Hyperflash Harness/ LED DRL Questions
Thread Starter
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
Hyperflash Harness/ LED DRL Questions
After having my stock DRL/turn signal bulbs burn though the housings I got some new housings, a (Corvette Envy) hyperflash harness and some (Sylvania) LED turn signal bulbs and LED running light bulbs. After installing everything I have some problems now. My DRL/turn signal bulbs only work if I turn the lights on with the MFS switch and they don't flash with the turn signal or hazard switch anymore. The tailight bulbs still work with the turn signals, but not with the hazard switch. Any idea what's going on here? Thanks.
Steve
Steve
Drifting
Joined: Nov 2016
Posts: 1,660
Likes: 365
From: SF Bay Area
With the hazard switch, it might be that the hazard switch itself has gone bad. Do you hear any clicking from the hazard switch when it is on?
As for the turn signal not flashing, I would suspect corrosion in your turn signal sockets causing that.
As for the turn signal not flashing, I would suspect corrosion in your turn signal sockets causing that.
Thread Starter
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
I was kinda wondering about the hazard switch because if I push the button in and hold it, the tailights will flash, but as soon as I let go of it nothing happens leading me to believe the switch is bad since it won't stay on. As far as the turn signals, the sockets did look clean and the lights do come on, but only with the MFS switch on, however they wont flash. It's just weird.
Steve
Steve
Thread Starter
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
Steve
Drifting
Joined: Nov 2016
Posts: 1,660
Likes: 365
From: SF Bay Area
Three options: Your socket is bad, or your bulbs are plugged in the wrong way (some LED bulbs don't work in certain orientations), or your DRL relays have a bad connection. The DRLs/approach lights receive power from a different source than the flasher. The odds of both sources being bad is highly unlikely to me; relays going bad seem highly unlikely as well.
Le Mans Master
Joined: May 2006
Posts: 5,747
Likes: 224
From: Hillsboro Oregon
Try removing the Hyperflash harness and go back to stock and see which lights work and which will not. Yes, the LEDs will flash too fast, but this will tell you if it is the hyperflash harness.
Thread Starter
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
Thanks guys, I will try all the suggestions. I'll check the sockets and relays, flip polarity on the leds and if that doesn't fix anything I'll remove the hyperflash and see if things return to normal. I'll report what I find.
Steve
Steve
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Night Owl for life
Joined: Nov 2003
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From: Bugs Bunny should'a made a left turn here
When I put in my new switchbacks I was going mad trying to figure out why one of the new bulbs would work and the other wouldn't.
The issue resided in one of the two bulb wires (which makes contact with the socket) wasn't sticking out far enough into the socket. I used a small flathead to reposition the wire slightly and the light came to life as expected.
The issue resided in one of the two bulb wires (which makes contact with the socket) wasn't sticking out far enough into the socket. I used a small flathead to reposition the wire slightly and the light came to life as expected.
Le Mans Master
Joined: May 2006
Posts: 5,747
Likes: 224
From: Hillsboro Oregon
When I put in my new switchbacks I was going mad trying to figure out why one of the new bulbs would work and the other wouldn't.
The issue resided in one of the two bulb wires (which makes contact with the socket) wasn't sticking out far enough into the socket. I used a small flathead to reposition the wire slightly and the light came to life as expected.
The issue resided in one of the two bulb wires (which makes contact with the socket) wasn't sticking out far enough into the socket. I used a small flathead to reposition the wire slightly and the light came to life as expected.
This is a common failure point in all the LED bulbs I have seen. IMO the tiny wires that make the electrical contact are too small and fragile to be reliable connectors in a socket designed for regular incandescent bulbs. But really nothing much the end user can do about this beyond but what jdmvette did.
Last edited by jrprich; Dec 6, 2017 at 11:25 AM.