Welcome to the North American Subaru Impreza Owners Club Tuesday June 2, 2020
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Electrical & Lighting

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 09-26-2013, 10:30 PM   #101
jrSTi21
Scooby Newbie
 
Member#: 332095
Join Date: Sep 2012
Chapter/Region: MAIC
Location: Walkersville,MD
Vehicle:
2011 STi Hatch
LR

Default

Quote:
Originally Posted by Bluefoton View Post
What do you mean with DRLs connected? This mod keeps the DRL function (ie front lights with no cluster, marker, or back lights), it just rewires it so that fog lights - at full voltage - are lit instead of high beams at reduced voltage.

And HIDs in fogs are a no-no
So an update. I kept my drls plugged in. Here is the sequences:

Car on, e brake off: drl and fogs on
Parking lights switched on: fogs and drl still on.
Low beam on: fogs and drls on.

I'm not happy that the drls stay on now with the low beams. Any suggestions? I currently unplugged the drls so only the fogs are on, but I really like the yellow drl with fogs....just don't want drls to stay on with the low beams. I unplugged the tap and normal operation has the drls turn off when low beams are on.
* Registered users of the site do not see these ads.
jrSTi21 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-27-2013, 11:55 AM   #102
jrSTi21
Scooby Newbie
 
Member#: 332095
Join Date: Sep 2012
Chapter/Region: MAIC
Location: Walkersville,MD
Vehicle:
2011 STi Hatch
LR

Default

Looks like I need a diode to put inline with this spliced wire. This will allow the 12V to be supplied to the fogs when headlights are off, but once headlights are on it will not supply power to the DRL via the fogs, as it is now.

I know we have a 12V 55W bulb, what amps are we looking at here so I can get the right diode inline? Are there any electrical guru's out there that could help?

I figured out that when the headlights are off, obvioulsy this splicing pulls the 12V from the DRL's. However when the headlights are on the DRL power is removed and the fogs get teh 12V from the headlights. This 12V supplies the DRL's then. So I'm thinking if I find a +12V diode that can allow the supply to the fogs, but once the headlights are turned on it will block the power supply from the fogs to the DRL's. I'm not sure what amperage or wattage (maybe 55W) I need in the diode? HELP....

Last edited by jrSTi21; 09-27-2013 at 12:51 PM.
jrSTi21 is offline   Reply With Quote
Old 09-27-2013, 05:20 PM   #103
Bluefoton
Scooby Guru
 
Member#: 141373
Join Date: Feb 2007
Chapter/Region: E. Canada
Location: Quebec, QC
Vehicle:
2018 Crosstrek Sport
6MT

Default

Something doesn't add up there. If no mods are done, DRLs are your high beams. This is what is supposed to happen then:

Car on, lights off, ebrake off: DRLs (high beams) on, reduced intensity
Car on, lights off, ebrake on: DRLs off
Car on, position lights on, ebrake off: DRL (high beams on, reduced intensity)
Car on, position lights on, ebrake on: DRLs off
Car on, headamps (lows) on, ebrake off: DRLs OFF (high beams off)
Car on, headlamps (highs) on, ebrake off: DRL off, high beams are lit.
Fogs work if lows are on, otherwise they're always off

If you do the DRL fog light mod bypassing the resistor, DRLs become fogs. Thus:

Car on, lights off, ebrake off:fogs on
Car on, lights off, ebrake on: fogs off
Car on, position lights on, ebrake off: fogs on
Car on, position lights on, ebrake on: fogs off
Car on, headamps (lows) on, ebrake off: fogs off
Car on, headlamps (highs) on, ebrake off: fogs off

Here, the fogs switch allows you to turn them on with low beams on.
Bluefoton is offline   Reply With Quote
Old 09-28-2013, 05:12 PM   #104
tenaciousZ
Scooby Newbie
 
Member#: 342279
Join Date: Jan 2013
Location: Pacific NW
Vehicle:
2012 Impreza Sport
DGM

Default

wiring mod worked as described on my 2012 impreza sport.. i wired my corner 'eyebrow' lights to run as my DRLs and swapped the stock halogens with some white wide angle LEDs.

obligatory wisdom: i used 14g solid wire and had to take the airbox back off (after a failed test of the DRL function with the car actually on) and used some pliers to squeeze the splice taps on the resistor end of the jumper wire tighter to get a better connection. had a moment where i thought i might have tapped the wrong wire (red w/ white vs white w/ red on the corner light) but as is often the case, good connections are key.

