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05-12-2005, 02:02 AM | #1 |
Scooby Newbie
Member#: 80358
Join Date: Jan 2005
Chapter/Region:
NWIC
Location: Behind the Wheel
Vehicle:2005 18G EJ25WRX 6sp Tuned by Bobby @ PRE |
Rear Fog Light: How To
After lots of searching with scattered bits of information here and there, I decided to write up a "how to" on hooking up the OEM rear fog light on my 05 WRX using another OEM front fog light switch (didn't feel like dropping crazy $ and waiting for shipping over seas for an actual OEM rear fog light switch). WRX's in the States don't get the rear fog like other markets across the Globe, but do have the bulb and wire ready to go***8230;just have to extend the wire to the front of the car. Thanks to RalliTek for getting the switch super fast and my bro Steve for wiring tips!
I'm sure you all know the rear fog light is found almost everywhere else besides the States***8230;why I don't know. It's a great safety precaution during adverse weather. It's always red and found either on the driver side rear, both sides rear, or in some rare cases middle rear. Basically its there so others coming up from behind can spot you in foggy or raining weather. Here in both the Seattle and Portland area we get our share of both. Here is what I used: -OEM Fog light switch Part # 83001FE000 -5 post relay (a 4 post will probably work as 87a isn't used, but I had a 5 post laying around) -Inline fuse holder and Fuse (I used a 30A because I had one laying around...10A will probably work fine) -Wire splices, wire, female ends to connect to posts on relay, etc Here's what I did: 1) One the driver side tail light on the middle tail light bulb under electrical tape there is a wire about 3" long coming from the bulb not attached to anything. This is a double filament bulb one lights up with the tail lights and the other will light up as the rear fog light. Extend this wire to the front of the car to reach under the dash to where the switch will be. 2) Drop the plastic dash panel under the steering wheel by removing the one plastic screw on the side and two metal screws below***8230;the top is held in with 3 clips, 2 on the left side of the steering wheel and one on the right. 3) Disconnect the harness for the fog light switch and any other switches you may have. Now everything is exposed and you have room to work. 4) Looking at the fog light switch harness you'll see there are 5 wires. My kindergarten style drawing should explain the rest. So when all is wired up, the rear fog light switch will look just like the front fog light switch (will light with dash lights and on light will come on when pushed). The rear fog light will come on independently of the front fog lights, but will need the headlights on in order to be activated just like the front fogs. High beams will also turn off the rear fog light just like it does the front fog lights which is kind of lame, but you really shouldn't use your high beams in the fog right? And please don't be "that guy" who drives with it on in broad daylight or on a clear night, its rather bright. Feel free to PM or post any questions. Enjoy! Pics of wiring (sorry...camera is kind of old):
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Last edited by WRX-Traterrestrial; 12-13-2012 at 01:01 AM. Reason: Fixed broken picture link |
05-12-2005, 02:08 AM | #2 |
Scooby Newbie
Member#: 80358
Join Date: Jan 2005
Chapter/Region:
NWIC
Location: Behind the Wheel
Vehicle:2005 18G EJ25WRX 6sp Tuned by Bobby @ PRE |
Interior...gotta love the cleanliness of OEM
Tail Lights On, Rear Fog On: Tail Lights On, Rear Fog Off: |
05-12-2005, 03:39 AM | #3 |
Scooby Specialist
Member#: 49018
Join Date: Nov 2003
Vehicle:03 wrx |
cool. nice work
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05-12-2005, 03:59 AM | #4 |
Scooby Newbie
Member#: 81042
Join Date: Feb 2005
Location: Oxford UK
Vehicle:2000 5 door turbo Silver |
We've had rear fogs here in UK for some years now. They REALLY work.
I have wired my relay to earth via 2 diodes and through the indicators. That way when both indicators are on (hazards flash), the rear fogs go off. As a result, they flash in oposition to the hazard lights. Thats also very effective, especiallty if you have one each side. Two final points, our rear fog switch goes off when it looses the supply so when we turn our main lights off, the rear fogs go off and do not come back on. Our wiring also feeds the rear fog switch via 2 diodes from both the front fogs and headlamps so that either being on will enable the rear fogs to operate. Ours don't go off with main beam BTW. John |
05-12-2005, 10:18 AM | #5 |
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Member#: 16574
Join Date: Mar 2002
Location: Vancouver, BC
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So the UK rear fogs work on both rear tail lights?
Thanks. |
05-12-2005, 10:26 AM | #6 |
Scooby Specialist
Member#: 39017
Join Date: Jun 2003
Chapter/Region:
Tri-State
Location: Raleigh, NC / Kingston, NY
Vehicle:2017 VW Alltrack "R" |
im in the process of getting a rear foglight switch from the uk...i already did this upgrade on my crx and it definatly helps a lot for people seeing you...
thanks for the how-to...cant wait to use it... |
05-12-2005, 01:42 PM | #7 |
Cowabunga!
