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Old 09-22-2015, 06:52 PM   #176
Infinite0180
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Default DIY: 2012 WRX: Use fog lights as DRL

Hey guys! If you want to do this without splicing then order a set of 9006 male to female extender cables online. Take one apart and depin the connectors so your left with a complete untouched extender harness, and a disassembled one comprised of the 9006 male and female depined plugs (put these aside) plus the two wires with a male pin and female pin on each side. Take one of the wires with the pin on either end and cut off the female style pin (the square one that accepts a male pin) and tap the cut end into the positive wire of the untouched 9006 extender cable you put aside earlier. I chose to solder it inline but i suppose you could use a vamp clip. Then take off your bumper and remove the drl resistor, then depin the connector on the resistor side, its just like a 9006 connector but shaped different and has a wire lock which pops off. Then figure out which side of the depined drl connector goes to the green wire on the car harness. Once you figure that out pop the male pin from the wire you tapped into the extender harness, its the same style pin (youll see what i mean when you depin the drl connector) then plug it back into the car side and then plug the extender in between the fog light bulb and car fog light harness plug. A few zip ties and your done. Super clean and functions great. Just make sure you keep all the polarities the same and stuff. I didnt take a pic of mine before i put it in but i will in a few days when i pull the bumper! Good luck!
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Last edited by Infinite0180; 09-22-2015 at 06:58 PM.
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Old 10-19-2015, 04:00 PM   #177
jessetm
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Hey all, another 15-er that did this mod. Very easy! I did it from under the car and also due to lack of length on the wires I needed the extra wire and two vampire clamps.

Thanks to the OP and other contributions for an easy mod to complete!
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Old 12-25-2015, 08:53 PM   #178
Rfbunag
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Default Need help!

Need help! I followed the directions and did not work. I split the green wire on the drl connector and attached it to the white/green wire on the fog light connector. What am I doing wrong?!?

Thanks in advance!
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Old 12-26-2015, 01:51 AM   #179
tenaciousZ
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^ in the OPs instructions it said black/white fog light wire.. sounds like you might have spliced into the wrong one.
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Old 12-26-2015, 07:44 PM   #180
Rfbunag
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Default Need help!

Need help! I followed the directions and did not work. I split the green wire on the drl connector and attached it to the white/black wire on the fog light connector. What am I doing wrong?!?

Thanks in advance!
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Old 12-26-2015, 08:20 PM   #181
Nortybignort
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I think you need to splice it to the black/white wire not white/black.
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Old 12-27-2015, 06:06 PM   #182
Rfbunag
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Thanks for the reply!

The wire coming from the drl connector is green and white/black. The connector from the fog light connector is black and white/black. Not black/white.
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Old 01-16-2016, 02:39 PM   #183
MaxxPower
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I did this yesterday, and it is amazing. I cut the plug off completely and direct wired it. Looks a lot cleaner than half a roll of electrical tape.
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Old 02-12-2016, 12:31 PM   #184
koobaman
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Just did this to my '15 STI, decided to go through the top of the engine by removing the front half of the airbox. Took a bit longer than I expected since the resistor cable is behind a part of the subframe and I couldn't find it for a while :P also thought it was easier to take the fog light bulb out instead of unplugging it so I wasn't fumbling around in the dark trying to get the plug off.

Really like the way the fogs look as a DRL and when it stops raining I'm going to put some yellow tint over them. I'll post some pics when it's done
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Old 02-12-2016, 01:15 PM   #185
koobaman
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two layers of yellow tint, makes it a richer colour. camera doesn't do it justice
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Old 02-12-2016, 02:40 PM   #186
shadrag
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Nice job koobaman, I'm planning to do the same thing. I tried to do it from up top with the airbox out, but it was a pain unclipping the drl resistor not being able to see/feel how to unplug it. I will attempt again from the bottom when it's warmer.
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Old 02-12-2016, 09:32 PM   #187
koobaman
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Quote:
Originally Posted by shadrag View Post
Nice job koobaman, I'm planning to do the same thing. I tried to do it from up top with the airbox out, but it was a pain unclipping the drl resistor not being able to see/feel how to unplug it. I will attempt again from the bottom when it's warmer.
there is a little white clip holding the resistor cable in place, if you take the club out it makes life 100x easier, then just re-install the clip once you have it wired to stop it from moving around too much
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Old 03-20-2016, 06:26 PM   #188
STi0perator
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I knew this would/should be the simplest of mods but I couldn't get it to work for 1-2 hours before I decided to go out and buy different vamp taps.