I do have a follow up question, tapping into my corner lights has made the rest of my marker lights (even in the back) also light up as DRLs. Apparently they are all wired in series, which makes sense, much like how connecting to one fog light powers the other. My interpretation of this quirk is that somewhere after the passenger side corner light needs to be clipped so that power isn't fed through the whole circuit but im lost as to which/where or how this might interfere with my marker light function.. Has anyone run into a similar issue using something other than the fogs as DRLs that could shed some light on this?
tenaciousZ is offline   Reply With Quote
Old 09-28-2013, 08:51 PM   #105
jrSTi21
Scooby Newbie
 
Member#: 332095
Join Date: Sep 2012
Chapter/Region: MAIC
Location: Walkersville,MD
Vehicle:
2011 STi Hatch
LR

Default

Quote:
Originally Posted by Bluefoton View Post
Something doesn't add up there. If no mods are done, DRLs are your high beams. This is what is supposed to happen then:

Car on, lights off, ebrake off: DRLs (high beams) on, reduced intensity
Car on, lights off, ebrake on: DRLs off
Car on, position lights on, ebrake off: DRL (high beams on, reduced intensity)
Car on, position lights on, ebrake on: DRLs off
Car on, headamps (lows) on, ebrake off: DRLs OFF (high beams off)
Car on, headlamps (highs) on, ebrake off: DRL off, high beams are lit.
Fogs work if lows are on, otherwise they're always off

If you do the DRL fog light mod bypassing the resistor, DRLs become fogs. Thus:

Car on, lights off, ebrake off:fogs on
Car on, lights off, ebrake on: fogs off
Car on, position lights on, ebrake off: fogs on
Car on, position lights on, ebrake on: fogs off
Car on, headamps (lows) on, ebrake off: fogs off
Car on, headlamps (highs) on, ebrake off: fogs off

Here, the fogs switch allows you to turn them on with low beams on.
Correct. But I don't want my drls on when the low beams are on. The fog tap into drls was causing 12v supply from the fogs under low beam power on to keep the drls on. I just installed a 6A diode to block the power back to the drls when the low beams are switched. I did this last night and it worked perfect! So here is the new sequence:
Car on, low beams off, ebrake up: drls and fogs off.
Car on, low beams off, ebrake off, drls and fogs on.
Car on, low beams off, ebrake off, parking lights on, drls and fogs on.
Car on, low beams on, engage off, fogs on, drls off. Fogs function on/off as normal with switch under low beam operation.

It looks awesome and will improve once I bake the headlights and paint the high beam reflectors yellow.
jrSTi21 is offline   Reply With Quote
Old 09-29-2013, 11:34 PM   #106
Bluefoton
Scooby Guru
 
Member#: 141373
Join Date: Feb 2007
Chapter/Region: E. Canada
Location: Quebec, QC
Vehicle:
2018 Crosstrek Sport
6MT

Default

This is more and more confusing You seem to have powered your DRL high beam with fogs whereas I replaced DRLs in high beams by fogs (so highs never light up unless turned on with the headlamp stalk. Anyways, if you're happy it's all that matters
Bluefoton is offline   Reply With Quote
Old 09-30-2013, 10:59 AM   #107
jrSTi21
Scooby Newbie
 
Member#: 332095
Join Date: Sep 2012
Chapter/Region: MAIC
Location: Walkersville,MD
Vehicle:
2011 STi Hatch
LR

Default

Quote:
Originally Posted by Bluefoton View Post
This is more and more confusing You seem to have powered your DRL high beam with fogs whereas I replaced DRLs in high beams by fogs (so highs never light up unless turned on with the headlamp stalk. Anyways, if you're happy it's all that matters
But you unplugged the DRL's correct?

