, what if I have 2 signal taillight bulbs on the driver and passenger side? Like the 99-04 mustangs? There is actually 3 bulbs per side but only 2 are for the signal. For a grand total of 6 bulbs for the taillights. The kit I bought came with 6 LED bulbs and 2 resistors. Do I actually need a total of 4 resistors? 1 for each bulb? Resistors are the same exact ones used in your video. Thank you so much for any info, I am electrically declined.
Excellent explanation of the how and the why!
Great video and thank you for explain everything. Just want to add a little something. I just did this mod and everything works great as described but noticed that these electric clamps suck better of just soldering them together to get a better contact point. Again thank you for the video
It is important that the wire clamps match the wire size applied. The metal contact inside the clam has a slot which is a specific width. If you use a clamp with a slot too wide, on a wire too thin, the connection will be poor. Be sure to match the wire gauge with the clamp gauge. But yes, if you can solder, it will always be better than a crimp connection.
+Enlight Automotive thank you for the quick reply. That is a very good point. I saw the slot on the clamp but I figured that it would just splice the wire. I also noticed that the car wire was very thin 🤔 but one side works fine the other is hyper flashing. I might not have put enough pressure to cut the thin line. Thanks
Can you use this to completely remove bulb and just put one of these so the car can still think theres a bulb, this is for fog lights?
Most of these smaller gold type resistors are not designed to be run continuously. Only pulsed loads are safe. If you hook them up to a fog light circuit they will get extremely hot and wont last long.
Unfortunately, daytime running lights are frequently on the front blinker, and brakes on the rear
OK, I have a 2005 TJ Wrangler, it has the 7443 three-wire socket (Front turn signal and park light in one) that had a factory incandescent bulb, I changed it over to a LED on the front and of course, hyperflash began. I am waiting for load resisters to arrive, but when I do, do I need to worry about the parking light being on constantly on the front lights? I did upgrade to a heavy duty flasher/turn signal relay also. Now the rear lights are really hard to get to since the wire cables are shielded by Jeep beyond belief, so I might just keep them incandescent (back-up light on top, turn/park on bottom inside turn signal box) Right now, until I get everything running normal, I am not driving it, ran a few tests as I went along and the electrical system is going crazy, doing things I have never seen! Is a LED flasher/turn signal relay compatible with incandescents?
Thank you maybe this will fix my 93 CB750 led rear signal light problem. Literally the same 3 wire setup without a diode configuration in the headlight.
5:20 it's a good thing you said not to do that because that's what I was exactly about to do......good thing I watched the video 🤭🤭🤭🤣😂😂
Trying to do this on a Harley. Can I mount the resistor directly to the new LED wires then plug them in? The resistors actually fit behind the LED lights right in the light housing.
The connection probably won’t be the best but you can try it
This video cleared a lot of concerns for me. My only other concern is, I've seen two wire lights used as marker and turn signal. How are they able to do that?
I have a question. I need your advice please. I have installed led rear taillamps in my 1941 chevy. To make them actaully flash, I had to wire in each circuit, l&r, a standard type3 clearance lamp. They work now. Only thing is, the dash indicator lights don't work. Wire in resisters?
10:25 "metal to metal helps with heat dissipation" if it's winter time and cold out but not summertime in Phoenix. I would suspend them in the air instead.
INCORRECT... AN LED IS A DIODE. This is the only real issue becausd power can only go one direction thru the bulb and the computer is sending power while checking current but ALSO looking for continuity to ground thru the bulb and if it cannot do all three you get a code and the on-off-on-off flicker.
Even the older cars have hyper flash because the relay biases power thru the bulb and it cannot do this with an l.e.d or a circuit with a diode in it. Because though it can send power thru the bulb, the relay cannot see ground thru the bulb so after the first blink it goes rapid fishing away because relay has no ground to keep it on the "off" cycle thru a diode. therefore the computer nore the flash relay can use this as it is an incomplete circuit one way but is propper the other way. You need a sure circuit via a wire/ filament resistance and not a diode as the power thru the flasher goes both directions in each bulb, this is how it is designed to my understsnding... for instance you should be able to easily replicate this by puttung the factory bulb back in and put a diode in line on either wire and have the same issue hyper flash and code, because there needs to be a ground reference.
