chrisharek

Hey all. I purchased and installed these switchback LEDs last week from www.corvettemods.com. The amber blinkers work, but the white LED DRLs stay lit when the blinker is on. It overpowers the blinker, which you really can't see. I wired the resistor (to prevent hyperflash) in series with the bulb - and no issues with hyperflashing. Corvette Mods didn't have much help when I called them today but offered to look into it.

Any help or advice would be appreciated. Track day scheduled on 7/13 and I may need to put back the original dated orange DRLs so the blinkers will work.

Thanks, cs

Dragon Tamer

You can't just install the switchback bulb. You need a harness for the "switch" from white to amber to white to work. You can get the harness from Radio Flyer Innovations - a forum sponsor. It's easy to install, completely plug and play. I've had the harnesses installed for at least 2 years - no issue at all.

chrisharek

Why the heck didn't CorvetteMods say something about a harnass!? I would have ordered them too!

Wow . . . CM has certainly fallen from my list of parts suppliers.

Thanks DT!

pokerpro

This is not true at all. I purchased these bulbs from Amazon and just put them in place where the amber DRL bulb is and they work perfect. No additional harness or anything else is needed. You have a nice bright white DRL and it turns amber when you use one of the turn signals.

chrisharek

They do look really good but apparently forgot to mention I needed a wiring harness!

BADBIRDCAGE

The resistors are to prevent hyper flash. The LED switchback bulb is a direct replacement for the original bulb. If it isn’t turning amber on flash remove it and turn it 180 degrees snd try again. Should solve the problem. Also make sure the resistors are on the proper wiring circuit.

The Radioflyer harness is used in place of the resistors (which, in my experience when I had my C5, suck and burn out regularly). The harness is worth the money and keeps you from replacing resistors two or three times a year.

luka2sb

There are 3 functions in 1 bulb on the c6. Parking lights, DRLs, and turn signal.
are you telling me that product from amazon gets you white parking lights + white DRL + amber Turn signal?
To my understanding DRL and turn signal use the same Filament, so I I’d be impressed if that LED works as you described.

CrvtBB

+1 for this product. Excellent.

pokerpro

[QUOTE=luka2sb;1599482643]There are 3 functions in 1 bulb on the c6. Parking lights, DRLs, and turn signal.
are you telling me that product from amazon gets you white parking lights + white DRL + amber Turn signal?
To my understanding DRL and turn signal use the same Filament, so I I’d be impressed if that LED works as you described.[/QUOTE


The parking light as you call it and the DRL are one in the same.

LS WON

oemtech

Radio Flyer Innovations for the win!

chrisharek

Radio Flyer Harnasses are ordered. Thanks guys.

During the initial install, the new switchback bulbs didn't work at all, then, I flipped them as someone suggested, and they worked - kinda.

The resistors actually come with the Radio Flyer Harnesses contrary to what someone noted herein. I'm mad I spent the extra 10 bucks for the resistors when I ordered from CM.

luka2sb

no. The DRL and the turn signal are the same circuit. to flash turn signal the BCM literally switches the DRL circuit on and off. The parking light is the different circuit.

you haven't answered the question, with that switchback LED bulb you put a link for, you get white DRL as well as amber turn signal, and you don't have any other modifications like the radio flyer harness?

Dragon Tamer

My final 2 cents...The Radio Flyer harness has a built in relay circuit in the harness to address the possible issue with the BCM burning out the relay circuit when using switchback bulbs as I understand it. The harness also includes, prewired into the harness, a resistor to put an adequate load on the circuit to emulate the load of a filament bulb to prevent hyperflash of the LED bulb. Those resistors do get hot and need to be mounted to steel to disperse the heat. The Radio Flyer instructions for the proper mounting of the resistor is highly recommended to prevent any potential for burning or melting in a confined space. I would also suggest that following the directions to pull the fog light to enable easy installation of the resistor should be followed. It's not a big deal to pull and replace the foglight.

chrisharek

Thanks DT. I've already swapped out the fog lights with LEDs so I'll be sure to follow the RF instructions to a tee.

TorchRedFred

Vette-lights.com offers a LED bulb but you still have to add a resistor to prevent possible hyper flashing. They include the resistor with the bulb purchase.

https://www.vette-lights.com/collect...free-resistors

pokerpro

Yes that is correct, all I did was install that bulb that I sent a link for with no harness of any kind and no additional parts what so ever. The DRL or parking light is bright white 100% of the time unless the turn signal is being used then it turns amber to stay legal.

I would never put any additional harnesses on my ride just to make something work, I don't need the electrical issues that can arise from doing so.

SladeX

I intalled the radioflyer harness kit for switchback and aside from the pita it was to mount the resister/relay, it was a decent install. The harness is well done with oem weatherpack connectors. The front bar to mount my resistors was thicker than the supplied screw on my 05 so i had to purchase 0.5 inch longer screws.

LS WON

I thought Corvette Mod vendor was good?

chrisharek

I thought so too. I got a very vague response to my Email inquiry that they have never had this issue before. No wiring diagram or any instruction was included either.

(shrugging shoulders)