 New LED headlight bulbs, now no fog lights, H4 style LED bulbs used |
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| barefoot |
 Jan 21 2020, 08:53 AM
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Senior Member  Group: Members Posts: 1,279 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States 
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Just installed H4 base LED headlight bulbs, now fog lights don't come on, but headlights get a tiny bit brighter. I guess I'll have to do the foglight wiring switch mod to by-pass the headlight switch, was hoping not to have to do this mod.
Anyone else bump into this problem ?? |
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| theer |
Jan 21 2020, 01:37 PM
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#2
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Senior Member Group: Members Posts: 677 Joined: 31-July 15 From: Dover, MA Member No.: 19,014 Region Association: North East States
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Yep - a common problem with the LED headlights messing with the fogs Try the fogs with high and then low beam. You get some strange behaviors.
The fix is to move the fog light ground from the high beam circuit directly to chassis ground. There was a thread recently (late last year?) that dealt with exactly this issue. |
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Posts in this topic
barefoot New LED headlight bulbs, now no fog lights Jan 21 2020, 08:53 AM
lierofox Yeah, the problem is that in the stock configurati... Jan 21 2020, 03:16 PM Chi-town Cut the white/blue wire and ground it Jan 21 2020, 03:29 PM
burton73 LEDs on #41 at PMB
Bob B
Jan 21 2020, 03:58 PM |
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