LED headlight issue with the FOGS., okteenerfest vendor LED headlights Options

[malcolm2]

The guys at VintageCarLEDs.com are looking into what may be causing my problem. I am sure it is not their light, but something to do with the wiring. Probably my wiring. I know very little about LEDs, but I have an idea what to look for on this. Please chime in on your thoughts.

So here is the deal: Installed the very awesome LED headlights from VintagecarLEDs.com. They have been on the ball with customer service, helping me with the install on my 75.

Backdated bumpers with OEM fog lights. I wired them up and either did not document, or can't find any notes on the project. My Prosperos garage wire diagram for the 75 does not show fogs.

Everything worked fine with the non-LED headlights. Fogs are only on when the low beams are on, just like factory. So my only change is the LED install.

Taking a test run last night Low beams are awesome, High beams are awesome. Both need adjusting, of course.....>>> and decided to pull the switch for the FOG lights. At that point the headlights went to HIGH and would not switch back. I get the click with the blinker stalk pull, but no change on the headlights. Not sure if the fogs were on, probably not.

But that is my issue. I am thinking it is ground related. Don't LEDs want their own ground? Maybe I am sharing a ground with the fogs???

Please chime in.

[mtc911]

The guys at VintageCarLEDs.com are looking into what may be causing my problem. I am sure it is not their light, but something to do with the wiring. Probably my wiring. I know very little about LEDs, but I have an idea what to look for on this. Please chime in on your thoughts.

So here is the deal: Installed the very awesome LED headlights from VintagecarLEDs.com. They have been on the ball with customer service, helping me with the install on my 75.

Backdated bumpers with OEM fog lights. I wired them up and either did not document, or can't find any notes on the project. My Prosperos garage wire diagram for the 75 does not show fogs.

Everything worked fine with the non-LED headlights. Fogs are only on when the low beams are on, just like factory. So my only change is the LED install.

Taking a test run last night Low beams are awesome, High beams are awesome. Both need adjusting, of course.....>>> and decided to pull the switch for the FOG lights. At that point the headlights went to HIGH and would not switch back. I get the click with the blinker stalk pull, but no change on the headlights. Not sure if the fogs were on, probably not.

But that is my issue. I am thinking it is ground related. Don't LEDs want their own ground? Maybe I am sharing a ground with the fogs???

Please chime in.

Interesting - I had almost this exact same issue last week after installing the exact same headlights. I spent a lot of time troubleshooting it and farting around with stuff (AND NEVER BLEW ONE FUSE IF YOU CAN BELIEVE IT)

my fix - what i found
1) I had a bad ground on my High Beam Indicator lIght (which works now after fixing) Your wiring diagram should show you which wires lead to that indicator)
2) I am pretty certain my fog light relay was bad and the Previous owner had wired it directly to the fuse box (fog lights work when engaging the switch even with lights off)
3) i bypassed the fog light relay (dont like the fogs going of with high beams anyway)

so, net/net - the high beam indicator ground and bypassed the relay

Not sure if that's the right way to do it...but everything works flawlessly now...and i can use my fogs as "day time running lights" if i want...and they stay on even with high beams..

Hope that helps