I figured out I can use a 25 ohm 25watt resistor that has very little heat due to its low power consumption @14.7 volts due to its high resistance value and have no hyper flash or codes. And the resistor draws less power than the bulb that was in the socket to begin with and it was because I was nervous with the heat the normal resistors is get online so now I order specifically 30ohm resistors (25watt for turns and low power bulbs) and 30ohm 50watt resistors for headlights (though im sure the 25watt resistors would be sufficient on both applications without all the unnecessary heat and waste of power with over sized resistors and severely under rated resistance values. I would "never go less than 16ohms resistance on a bulb circuit to correct a fish issue or code issue. Just plain stupid and id say that's what a non educated person would do 6 ohm and 50 watts is just nuts
The blinker isn't even 50 watts!
My resistors draw less than 5amps and correct the issue safely! With less heat
Yep, there's not much point changing to LEDs if it's going to require a low value shunt resistor and end up drawing the same amount of current anyway. The higher resistance resistors are good idea.
But unfortunately I think the kit manufactures will stick with the low resistance resistors, which are equivalent to the resistance of the incandescent bulb being replaced because it will ensure compatibility to any vehicle.
The better option but dearer than using stunt resistors would be changing the blinker unit to an LED type, if the vehicle uses them.
Thanks for the fine instructional video. I replaced both the front and rear turn signal bulbs on my 2004 Lexus GX470 and installed the load resistors as you described. No flicker or signal errors whatsoever. So try and figure this. Most people probably wouldn't have even found this "issue". To check my work I left the hazard lights flashing for about five minutes to make sure all was good before remounting the rear tail light housings. I also wanted to see how hot the resistors really get after hearing all the warnings. Checking the rear drivers side first, the resistor was as cool as the weather here in NY. Mid forties. It was cold. Checking the rear passenger side, it was screaming hot. I've had them in over a day with absolutely no issues at all regarding the turn/hazard light operation. They work perfectly. But I can't help but worry that something is not right. Any explanation for this.
Please advise
Es tolerable resistencia al agua? Por ejemplo, en condiciones de lluvia? Me pregunto cómo se instala detrás del faro corre ese riesgo. O es inofensivo?
Thanks, this fixed the hyper flash problem on my 09 Altima Coupe taillight blinker, 2 wire system. I love my car but wow - Nissan, at least this model - does not leave you much room to clamp down that metal part away from anything that can melt. Would love to upgrade my front lights..again not quite an easy process.
I know this is a old post but I have a question could you add connectors beside the red and blue one like a two pin connector
Great Video, Thanks A lot, My signal lights flash at the correct speed now.
thank you nice video very informing! just a short question. If you connect an led strip or bulb in addition to an existing bulb (for instance installing a thin led strip with brake and turn signal) by using the wires going to the existing bulbs isn't the existing bulb going to absorb most of the power and thus prevent the rapid flashing side effect?
If you are simply adding an LED strip, there is no need for resistors if you are using the factory incandescent bulb. The incandescent bulb is the resistor in this case.
Hey, if the 1157 brake bulb and 3157 blinker bulb consume 27watts on high light, and 7 watts on low light each, can I use 35 watts load resistors for the High light instead of the 50watts one?
God bless you. I've been wondering the same thing. Also thinking of adding additional lights. I could use fender and or grill lights. Perhaps 21 watts is close enough to 27? It would be a shame to switch to led only to gain some brightness and lifespan throwing the rest to some stupid resistor to generate heat
the Resistors Wattage Rating and is defined as the amount of heat that a resistive element CAN dissipate for an indefinite period of time without degrading its performance. So 50 watts means it can handle up to 50 watts. Does mean it operates at 50 watts.
I left my resistors hanging hitting the plastic and rubber of my housing but what I did I put some air duct foil tape all around where I know the resistor will touch. It works really good and you can't notice it being there only if you open and take out the taillight housing.
THANK YOU FOR A GREAT TUTORIAL! (not very many useful videos like yours out there.)
Do i have to put it close to the socket for the resistor to work or can I put it closer to the power ?
do you need one resistor for each turn signal or one for all 4 turn signal ?
My Mustang has separate warning lights on the dash to let you know when a tail light is out AND when a brake light is out. Does that mean I need two resistors on each power lead on the 1157 bulb? Another question... Do all sockets need to be tapped into? Or will 1 resistor (or two depending on the 1157 issue) be needed? Or does every bulb need its own resistor?
Straight to the point, thank you.
I seem to have the opposite problem. Installed replacement 1157 LED bulbs in my '39 Studebaker. Signal light work, but tail lights do not light up. Any suggestions will be appreciated.
