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C5 Corvette Signal Light Problem

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Old Apr 12, 2018 | 09:37 PM
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Default C5 Corvette Signal Light Problem

I have switched all of my lights to LED, except for the FOG lights and they are next. Trying to figure out which bulbs will work.
I had hyperflash when I turned on the signal lights. I installed the Hyperflash harness, no hyperflash but now the dash and FOG LIGHTS flash when I turn on the signal lights??
Defective hyperflash harness or is the system waiting for me to install LED FOG LIGHTS bulbs??
Has anyone experienced this situation?
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Old Apr 12, 2018 | 11:32 PM
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Moved to C5 Tech.
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Old Apr 16, 2018 | 07:41 PM
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Call the people you got the hyper flash from and discuss the problem.
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Old Apr 17, 2018 | 07:16 PM
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If you remove the hyperflash harness, does everything return to normal (except for the rapidly flashing turn signals, of course)?

Last edited by GCG; Apr 17, 2018 at 11:30 PM.
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Old Apr 17, 2018 | 08:30 PM
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That is a weird problem I would remove the hyperflash harness and see if it still happens. Then call whoever you bought it from for advice.
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Old May 10, 2018 | 11:22 PM
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I removed the Hyperflash harness and connected the original harness. Hyperflash was there. Installed new replacement Hyperflash Harness and now only the fog lights flash with the turn signal. I can live with this.
At least now I know what caused the original problem.
So if anyone else has this problem, replace the Hyperflash Harness.
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Old May 11, 2018 | 02:28 PM
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Originally Posted by Arthaas722
...I installed the Hyperflash harness, no hyperflash but now the dash and FOG LIGHTS flash when I turn on the signal lights...
Originally Posted by GCG
If you remove the hyperflash harness, does everything return to normal (except for the rapidly flashing turn signals, of course)?
Originally Posted by Arthaas722
I removed the Hyperflash harness and connected the original harness. Hyperflash was there...
Thank you for posting your findings, but you didn't answer what we asked: what happened to the flashing dash and fog lights with the hyperflash harness removed and OEM connection restored?

Without that information it is just a guessing game.

Last edited by GCG; May 11, 2018 at 02:47 PM.
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Old May 11, 2018 | 03:33 PM
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[QUOTE=GCG;1597179861]Thank you for posting your findings, but you didn't answer what we asked: what happened to the flashing dash and fog lights with the hyperflash harness removed and OEM connection restored?

Without that information it is just a guessing game.[/QUO


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Old May 11, 2018 | 06:45 PM
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Default Hyperflash Harness

After reconnecting the factory harness only the turn signal lights (both front and rear) went back to Hyperflash. This indicated to me that the supplier harness was defective. They sent me a replacement harness. So far the Hyperflash is gone but the fog lights flash when I turn on the signal light (not both sides at the same time, only the one that when I select to turn)
I guess only time will tell to see if this harness works?
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