Print Page | Close Window

Fog Light Wiring

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=32602
Printed Date: July 15, 2025 at 9:20 PM


Topic: Fog Light Wiring

Posted By: cdn97
Subject: Fog Light Wiring
Date Posted: May 23, 2004 at 11:09 AM

I have a set of aftermarket fog lights that have an inline relay.  I want to wire them up to my low beams so when the low beams are on, the fog lights are on.  But, I also want to have it so that when I turn on the high beams, the fog lights turn off.  I'm sure I need to use a relay somehow, but I am not sure how.  I am putting this in a 1994 Honda Prelude Si and would appreciate any helpful information.  Thanks.



Replies:

Posted By: athensdawgs81
Date Posted: May 23, 2004 at 10:29 PM

Using a relays will be your best bet. I'm not sure if they make them but I think they do. You'll need a normal relay(normally open contacts) and you'll also need on with normally closed contacts. Tie the NO relay to the hot going to the low beam lights so when you turn them on the fog lights come on. Tie the NC relay to the high beams and put it in line with the NO relay. If you wire it this way when you turn your low beams on the NO relay will close and power will flow thru you NC and your NO then when you turn your high beams on the NC relay will open up and kill power to the fog lights. 


Print Page | Close Window