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Lights won’t stop hyperflashing??

farrari

By farrari
in Troubleshooting & Recalls

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farrari Enthusiast

farrari

Posted
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I have a 2017 Silverado 1500 High country with factory led tail lights. I bought aftermarket smoked led taillights. Lights are supposed to be plug and play and have resistors that come with and plug in but the company doesn’t make them for oem factory taillights. So I got new tail light harnesses for like an lt model and still have hyper flash. I bought plug and play load resistor harnesses for these harnesses they plug in perfectly but still hyper flash! What can I do? Can I have the bcm or ecu tuned to change the resistance as I know these new trucks don’t have flash modules

 

heres the links to the products I bought 

tail lights- https://www.cjponyparts.com/led-taillight-black-housing-with-smoked-lens-pair-chevrolet-silverado-2014-2018/p/TLLED96/

 

plug and play resistors- https://undergroundlighting.com/products/7443-plug-and-play-resistor-stops-hyper-flashing-and-errors?rq=yr_2017~mk_chevrolet~md_silverado-1500-w-led-h-l~ju_rear-turn-signal

Rukus Enthusiast

Rukus

Posted
Posted

You should not need resisters.  You have factory LED already.

farrari Enthusiast

farrari

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Rukus that’s what I thought but still flashes and I think it’s cause these lt model wire harnesses don’t have that pin in the plug in for the built in led resistor 

farrari Enthusiast

farrari

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Snowcamo yes I know and I contacted them and they don’t make ones made for oem leds and no other company makes these lights and I like these the most so I bought different wire harnesses and it works but have hyperflash

SirenRed16 Senior Enthusiast

SirenRed16

Posted
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The only thing I can think of is the load resistors are the correct ones you need so that's why you're still getting hyper flash.

Sent from my SM-G955U using Tapatalk

farrari Enthusiast

farrari

Posted
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Snowcamo yes I know and I contacted them and they don’t make ones made for oem leds and no other company makes these lights and I like these the most so I bought different wire harnesses and it works but have hyperflash

farrari Enthusiast

farrari

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The resistor harnesses I have have two 50w 6ohms to each bulb which as far as I’ve seen or heard is the most common 

SirenRed16 Senior Enthusiast

SirenRed16

Posted
Posted
The resistor harnesses I have have two 50w 6ohms to each bulb which as far as I’ve seen or heard is the most common 
Have you considered splicing in the resistors to the harness?

Sent from my SM-G955U using Tapatalk

farrari Enthusiast

farrari

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That’s what I started off with I bought some resistors but before I did anything I did reading to make sure I did it right and saw I needed two resistors per bulb and at the time didn’t have enough resistors and saw these plug and play harnesses with resistors built in so I figured that would be easier 

farrari Enthusiast

farrari

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Does anyone know if you have to have the exact wattage or ohms going to the bcm  that it’s tuned to or can you have more? Cause if you can have more in that case a bigger resistor should work theoretically or not??

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
13 minutes ago, farrari said:

Does anyone know if you have to have the exact wattage or ohms going to the bcm  that it’s tuned to or can you have more? Cause if you can have more in that case a bigger resistor should work theoretically or not??

Have you had a chance to put the factory lights back in to make sure everything on the truck is still working correctly? You might have shorted something out with the new lights.

farrari Enthusiast

farrari

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JomCost2014 no I have not. That’s a good idea I never thought of that. But since I changed the wire harness from the led one to the regular harness with bulbs wouldn’t it still hyperflash with regular bulbs back in or not? Or are you saying the old led harnes and lights and everything??

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
14 minutes ago, farrari said:

JomCost2014 no I have not. That’s a good idea I never thought of that. But since I changed the wire harness from the led one to the regular harness with bulbs wouldn’t it still hyperflash with regular bulbs back in or not? Or are you saying the old led harnes and lights and everything??

it probably will be PITA, but I would put it all back to stock form. Maybe one side at a time just to compare what is going on, maybe easier to track down the problem that way.

farrari Enthusiast

farrari

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What is PITA snd if it does work stock then I’m back to where I started correct? And thanks for the help!

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