http://i.imgur.com/xRLhZvS.jpg

Bottom tap was the first style I attempted to use, the claps that secure it together kept breaking before I could even get the wires tapped.

Top tap I literally pulled into my driveway, got under the car and 5 mins later it was history. It took less than 10 mins like everyone claims.

For those that are looking for compatibility info I have the morimoto C-light upgrade, Retro fit quad projectors, led turn signals + fog lights and everything runs fine.
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Old 05-14-2016, 03:10 AM   #189
ckim78
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I just tried this on my '16 Forester XT, and only the passenger side fog light comes on as DRL. Both fogs come on when I switch on the headlights and foglights.

This worked perfectly on my '15 STi.

Anybody have any idea as to what's going on? According to the wiring diagrams, the foglight wiring on the STi and FXT are essentially the same.

Would it be a bad idea to try wiring the DRL wire to both foglights, since, if the foglights are powered independently, wiring them up in series would cause problems?
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Old 05-14-2016, 01:44 PM   #190
GTEASER
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Quote:
Originally Posted by ckim78 View Post
I just tried this on my '16 Forester XT, and only the passenger side fog light comes on as DRL. Both fogs come on when I switch on the headlights and foglights.

This worked perfectly on my '15 STi.

Anybody have any idea as to what's going on? According to the wiring diagrams, the foglight wiring on the STi and FXT are essentially the same.

Would it be a bad idea to try wiring the DRL wire to both foglights, since, if the foglights are powered independently, wiring them up in series would cause problems?
Since both the cars you are referring to are a completely different chassis than this thread addresses, why don't you start another thread, find one more pertinent to your car, or try the Forester forum.
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Old 05-14-2016, 07:56 PM   #191
Psirus82686
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Default 2016 WRX fog light DRL Issue

Hey Everyone,

I installed my new Halo fog lights today and I was tapping them into my drl harness (with taps provided by subispeed) from subispeed and I am running into issues.

I tapped into 3 places on the harness and for some reason I cannot get the power to go to my halos. I unplugged the power for the halos from the t-tap and connected straight to my battery and they work fine. I am just lost at this point... Any help is much appreciated
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Old 05-14-2016, 10:32 PM   #192
ckim78
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Quote:
Originally Posted by GTEASER View Post
Since both the cars you are referring to are a completely different chassis than this thread addresses, why don't you start another thread, find one more pertinent to your car, or try the Forester forum.
Tried the other forums (including the Forester forum). People over there aren't even aware of using the + wire that goes to the DRL resistor to power other lights.

Regardless, there must have been a diode in the system. Wiring the DRL wire to both fogs did the trick.
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Old 05-14-2016, 10:34 PM   #193
ckim78
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Quote:
Originally Posted by Psirus82686 View Post
Hey Everyone,

I installed my new Halo fog lights today and I was tapping them into my drl harness (with taps provided by subispeed) from subispeed and I am running into issues.

I tapped into 3 places on the harness and for some reason I cannot get the power to go to my halos. I unplugged the power for the halos from the t-tap and connected straight to my battery and they work fine. I am just lost at this point... Any help is much appreciated
Only thing I can think of is that the T-tap isn't cutting into your DRL harness properly. Try a different tap/vampire clip? Or maybe just strip the DRL harness a bit first.
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Old 06-06-2016, 10:24 AM   #194
bagwell
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so just to confirm, this mod is in fact giving the full 12V to the fogs right??

I'm thinking of just direct wiring them with a relay so when the car turns on, the fogs are on, no matter what.