I have kept my DRL's plugged in. If I unplug the DRL's there is no issue, but I want the DRL's to be on with the fogs. Since the fogs are getting power when headlights are turned on and there is nothing controlling the direction of current, the 12V supply to the fogs with headlights will go to the DRL's if you keep them plugged in. Look at post #34. He had the same results I did with the DRL's still plugged in. He didn't remove the DRL's eliminate the DRL's from staying on when the headlights are on as you can see in the picture. I didn't like this look, so opted for a diode to be inline to control current direction. I'll take pictures one day, but post #34 had the same results, until I installed the 6A 50V diode.
jrSTi21 is offline   Reply With Quote
Old 09-30-2013, 11:02 AM   #108
jrSTi21
Scooby Newbie
 
Member#: 332095
Join Date: Sep 2012
Chapter/Region: MAIC
Location: Walkersville,MD
Vehicle:
2011 STi Hatch
LR

Default

Quote:
Originally Posted by Bluefoton View Post
This is more and more confusing You seem to have powered your DRL high beam with fogs whereas I replaced DRLs in high beams by fogs (so highs never light up unless turned on with the headlamp stalk. Anyways, if you're happy it's all that matters
Also it's not the DRL high beam that is turned on. It's the DRL's low voltage that is powered. The high beams still work as normal, its just the DRL's low beam is powered off the fogs. If you disconnected the DRL's and did exactly as shown for the DIY you won't have this, but it will be noticeable if you plug the DRL's back in with this DIY. If you try this, it will all make sense.

But I am happy now that I put the diode in!
jrSTi21 is offline   Reply With Quote
Old 10-02-2013, 08:42 PM   #109
tenaciousZ
Scooby Newbie
 
Member#: 342279
Join Date: Jan 2013
Location: Pacific NW
Vehicle:
2012 Impreza Sport
DGM

Default

Quote:
Originally Posted by jrSTi21 View Post
... until I installed the 6A 50V diode.
Hey jrSTi21, I'm curious how you arrived at the rating above for the diode appropriate for this application and where you bought it from.. I have a DRL lighting issue that could likely be resolved by using a similar control of current direction. Thanks!
tenaciousZ is offline   Reply With Quote
Old 10-03-2013, 08:34 AM   #110
jrSTi21
Scooby Newbie
 
Member#: 332095
Join Date: Sep 2012
Chapter/Region: MAIC
Location: Walkersville,MD
Vehicle:
2011 STi Hatch
LR

Default

Quote:
Originally Posted by tenaciousZ View Post
Hey jrSTi21, I'm curious how you arrived at the rating above for the diode appropriate for this application and where you bought it from.. I have a DRL lighting issue that could likely be resolved by using a similar control of current direction. Thanks!
We have a 12v system, which can spike to ~14v. The bulb for fogs and I believe DRL's are rated for 55W. So A=W/V which means 55/12 = 4.6a or 55/14 = 4a. The diode is rated for 50V max and 6a max which means this should work for the system, as it does.

I got the diode from Radio Shack: part number 276-1661:
http://www.radioshack.com/product/in...ductId=2062591
jrSTi21 is offline   Reply With Quote
Old 10-25-2013, 09:43 AM   #111
tenaciousZ
Scooby Newbie
 
Member#: 342279
Join Date: Jan 2013
Location: Pacific NW
Vehicle:
2012 Impreza Sport
DGM

Default

Hey, thanks for the info.. So the DRL wiring mod to have my eyebrow lights (2012 2.0i) work without lighting up the rest of the marker lights (common relay) was a success! I must say, I love the unique look and also plan to add a LED strip too.