Can you help a buddy of mine just stuck the end pieces of the resistors in the same slot of the ground and turn signals. But now it's saying battery changing that didn't happen before
So easy to understand how to do it. Thankyou
Does it require to have 1 resistor per side of the car or every bulb will have a resistor(2 resistors, 1 for front and 1 for rear)?
Did you cut the turn signal wires and insert them or just clip over them
IRON horse so do you cut or clip
Hope you can answer my question. I have an old car, there is no ground wire, the body is the ground. I have hooked up my resistors to the flasher wire and the body bracket of the light. The resistor gets really hot but the lights continue to hyper flash. Do you know the answer? Thanks,
Do you require resistors for a 1157 led type bulb for the Tail Light & Brake Light on a 1967 GM car?
I have a 09 Silverado and I put in the resistors as shown. My right side works perfectly fine but my left side doesn’t work at all
does it mater if you flip over these type bulbs so the filaments inside the bulbs dont get reversed?
5:10 your welcome 🙏🏻
Thanks 5 minutes for a 30 second job
What are the name of those wire taps? And does it matter which resistor wire goes to ground or positive?
can I use (4) 50w 6ohm resistors for all 4 turn signals? I heard some people say you should use 3ohms 50w for 4 turn signal. will it make a big difference? and 6ohm 50w if only 2 turn signals
Thanks for the video! How did you determine to use a 50w resistor for the 20w halogen bulb replacement? I'm intending to add a resistor to an LED reverse bulb setup and wondering what size resistor I should buy.
The "50w" Resistor rating represents the maximum power level the resistor can dissipate. It rated for up to 50W of power dissipation. For example, for a 12V system with 6Ohm resistor, the current flow is 12V/6Ohms = 2Amps. The power dissipated by the resistor is 2 Amps * 12 Volts = 24W. Now 24W
Worked for me, I have an 07 F250 and I added 3157 LED for my turn signals and sure enough. Hyper flash, added the resister and problem solved.
So this is just plug and play? No cutting wires from the harness, etc right?
This sees like a great place for a inventive guy to make low amperage flashers for this problem...a lot of makes and models
Can u ever put black tape around them. To insulate them??
Thanks for that. I must admit, I was about to wire them in series ..lol..
Did you cut the wires to slide the connector clamp on???
ok i have a dune buggy i changed out rear turn signals to LED'S they worked , now the FRONT , they did not blink just stayed on , so i imagine i need more current draw on that circuit as well ? to make my 2 front ones blink what size resistor should i use ? how much resistance ? if you know that , thanks
Great video was very helpful
do you need Multiple resistors for the rear also ? i have leds in the front i think 1156
is it ok to keep led lights hyper flashing…??
I have a Chevy Colorado.. now, I want to run LEDs for the running lights. Do I need load resistors for running lights? Secondly, my turning signals are part of the running lights meaning when I'm not using the directional function they stay just still and act as a running lights. Will my directionals have issues due to being a running light as well?
thx
Normally you would not need resistors for the running lights. You must be very careful when using these type of resistors for running lights or anything that will be on for extended period of time. These gold resistors will not last very long under continuous current load without a very large heat sink, they will also get extremely hot. It sounds like the bulbs you have will be a dual-filament bulb where one filament acts as the running lights, and one for the turn signal function. In this case, you will only want to run resistors on the turn signal function.
Thank you!
im having this same problem. when parking lights are incorporated with the turn signals, relays are used to turn the parking lights off then back on which causes a heat issue with resistors being constantly powered.
I have the Same truck but with 2 gray wires and 2 black wires and 1 blue wire in the socket. I know the black ones are ground but I don't know which one is for the signal wire
These are only for turn signals? What about daytime lights and built in demon eyes?
Okay you answered my question! 🤣
Hey do you know what can be the problem if a the bulb only shows the turn signal amber but the white running light dont work
Huge thumbs up, i was wrong installing it in parallel
i have a question....I want led bulbs 3157 in my tail lights in my trailblazer. so I put some in the top which is the stop/parking light. when I put the bulb in one way the brake light works but the parking doesn't when I take the bulb out and turn it over the parking light work but the brake light wont. they wont work at the same time...would a resistor fix my problem or is it something that just wont work
It sounds like you might have 3156 bulbs. Or, sometimes vehicles use 3157CK style bulbs which look similar to 3157 bulbs but are wired differently. 3156 bulbs have only one metal contact on each side of the bulb. 3157 should have 2 contacts.
the top plug is definitely regular 3157s it has 4 contact points inside the socket and ive been able to use any 3157 bulb.
