What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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Actually, I don't think I've ever seen a turn signal hyperflash so I'm not sure how fast this hyperflash is.

I do know the LED teardrop taillights on the '33 hotrod can be selected with a jumper on the backside to work as normal or to flash twice then stay solid when the brakes are pressed. It's supposed to be more visible/safe/eye catching.
 

RooTBeeRthe1st

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the resistance is not enough with the higher voltage, DRL runs on slightly less power
I just realized, this uses the same six LEDs for the clearance light as it does for the turn signal. So when the clearance lights are on and being powered, then the turn signal is triggered it's just adding more power to brighten them up and flash them so that's when it thinks that the bulb is burnt out and hyper flashes.
Amazon just ordered some plug-in resistors so I'm going to pop that in and see if it does the trick for now.
ordered Auxito led turn signal etc. bulbs. I hope they work good with no problems.
I went with these Amazon bulbs.
My alpha Rex headlights use a different bulb and the OE Tahoe lights.
 

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I just realized, this uses the same six LEDs for the clearance light as it does for the turn signal. So when the clearance lights are on and being powered, then the turn signal is triggered it's just adding more power to brighten them up and flash them so that's when it thinks that the bulb is burnt out and hyper flashes.
Amazon just ordered some plug-in resistors so I'm going to pop that in and see if it does the trick for now.

I went with these Amazon bulbs.
My alpha Rex headlights use a different bulb and the OE Tahoe lights.
You have clearance lights on the top of your truck?
 

RooTBeeRthe1st

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Actually, I don't think I've ever seen a turn signal hyperflash so I'm not sure how fast this hyperflash is.

I do know the LED teardrop taillights on the '33 hotrod can be selected with a jumper on the backside to work as normal or to flash twice then stay solid when the brakes are pressed. It's supposed to be more visible/safe/eye catching.
It's obnoxious.
You have clearance lights on the top of your truck?
No, sorry. "Marker lights" "running lights" "parking lights"
 

RooTBeeRthe1st

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Fixed it(for now) with Amazon next day plug in resistors.


Now I have to figure out how/where to stow this monstrosity.
 

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RooTBeeRthe1st

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I had one like that on my yukon I mounted it here, not sure if there is clearance on the chevys
View attachment 369273
Not sure if I have clearance there either, I just tied it up on that mounting point for the headlight harness, there's nothing there between the fender liner and the core support so they're just hanging in free air essentially.
I know they get hot as hell.
 

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Not sure if I have clearance there either, I just tied it up on that mounting point for the headlight harness, there's nothing there between the fender liner and the core support so they're just hanging in free air essentially.
I know they get hot as hell.
yep so hot they will melt any plastic that touches them
 

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Thats interesting and one if the reasons I am sticking with incandescent bulbs or will have the hyper-flash disabled.
typically the resistor it's self is ceramic and the metal part around it is just a heatsink, attaching it to other metal allows it to dissipate the heat better.
inside the ceramic is a metal strip like a fuse but the ceramic allows the heat to escape and not burn the metal strip creating resistance. at least that's my theory based on taking things apart to see how they work, lol
 

George B

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typically the resistor it's self is ceramic and the metal part around it is just a heatsink, attaching it to other metal allows it to dissipate the heat better.
inside the ceramic is a metal strip like a fuse but the ceramic allows the heat to escape and not burn the metal strip creating resistance. at least that's my theory based on taking things apart to see how they work, lol
Sounds right. I understand how resistors make heat. I was just surprised they would make a lot of heat in a flasher circuit. I guess it's 50% duty so sitting at a light for a few minutes would add up.
 

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