I'll try and get some better pictures than what I've taken so far done this weekend.. Its been tough to get good ones since we've had literally two weeks of fog here in the Seattle area.
tenaciousZ is offline   Reply With Quote
Old 11-27-2013, 10:34 PM   #112
ogre427
Scooby Newbie
 
Member#: 374775
Join Date: Nov 2013
Location: Western Nebraska USA
Default

Hi all,
I'm a new member to this forum, this is my first post. I'm planning on doing this mod to my 2014 XV Crosstrek as well as upgrading the fog lights to the Outback 55 W housings. I plan on using adapter pigtails to tie the factory harness to the new bulbs. Since part of this mod involves disconnecting the daytime running light resistor I was thinking I would remove the resistor, cut off the plug where it goes into the resistor housing, tape off the unused output wire from the plug, and connect (solder and insulate) the plug to the adapter pigtail. I see several advantages to this, the first being no need to use vampire clips or modify the factory wiring harness, second everything plugs into the original factory harness, and third if for some reason you decide to go back to the original set up all you have to do is buy a new DRL resistor and plug everything back in. I was wondering if anyone can see a problem with this plan? Thanks.
ogre427 is offline   Reply With Quote
Old 12-02-2013, 02:22 PM   #113
CJ3W
Scooby Newbie
 
Member#: 364657
Join Date: Aug 2013
Chapter/Region: MWSOC
Location: Baltimore, MD
Vehicle:
2013 WRX Premium
Dark Metallic Grey

Default

Hey thanks for the write up. I just just a double vampire tap and ran the wires next to each other. Took 5 min to do after I double checked your work on the schematics. I didn't know the resistor was in such a convenient spot!
CJ3W is offline   Reply With Quote
Old 02-07-2014, 09:59 AM   #114
quynvu
Scooby Newbie
 
Member#: 371765
Join Date: Oct 2013
Location: MD
Vehicle:
2013 Impreza Sport

Default

Hey thanks so much for this write up! I think this definitely made my week. This works awesomely, especially with the rigid industries dually floods that I just replaced my fogs with.
quynvu is offline   Reply With Quote
Old 02-07-2014, 06:34 PM   #115
subyski
Scooby Specialist
 
Member#: 202642
Join Date: Nov 2007
Chapter/Region: RMIC
Location: Centennial, Colorado
Vehicle:
08 Impreza,80Vette
68 Impala, 15 SantaFe

Default

I did this mod to my 08 2.5i a couple months ago and works perfectly. Thanks for the writeup.
subyski is offline   Reply With Quote
Old 03-14-2014, 08:39 PM   #116
jsteg
Scooby Specialist
 
Member#: 329271
Join Date: Aug 2012
Chapter/Region: South East
Location: Lady's Island, SC
Vehicle:
2012 Impreza Limited
Ice Silver Metallic

Default

Quote:
Originally Posted by max6spd View Post
Many thanks to the OP. did this on my Forester and it works great.
Did this on my 12 impreza and it was a piece of cake! Now I want to do it in my wife's 04 Forester XT but not sure if process would be the same...can anybody confirm?
jsteg is offline   Reply With Quote
Old 03-14-2014, 10:56 PM   #117
tna2327
Scooby Newbie
 
Member#: 296502
Join Date: Oct 2011
Chapter/Region: MAIC
Location: Annapolis
Vehicle:
2012 WRX Premium
Black

Default

Can't confirm but, this to date is still one of my favorite mods Nothing like pulling up behind a car and you can see your reflection with the fogs and side marker lights on...so sexy!
tna2327 is offline   Reply With Quote
Old 03-15-2014, 05:38 AM   #118
ronjr8102
Scooby Specialist
 
Member#: 216040
Join Date: Jul 2009
Chapter/Region: NESIC
Location: Worcester, MA
Vehicle:
2013 Impreza 2.0i5dr
dark metallic grey