Last edited by bagwell; 06-07-2016 at 04:23 PM.
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Old 10-18-2016, 06:49 PM   #195
enjoilife91
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Default 2010? Will this work ?

Quote:
Originally Posted by REBinc View Post
I just bought my car last weekend, and I tried searching for a thread like this but couldn't fine one. This mod is very simple but it would have saved me a lot of time if someone would have laid it out instead of having to study the wiring diagrams.

My goal was simple, use my fog lights as the day time running lights. I had seen threads about disabling the DRLs, or making the fog light independent, but that's not quite what I wanted. I believe that DRLs are there for a safety reason, so I don't want to totally disable them, and all the independent fog light mods seem to require hacking up a bunch of the wiring under the console.

The theory behind the mod is to take the 12v going to the DRLs before the resistor, and give that 12v directely to the fog lights. This sounds simple, and like I said above, it is simple.

What you need:
10mm Wrench
2 Vampire Taps
6" of wire (12-14 awg)

1.) Remove the airbox assembly:
a.) Two pop clips at the front:

b.)Two metal straps on the top of the airbox:

c.) Unclip the wiring looms that are connected to the cover.
d.) One 10mm nut on the upper left of the front side of the airbox:

e.) Pop the airbox off the bushing at the bottom.
2.) Pop out side cover on the bumper for easy access


3.) Unplug the plugs from the resistor and fog light


4.) Put one wire tap on the [Green] wire on the resistor plug, and the other tap on the [Black & White] wire on the fog light plug.

5.) Connect them with your wire and wrap in electrical tape.


6.) Plug in the fog light plug

7.) Reassemble car
I really like this mod and I would love do it on my 2010 wrx if its possible ?
Any help would be appreciated . I'm super new to Subarus.
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Old 10-18-2016, 06:50 PM   #196
enjoilife91
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I didn't mean to quote the whole page I'm sorry smh
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Old 12-09-2016, 07:22 PM   #197
VA8
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Dumb question, but is there anyway to run drl with your low beams? I have a 12 wrx
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Old 12-10-2016, 04:03 PM   #198
Big-E
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I recently converted my fog-lamps to function as the DRL's and continue to be used as fog-lamps when the head-lamps are on. To do so, I installed a dual-relay harness from Prolightz. The harness is set-up for power through one of the relays and ground through the other relay.

The trigger to activate the relay is the power-feed from the OEM DRL/high-beam circuit. The power and ground for the fog-lamps come directly from the battery when the DRL function is in use. When the head-lamps are turned on, the relays are shut-off and return to a normally closed function, which allows for the OEM fog-lamp circuit to power both fog-lamps.

I modified this harness to, in my opinion, function properly.

It is designed to use the power from the DRL circuit to trigger the relays, and the ground-side of the trigger is fed-back into the DRL loop to the high-beams. If you are using LED high-beams, this allows power to flow to them and partially activate them.

To resolve this and not use the additional new resistor, i simply cut-off the ground-end of the trigger and installed an eyelet. I then grounded the eyelet directly to the body where the OEM resistor was held in place. No need for a new resistor and no need for any other wire-taps or other items tha can potentially expose the wiring to the elements.
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Old 06-13-2017, 08:45 PM   #199
Zombaru
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Just completed this on my 17 Limited. Looks so much better and will look even better when my Morimoto XBs come in

SIDE NOTE: On my 2017 Limited, the wire I needed to tap on the fog light side was solid white. The DRL wire remains green.
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Old 06-13-2017, 08:57 PM   #200
Zombaru
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Quote:
Originally Posted by VA8 View Post
Dumb question, but is there anyway to run drl with your low beams? I have a 12 wrx
Easiest way is to just turn your headlights on and adjust the dimmer on the dash lights so you can see them in the sunlight.

The more complicated way would be to do the same thing as in these instructions but wire them up to the low beam bulbs instead of the fog lights. You may need to power each light individually though. I wouldn't know without testing it.

IMO it would look like poopy but to each their own.
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