Hyperflash question for those with LEDs.
05-19-2018, 04:11 PM
#1
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St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
Hyperflash question for those with LEDs.
I changed all my lights to LED and installed a hyperflash bypass made by Corvette Envy.
My lights do not hyperflash now with turn signal use, but my hazards do.
Does the fix not bypass the hazard switch all together ?
I can hear the factory relay come on with the hazards and it does hyperflash, where the bypass relay comes on with the turns signals and no hyperflash.
Is that normal ?
My lights do not hyperflash now with turn signal use, but my hazards do.
Does the fix not bypass the hazard switch all together ?
I can hear the factory relay come on with the hazards and it does hyperflash, where the bypass relay comes on with the turns signals and no hyperflash.
Is that normal ?
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05-19-2018, 05:33 PM
#3
Melting Slicks
I changed all my lights to LED and installed a hyperflash bypass made by Corvette Envy.
My lights do not hyperflash now with turn signal use, but my hazards do.
Does the fix not bypass the hazard switch all together ?
I can hear the factory relay come on with the hazards and it does hyperflash, where the bypass relay comes on with the turns signals and no hyperflash.
Is that normal ?
My lights do not hyperflash now with turn signal use, but my hazards do.
Does the fix not bypass the hazard switch all together ?
I can hear the factory relay come on with the hazards and it does hyperflash, where the bypass relay comes on with the turns signals and no hyperflash.
Is that normal ?
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CorvetteBrent (05-21-2018),
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05-19-2018, 08:45 PM
#4
Advanced
I’m pretty sure my 01 doesn’t hyperflash with hazards and I have all led lighting with a hyperflash unit
Unless I’m just not noticing the “hyperflash” when I push the button.
Unless I’m just not noticing the “hyperflash” when I push the button.
Last edited by lavaheadache; 05-19-2018 at 08:47 PM.
05-19-2018, 09:43 PM
#5
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I do not believe my hazard flashers hyperflash either, but I'm not home to check them.
Anyway, moving this to C5 Tech.
Anyway, moving this to C5 Tech.
05-20-2018, 12:57 AM
#6
Drifting
The LED halo taillights have built in resistors that draw enough power to not hyperflash. If the replacement was with LED bulbs, then hyperflashing will occur.
05-20-2018, 11:06 PM
#7
Safety Car
There's definitely something wrong, the harness fix's all your hyperflash problems.
I have LED's and hyperflash harness and have no hyperflash problems. Either the harness is bad or you could have a bad LED.
I have LED's and hyperflash harness and have no hyperflash problems. Either the harness is bad or you could have a bad LED.
05-20-2018, 11:44 PM
#8
Drifting
Hyperflash harness does not bypass the hazard flasher function. LEDs without resistors will cause hyperflash with hazard, and is expected. Also, bad LEDs will not cause hyperflashing. The LED flasher does not care whether it is LED load, halogen load, or no load. It will flash at the same rate regardless.
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05-20-2018, 11:55 PM
#9
Safety Car
Hyperflash harness does not bypass the hazard flasher function. LEDs without resistors will cause hyperflash with hazard, and is expected. Also, bad LEDs will not cause hyperflashing. The LED flasher does not care whether it is LED load, halogen load, or no load. It will flash at the same rate regardless.
05-21-2018, 03:54 AM
#11
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St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
I have red LEDS in the stock taillight housings and switchbacks in the front. It did not start hyperflashing until the switchback install. The LED taillights were first installed and the hazards did not hyperflash.
Note that all the bulbs work as they should. None are out.
Note that all the bulbs work as they should. None are out.
05-21-2018, 03:56 AM
#12
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St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
I can tell the difference also which relay is working. The Corvette Envy relay is much quieter.
05-21-2018, 04:02 AM
#14
Drifting
I have red LEDS in the stock taillight housings and switchbacks in the front. It did not start hyperflashing until the switchback install. The LED taillights were first installed and the hazards did not hyperflash.
Note that all the bulbs work as they should. None are out.
Note that all the bulbs work as they should. None are out.
05-21-2018, 02:08 PM
#15
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St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
The stock flasher looks for the power draw of 3 halogen bulbs, regardless of whether it is in turn signal mode or hazard mode. In hazard mode prior to switchbacks, it was seeing the load of 2 halogens plus 4 LEDs, which was probably just enough to keep it from hyperflashing. Now it is only seeing 6 LEDs, which means it is expected to hyperflash. Everything is working as expected, there is nothing malfunctioning.
I sent them back to Amazon and reinstalled the orange 4157 that were in there( For now anyway). The Hyperflash is gone in either function although the taillights are still LEDs.
05-21-2018, 04:14 PM
#16
Drifting
Hyperflash went away because the hazard is now seeing 5 LEDs plus 1 halogen. 3 halogens means it is looking for approximately 81 watts (technically more than about halfway between 54 and 81 watts, assuming 27 watt halogens). Assuming each LED bulb is about 10 watts, 60 watts would definitely trigger hyperflash. Putting one halogen back in increases load to 77 watts, which would not trigger hyperflash.
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05-22-2018, 05:11 PM
#17
Le Mans Master
I recall about a decade ago when moving to LEDs was a new idea and nobody had created a hyper flash harness yet. One solution was to wire a regular bulb in the power line to provide resistance and reduce or prevent hyper flash. I never tried it, but it worked for many LED users on CF
02-04-2024, 06:07 PM
#19
I made my own bypass harness for the turn signals. They do not hyper-flash.
As already mentioned, the hazards are on a separate circuit. Technically speaking, my hazards do hyper-flash (they flash at a quicker rate than my turn signals), but they don't jump out at you as flashing abnormally fast.
Bottom line, if you are noticing a difference in the flash rate between the turn signals and the hazards, this is normal and characteristic for a car equipped with LEDs and a bypass harness.
As already mentioned, the hazards are on a separate circuit. Technically speaking, my hazards do hyper-flash (they flash at a quicker rate than my turn signals), but they don't jump out at you as flashing abnormally fast.
Bottom line, if you are noticing a difference in the flash rate between the turn signals and the hazards, this is normal and characteristic for a car equipped with LEDs and a bypass harness.
02-04-2024, 07:26 PM
#20
I made my own bypass harness for the turn signals. They do not hyper-flash.
As already mentioned, the hazards are on a separate circuit. Technically speaking, my hazards do hyper-flash (they flash at a quicker rate than my turn signals), but they don't jump out at you as flashing abnormally fast.
Bottom line, if you are noticing a difference in the flash rate between the turn signals and the hazards, this is normal and characteristic for a car equipped with LEDs and a bypass harness.
As already mentioned, the hazards are on a separate circuit. Technically speaking, my hazards do hyper-flash (they flash at a quicker rate than my turn signals), but they don't jump out at you as flashing abnormally fast.
Bottom line, if you are noticing a difference in the flash rate between the turn signals and the hazards, this is normal and characteristic for a car equipped with LEDs and a bypass harness.