So after some research I found out that my lights are wired ck...so what type of LED bulb would I need to buy. what number?
When starting the heating resistor? When you're just use flasher?
Could you help me pls? I bought a led tail light with intergrated turn signals for my Kawasaki er6n 2007 and I have to buy load resistors. 2 resistors: 25W 8Ω 12V each, wouldn't be right? I have seen photos with similar tail lights which packets include a pair of resistors, 20W 5Ω 12V each. What should I do???
back in the day i wired a incandescent bulb under the hood to stop hyper flash
So my light has like 5 wires on a Honda Accord my turn signal keeps flashing fast I try the blue and the green it don’t work when I do it with the blue it works but it gets hot can you help
hey, i want to leave my front signal light on all the time but i want them to flash when i make a turn will those resistors work?
Would I need them though? Is hyper flash bad?
I have the exact same load resistor you show connected to H7 yellow LED fog lights.. They are on 7 hours, will the load resistor blow out? Is there any higher quality load resistors other than the ones you show? thank...
Mike Ovanes
Hello, it is very dangerous to use those yellow gold resistors in a fog light application. They are not designed to be run with constant current. Only periodic use for turn signals. They will get extremely hot if there is current running constantly though them as with a fog light application. I can provide you with higher quality resistors that can be run constantly. Please send us an email for more info: sales@enlightauto.com
Enlight Automotive - The best LED and HID lights for you vehicle Hey guys! Very informative and helpful video! I have a question though. My car is Honda Accord Type R 2001. I want to replace my stock turning signals with aftermarket LEDs. I am from Finland and i both from the local Motonet store aftermarket electronic LED flasher relay ( 12V MAX 30W)..,i found my stock flasher relay under the steering,and my question is,do i need to replace all the stock bulbs ( 6) with LEDs and the relay,or i need to do something else and what is that? I am not really good at electronics,but just basics. Thank you!
I followed these instructions on only one taillight. 2 bulbs 2 resistors right? I still got the hyper flash. do I need to do the front on the same side to get rid of that flash?
Yup. On each bulb you swapped out. One front one rear. They sense sepately
I need advice on LED swap.
I did my rear stop, turn, tail (all in one) on my 95 f150. I don't have hyper glass and they work fine without the resistors.
But my question is, the lights seem dim, do I need to install the resistors to make the LEDs brighter? :)
Maybe you have an electronic flasher installed. As for dim led's you probably have bad led's
I have a 2002 WJ. I got switchback LEDs for my front turning signals. My 3157 bulb has 3 wires. One says ground, another says major and another says minor. I should go ground and minor right? Guessing that minor is the blinking light. Please advise if you can...Thanks.
+Juan Summers
I am not 100% positive but my guess would be that Major is the high brightness mode, and minor is the parking light mode. If that is the case, you would want to put the resistor across the major wire. However, you best option is to test the wires with a volt meter or test light to be sure.
major is turn signal and minor is parking light
I've just put LED taillights + LED brakelamp on my car, and now the LED brakelamp, lights up, all the time, even, when not touching the brake, will it help, to add some resistors to the taillight, og the brakelight circuit?
*****
Yep, I do have parking lights on (Can't turn it off, due to the laws in my country.) The car is a 2002 Citroën Xsara.
But I've noticed that, the problem is there only when I have the ignition turned on, if I just turn the lights off, without ignition, the lights light fine. (So I think theres to little resistance?)
*****
Well, so you don't think the resistors will work? The brakelight turns on, a little, when the igniton is turned on, and if I turn the igntion off, and still have the ligths on, the brakelight will turn off?
Thanks for the video just fitted these to my fiesta, just need to find somewhere to mount them!
Holy Christ, we sure took the scenic route today, didnt we gang?.
on my 77 blazer , I put 4 inch sealed beam leds and it don't hyper flash in fact they just stay on and don't flash. will this resister help my problem?
It sounds like they may be wired incorrectly. Are these aftermarket LED headlights?
They actually tail lights with the three prong connection. Their not wired wrong , I haven't changed any wires.
Can we save power on resistor
Thank you so much sir👏🏼🥸
the hyper flash went away but now when using the signal the opposite turn signal flashes very dim. Any ideas???
If lead bulb dies would i get an error to know it?
Thank you, very understanding video..