Hyper flash bypass installed now no hazard or signals

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Mar 31, 2023 | 03:37 PM

1stvetteRED

Thread Starter

2nd Gear

Joined: Mar 2023

Posts: 2

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Hyper flash bypass installed now no hazard or signals

New to the forum and my first vette red C5 hatchback. Left turn signal is hyper flashing. Hazard, brake lights, right turn signals all work. Left front signal hyper flashes and both rear bulbs dead. Replaced front bulb and both rear, not LED's. Bought and installed the bypass harness,, now the hazard lights and turn signals do nothing. Thought maybe a bad harness so bought another and it does the same thing, nothing. Any ideas?

Thanks

Last edited by 1stvetteRED; Mar 31, 2023 at 04:22 PM.

Mar 31, 2023 | 04:16 PM

link9a

Racer

Joined: May 2021

Posts: 384

Likes: 52

Quote:

Originally Posted by 1stvetteRED

New to the forum and my first vette red C5 hatchback. Left turn signal is hyper flashing. Hazard, brake lights, right turn signals all work. Left front signal hyper flashes and both rear bulbs dead. Replaced front bulb and both rear, not LED's. Bought and installed the bypass harness and installed,, now the hazard lights and turn signals do nothing. Thought maybe a bad harness so bought another and it does the same thing, nothing. Any ideas?

Thanks

if you don't have led bulbs that means bad hazard switch need to replace ...

Mar 31, 2023 | 04:20 PM

1stvetteRED

Thread Starter

2nd Gear

Joined: Mar 2023

Posts: 2

Likes: 1

OK, got one on order and planned to replace. For some reason I thought this bypass harness was a cure for all signal hyper flash problems if the bulbs were good.

Thanks for the quick reply

Mar 31, 2023 | 04:23 PM

link9a

Racer

Joined: May 2021

Posts: 384

Likes: 52

Quote:

Originally Posted by 1stvetteRED

OK, got one on order and planned to replace. For some reason I thought this bypass harness was a cure for all signal hyper flash problems if the bulbs were good.

Thanks for the quick reply

No problem ....Sometimes the ground need to cleaned . Hyper flash relay they use it if you have led bulbs ....

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