Default

Im waiting on my OEM fogs in the mail. I was thinking of doing the independent mod and also already disabled the DRLS but will do this mod instead cuz its pretty much the same as independent mod. Fogs on without anything else when u are normally driving.
ronjr8102 is offline   Reply With Quote
Old 03-15-2014, 09:28 AM   #119
OilyPablo
Scooby Newbie
 
Member#: 373554
Join Date: Nov 2013
Chapter/Region: NWIC
Location: PNW -WA STATE - rainy side
Vehicle:
2014 LTD WRX HATCH
The White Whale

Default

REBinc - this is a really awesome idea. I rather not do it with vamp taps. Has anyone done this by plugging a mating connector into each side? Of course, where the heck would I find such connectors?

Part numbers??? Ideas where to find the connectors? Junkyard? New?

I'm crazy, but just want to plug in, not cut into insulation.

Thanks!!
OilyPablo is offline   Reply With Quote
Old 03-15-2014, 10:01 AM   #120
Scooby207
Scooby Specialist
 
Member#: 255687
Join Date: Aug 2010
Chapter/Region: NESIC
Location: Maine
Vehicle:
11 WRX DGM

Default

Not exactly but I sure do like posi-taps more than vamp clips.

Last edited by Scooby207; 03-15-2014 at 10:13 PM.
Scooby207 is offline   Reply With Quote
Old 03-15-2014, 10:41 AM   #121
OilyPablo
Scooby Newbie
 
Member#: 373554
Join Date: Nov 2013
Chapter/Region: NWIC
Location: PNW -WA STATE - rainy side
Vehicle:
2014 LTD WRX HATCH
The White Whale

Default

Do you remember off the top of your head what type of connector plugs into the big DRL power resistor?

Seems like the 9006 female side is easy.
OilyPablo is offline   Reply With Quote
Old 03-15-2014, 02:59 PM   #122
OilyPablo
Scooby Newbie
 
Member#: 373554
Join Date: Nov 2013
Chapter/Region: NWIC
Location: PNW -WA STATE - rainy side
Vehicle:
2014 LTD WRX HATCH
The White Whale

Default

My local parts place had females and I ordered two males. I'll post pics of the mini harness at some point.
OilyPablo is offline   Reply With Quote
Old 03-18-2014, 02:31 AM   #123
navbee
Scooby Newbie
 
Member#: 384915
Join Date: Mar 2014
Default

Nice stuff!
navbee is offline   Reply With Quote
Old 03-20-2014, 11:33 PM   #124
OilyPablo
Scooby Newbie
 
Member#: 373554
Join Date: Nov 2013
Chapter/Region: NWIC
Location: PNW -WA STATE - rainy side
Vehicle:
2014 LTD WRX HATCH
The White Whale

Default

I got the male connectors.....will be soldering tomorrow if all goes well.
OilyPablo is offline   Reply With Quote
Old 03-21-2014, 09:11 PM   #125
OilyPablo
Scooby Newbie
 
Member#: 373554
Join Date: Nov 2013
Chapter/Region: NWIC
Location: PNW -WA STATE - rainy side
Vehicle:
2014 LTD WRX HATCH
The White Whale

Default My mini wire harness

OK, super simple, installed and works perfectly. All behavior is nominal. Foglights are DRL's. Was tired as heck, but wanted to get it done and frankly working on cars de-stresses me. The only bone head move was assuming the resistor plug is the same as a 9005/9006 type. The pins are the same though. So I just depinned one of my male connectors (red wire), wrapped my HD desert electrical tape on it to insulate the exposed portion of the crimp and shoved it in the +12V side (green wire) on the resistor plug. Then that red wire is soldered to the wires in the harness that powers the fog lights. The other sides (black wires) are just soldered together. All the soldered wires are shrink sleeved.
Sorry for the crappy pictures:




I left the wire long and dangly because I was in experimental mode. I have since zip tied it all up. I will run it like this, and see if I can find a proper mating connector.

OilyPablo is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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
Forum Jump

All times are GMT -4. The time now is 10:44 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.