Fogs lights on with high beams also?
Thread Starter
Melting Slicks
Joined: May 2005
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From: Las Vegas Nevada
St. Jude Donor '08
Fogs lights on with high beams also?
Is it hard or complicated to change the wiring, so that the fog lights will work when either the low or high beams are on? Thinking of getting some Piaas and want them to work on the high beams too.
Thanks,
Clayton from Las Vegas
Thanks,
Clayton from Las Vegas
Drifting
Joined: Jun 2004
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From: Goodyear Az
If you're getting PIAAs, you can hard wire them using the PIAA relay and have full control over when they are lit or not. If you're going to use the stock foglight switch and relay, I've never seen anyone show how to have highs and fogs on at the same time.
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I would guess anything is possible, but haven't seen any posts about doing this either.
Drifting
Joined: Jan 2006
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From: Castro Valley State of Insanity
A PAINLESS WIRING relay part # 30802 will keep your fog lights on when the highs are on. Tap the relay trigger wire into the high beam circut, and the feed wire from the relay into the fog circut, you will also have to run a ground wire and hot wire to the relay. You can also use the same part # relay to keep your low beams on when you are running the highs, in that application the relay wires are color coded the same as the C5 headlight circut, I have this relay on my C5 headlights and have had the same on two GM pickups with flawless performance.
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,461
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From: Las Vegas Nevada
St. Jude Donor '08
A PAINLESS WIRING relay part # 30802 will keep your fog lights on when the highs are on. Tap the relay trigger wire into the high beam circut, and the feed wire from the relay into the fog circut, you will also have to run a ground wire and hot wire to the relay. You can also use the same part # relay to keep your low beams on when you are running the highs, in that application the relay wires are color coded the same as the C5 headlight circut, I have this relay on my C5 headlights and have had the same on two GM pickups with flawless performance.
Clayton from Las Vegas
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From: Hillsboro Oregon
Drifting
Joined: Jan 2006
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From: Castro Valley State of Insanity
The kit consists of a relay with a 30 amp rating, and the necessary wiring to make it functional. The trigger wire taps into your high beam circut, when you turn on the high beams the relay closes and delivers current to your fog lights via the feed wire from the relay. You also need to run a hot wire from a 12 volt source thru a fuse to the relay, and a wire from a good ground source to the relay. Very simple to do, I mounted my relay inside the battery box, and ran the wires to the headlight circut, under the coolant tank and made the connections there, totally hidden when complete. The relay kit is available from the usual mail order speed shops for about 20 bucks, come with complete directions for the high beam circut, to do the fog lights all you need to do is identify the positive wire in that circut. Personally I think your better off having the ability to have high/low on at the same time rather than high/fog, but thats just my .02.
Last edited by Bubbletop409; Dec 30, 2006 at 11:26 PM.
Le Mans Master
Joined: May 2006
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From: Hillsboro Oregon
Painless
Try searching Google for Painless 30802 Relay Kit.
You will find lots of pricing and a few How To's as well.
Seems like you could just T off the switched wire to the Low Beams to the Fogs and get High + Low + Fogs when you turn on your High Beams?
Thanks Bubbletop409 for the info,
You will find lots of pricing and a few How To's as well.
Seems like you could just T off the switched wire to the Low Beams to the Fogs and get High + Low + Fogs when you turn on your High Beams?
Thanks Bubbletop409 for the info,
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Le Mans Master
Joined: May 2006
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From: Hillsboro Oregon
You are correct........but I meant using the Painless relay as you suggested but just T the Low Beams and Fogs so all three come on with Brights.
Thread Starter
Melting Slicks
Joined: May 2005
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From: Las Vegas Nevada
St. Jude Donor '08
Drifting
Joined: Jan 2006
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From: Castro Valley State of Insanity
Sure you could "T" the feed wire from the relay if you wanted everything on in the high beam mode. One thing I would caution you on though, is to verify you would not be overloading the relay. As I stated previously the rating on the relay is 30 amps. I would locate the fuses for the high beam and fog circuts, add their amp ratings together, and if you get 30 or less I would say you are good to go. If your over the 30 amp mark, you could also run seperate relays for each circut.
Racer
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Can the software in the BCM be changed? That would obviously the simplest modification without any wiring change? Over in Europe, the fog lights have to be independent. They are not allowed to be switched off when the high beams are on.
Also, is there a wiring diagram somewhere? The fog switch yellow light and switch is off when the high beam is on. We do not want the fog lights on every time the high beams are on, only when the fog light switch is depressed.
Also, is there a wiring diagram somewhere? The fog switch yellow light and switch is off when the high beam is on. We do not want the fog lights on every time the high beams are on, only when the fog light switch is depressed.
Racer
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Melting Slicks
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Solution posted here
https://www.corvetteforum.com/forums...igh-beams.html
https://www.corvetteforum.com/forums...igh-beams.html