Keeping low beam headlights on with the high beams? - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 12-22-2012
woo woo is offline
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Icon5 Keeping low beam headlights on with the high beams?

Anybody know how to do this in a 2011 Ranger?

Or have the wiring diagram?

Any help appreciated.
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Old 12-23-2012
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It's only one bulb. A dual filament, so in order to have a low beam and a high beam at once, which makes no sense, you would need to seperate housing with different bulbs. Now If you're talking about the fog lights I think that someone did a How-To for 2004 and up. Search "Fog Light Mod" and you should find what I think you're looking for.
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Old 12-23-2012
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Quote:
Originally Posted by 99DangerRanger View Post
It's only one bulb. A dual filament, so in order to have a low beam and a high beam at once, which makes no sense, you would need to seperate housing with different bulbs. Now If you're talking about the fog lights I think that someone did a How-To for 2004 and up. Search "Fog Light Mod" and you should find what I think you're looking for.
Thanks.

Given the dual filaments I can see that overheating would be a problem.

On my other car the HID low beams stay on with the high beams and the lighting ahead is great, both near and far.

With the Ranger the low beam + fogs is great for near, but the high beams just seem to shine off into the disatnce.

The beam height seems to be in spec. but maybe I should trying lowerig the beam a bit. I don't remember this problem on my previous Rangers.

And having the fogs on might help also.
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Old 12-23-2012
woo woo is offline
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I lowered the headlights one full turn of the adjuster.

I'll try it out tonight but I fear the low beams might be too low now.
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Old 12-23-2012
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That's a bit better.

Anybody know where the "fog light" mod is for a 2011? I only found up to 2006.
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Old 12-24-2012
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I think that 2006 and up is the same if I remember correctly.
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Old 12-24-2012
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Quote:
Originally Posted by 99DangerRanger View Post
It's only one bulb. A dual filament, so in order to have a low beam and a high beam at once, which makes no sense, you would need to seperate housing with different bulbs. Now If you're talking about the fog lights I think that someone did a How-To for 2004 and up. Search "Fog Light Mod" and you should find what I think you're looking for.
Actually with a diode acting as a 1 way check valve or a 5 pin relay, you could make both filaments burn at the same time. To use a diode, you would simply splice in a jumper wire from the high beam wire to the low beam wire with the diode in it. That way when you turn the low beams on it only powers the low beams because the diode prevents the power from going to the high beams. When you power the high beams the power also goes to the low beam. The problem with this is that you will have a significant change in amperage draw when both are on and I don't know if the stock wiring could handle it.
To use the relay method, get into the wiring harness before it splits to the individual bulbs. Cut the low beam wire and put female spade connectors on the ends. The wire that goes TO the headlights plugs in to the 30 pin, the other wire you cut goes to the 87A pin, splice a wire from the high beam wire and connect it to the 85 pin, ground the 86 pin, and run a constant hot from the battery, through an appropriate fuse, to the 87 pin.
How this works is with just the low beams on the relay is not energized and will stay in it's default position, the low beams will work like normal because the connection is closed between the 87A and 30 pins. When you turn on the high beams, the relay is energized by the current from the high beam wire and power will be pulled from the battery, through the now closed connection between the 87 and 30 pins, to the low beams. You are drawing power from 2 "different" sources at different times.
If this is advisable or not, I don't know, I wouldn't do it but I already have 80w low beams and 100w high beams vs. stock 55w lows and 65w highs. I could see heat being an issue.
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Old 12-24-2012
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I remember with my moms jeep you can hold the turn signal handle back towards you and the low beams, high beams, and fog lights all stay on for like a minute and then they burned out. So that was my test.
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Old 12-27-2012
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I believe when you pull the headlight back towards you, so as to flash your brights at someone, it holds the low beams on, at least it does in my 2008
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Old 12-28-2012
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Thanks for all the advice.

Just adjusting the beams lower made a difference. I'll look into doing the fog light mod.
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