How to keep your low beams on with your highs (quad beam) - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-22-2010, 09:33 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
LeSabreUltra's Avatar
 
Join Date: Feb 2007
Location: Alabama
Posts: 494
Thanks: 0
Thanked 0 Times in 0 Posts
LeSabreUltra is on a distinguished road
Default How to keep your low beams on with your highs (quad beam)

Okay, well I had a burst of inspiration today with my factory service manuals and figured this one out on my own. Here'* what I did.

To do this, you need a relay powering the low beams, otherwise this will not work. Which, if you have HIDs you should anyway, there simply is no good reason not to, whether it works on stock wiring or not. If you have stock halogens, buying a low beam 9006 relay would help your output a lot and allow you to do this mod safely.

I bought a 99 cent diode from radioshack. Wired in a jumper wire with the diode attached from the high beam power wire (green on mine) to the input switch for the low beam relay. This way, the diode will not allow the low beam power to escape back to the high beams. As it turns out, the lower voltage power coming from the DRLs, perimeter lighting etc is NOT enough to trip the relay and activate the low beams, so everything performs to 100% factory spec, except now the lows stay on with the highs without a single flicker. In addition, with this method there should be no concern with overtaxing the electrical system, considering the low beams get all their power from the relay.

Perimeter lighting doing it'* job:

Name:  DSC02683.jpg
Views: 48
Size:  13.0 KB

Low beams only (look blue cause they're warming up)

Name:  DSC02684.jpg
Views: 52
Size:  23.5 KB

Lows and highs:

Name:  DSC02685.jpg
Views: 47
Size:  21.0 KB

This would be a good how-to for someone trying to get dual high/low beams with their aftermarket HID system, or on stock halogens.
.
.
.
LeSabreUltra is offline   Reply With Quote
Old 02-22-2010, 09:56 PM   #2
Senior Member
Posts like a Northstar
 
Rockstar04's Avatar
 
Join Date: Feb 2009
Location: Northern Illinois
Posts: 789
Thanks: 0
Thanked 0 Times in 0 Posts
Rockstar04 is on a distinguished road
Default

Sweet! I will have to study that really good and make some diagrams to make it easier for everyone to understand.
Rockstar04 is offline   Reply With Quote
Old 02-22-2010, 10:50 PM   #3
Senior Member
True Car Nut
 
Purplehazeir's Avatar
 
Join Date: Sep 2008
Location: Arlington, WA
Posts: 7,979
Thanks: 0
Thanked 1 Time in 1 Post
Purplehazeir is on a distinguished road
Default

...and add the disclaimer...may not be legal in all if any states!
Purplehazeir is offline   Reply With Quote
Old 02-22-2010, 10:54 PM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

As far as I know, it is not legal to alter headlights in any state. However, I have not heard of anyone getting pulled over for it.
Danthurs is offline   Reply With Quote
Old 02-22-2010, 11:21 PM   #5
Senior Member
Certified GM nut
 
SignOfZeta's Avatar
 
Join Date: Mar 2005
Location: New Milford, CT
Posts: 2,284
Thanked 16 Times in 13 Posts
SignOfZeta has a spectacular aura aboutSignOfZeta has a spectacular aura about
Default

On my car, I've found that pulling the multifunction lever once to turn the highs on, and then pulling it and holding it toward you has the same effect (until you let go, then the highs turn off).

Hope this helps in your reverse-engineering.
SignOfZeta is offline   Reply With Quote
Old 02-22-2010, 11:26 PM   #6
Senior Member
Posts like a Turbo
Thread Starter
 
LeSabreUltra's Avatar
 
Join Date: Feb 2007
Location: Alabama
Posts: 494
Thanks: 0
Thanked 0 Times in 0 Posts
LeSabreUltra is on a distinguished road
Default

Yes, good point, it may not be legal...but I'd be very surprised if anyone said anything about it. Many cars have continuous low beams with their highs these days.

Drove it all over the place tonight highs on/off and everything else. Still working 100%!
.
.
.
LeSabreUltra is offline   Reply With Quote
Old 02-22-2010, 11:43 PM   #7
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

I like it!. But will wait while this project gets some hours on it before I attempt. Let us know about if the heat does anything negative. Around here I drive woth the highs contantly and having both will help with all the deer here bent on suicide. If I could burn all 3, that would be Awesome.

Got the Diode part # handy?
GXP Venom is offline   Reply With Quote
Old 02-22-2010, 11:51 PM   #8
Senior Member
Posts like a Turbo
Thread Starter
 
LeSabreUltra's Avatar
 
Join Date: Feb 2007
Location: Alabama
Posts: 494
Thanks: 0
Thanked 0 Times in 0 Posts
LeSabreUltra is on a distinguished road
Default

Will do. So far it seems everything is doing fine. Headlight switch is staying at ambient temperature.

As far as the housing heat, I'm almost positive it could take the heat of both high and low halogen, but I am running HID lows and halogen highs, so it stays a little cooler. Lens is only slightly warm after extended running.

Part number for the diode on RadioShack is 276-0563.

http://www.radioshack.com/product/in...ductId=2049725

Okay, the diodes were $1.39, not $0.99, my mistake lol.
.
.
.
LeSabreUltra is offline   Reply With Quote
Old 02-23-2010, 12:18 AM   #9
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

GXP'* are HIR so I'm just a little concerned. I have pulled back on the lever to get both many times. Would be cool to have this.
GXP Venom is offline   Reply With Quote
Old 02-23-2010, 01:02 AM   #10
Senior Member
Posts like a Northstar
 
Rockstar04's Avatar
 
Join Date: Feb 2009
Location: Northern Illinois
Posts: 789
Thanks: 0
Thanked 0 Times in 0 Posts
Rockstar04 is on a distinguished road
Default

Now that I know its this simple I am most likely going to do this to the Bonnie and my Ranger
Rockstar04 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Anyone Done a Quad-Beam Mod? NTL1991 Everything Electrical & Electronic 11 12-06-2009 01:08 AM
New to the forum...'98 SSEI wol would like to keep both the high and low beams on gage Everything Electrical & Electronic 3 11-22-2009 03:10 AM
HI-BEAM & LOW BEAM HID panda1956 1987-1991 7 08-11-2006 09:06 PM
how to keep the low beams on when the high beams go on? NERV Everything Electrical & Electronic 26 06-16-2004 07:02 PM
Enabling Low Beam while Hi Beam is on Drifter420 Everything Electrical & Electronic 15 10-22-2003 05:15 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:34 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.