Super Moderator Member#: 185
Join Date: Aug 1999
Chapter/Region:
South East
Location: Orlando, Fl
Vehicle:2014 Impreza Sport Ice Silver Metalic |
Want to know if the 05 Legacy has space for the extra bulb
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05-12-2005, 01:49 PM | #8 |
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Member#: 16574
Join Date: Mar 2002
Location: Vancouver, BC
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Got a PN for the rear fog switch??? I have goodies coming from the Left Shore or the Right Shore on a weekly basis.
Geo |
05-12-2005, 01:52 PM | #9 |
Scooby Specialist
Member#: 39017
Join Date: Jun 2003
Chapter/Region:
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Location: Raleigh, NC / Kingston, NY
Vehicle:2017 VW Alltrack "R" |
no, im getting a used one hopefully...i dont see how they should/could be so expensive used, every car has to have them for them to be road legal...plus shipping shouldn't be more than a 5 spot for 5-7 days either...
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05-12-2005, 02:49 PM | #10 |
Cowabunga!
Super Moderator Member#: 185
Join Date: Aug 1999
Chapter/Region:
South East
Location: Orlando, Fl
Vehicle:2014 Impreza Sport Ice Silver Metalic |
gonna have to turn the rear parking light into a dual filament bulb to make this work on hte LegacyGT.
Geo, see if you can get ahold of rear fog switches for the 04~ Legacy as well please. |
05-12-2005, 10:52 PM | #11 |
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Join Date: May 2000
Location: AL
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Thanks for the write up. I'll be doing this mod.
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05-13-2005, 08:20 AM | #12 | |
Scooby Newbie
Member#: 81042
Join Date: Feb 2005
Location: Oxford UK
Vehicle:2000 5 door turbo Silver |
Quote:
On my car, the rear fog is a seperate bulb, single filament, 21W. I am fitting another light into the passenger side light cluster. The lense is there, the fitting for the bulb holder is there. I put the bulb and holder from the reverse light into the rear fog position and the light was dimmer than the drivers side rear fog. The cheapskates at Subaru didn't fit a reflector on the passenger side. Must have saved themselves a good 3c. Later cars may have both rear fogs working. I am now working at installing a 12 volt halogen dichroic domestic light into my passenger side rear fog as it has it's own reflector. John |
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05-13-2005, 08:21 AM | #13 | |
Scooby Newbie
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Vehicle:2000 5 door turbo Silver |
Quote:
John |
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05-13-2005, 08:27 PM | #14 |
Scooby Specialist
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Join Date: Aug 2001
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NESIC
Location: CT
Vehicle:2013 STI Hatchback 2015 BMW X6 |
Anyone know if this will work on an 02 wagon? I might have to go out and check the tail light to see if there's a double filament red bulb. This write up is just what I've been looking for. Thanks for taking the time to do this, WRX traterrestrial.
Mike |
05-14-2005, 03:20 AM | #15 | |
Scooby Newbie
Member#: 80358
Join Date: Jan 2005
Chapter/Region:
NWIC
Location: Behind the Wheel
Vehicle:2005 18G EJ25WRX 6sp Tuned by Bobby @ PRE |
Y
Quote:
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05-14-2005, 06:16 PM | #16 | |
Scooby Specialist
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MWSOC
Location: Streamwood, IL
Vehicle:2007 Trailblazer AWD 3LT Sandstone Metallic |
Quote:
Erm, what is your 3rd button on the dash? On my 04 WRX, i have fog, and cruise buttons next to each other. It doesnt look like you have a cruise button, but a wiper control or some sort? Yet you have a sedan and no rear wiper so it cant be for that. Sorry its off subject, but im curious what its for... |
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05-14-2005, 08:23 PM | #17 |
Scooby Specialist
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Well, I took a quick look at the driver side tail light on MY02 wagon and the only double filament bulb I have back there is the brake/parking light. The only other light that sits behind the red plastic is the parking wedge bulb, which is only a single filament 5W bulb. This won't work. I didn't take the time to cut back the wrapped wiring to see if there's a loose wire, as stated by WRX traterrestrial(it was getting dark). Does the sedan have an extra bulb in the red besides the parking and brake? From the pics above, it doesn't look like it. Was this simply done w/ the brake light?
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05-14-2005, 08:25 PM | #18 |
Scooby Specialist
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Join Date: Aug 2001
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NESIC
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Vehicle:2013 STI Hatchback 2015 BMW X6 |
WRX traterrestrial...can you somehow take a pic of the rear fog w/ the brakes on? I know this would be hard w/ one person, but maybe you can have someone lend a hand. Thanks!
Mike |
05-15-2005, 12:40 AM | #19 | |
Scooby Newbie
Member#: 80358
Join Date: Jan 2005
Chapter/Region:
NWIC
Location: Behind the Wheel
Vehicle:2005 18G EJ25WRX 6sp Tuned by Bobby @ PRE |
Quote:
prelude/2.5rs: I thought the 02-03 tail lights were similar in function to the 04-05. Behind the red reflector is 3 bulbs...the middle one normally only lights as a tailight, but should have another fillament (and cut wire under electrical tape) that will light as the rear fog when hooked up. I could be mistaken as I haven't looked at the 02-03 tail lights. Hope it works out for you! |
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05-15-2005, 12:48 AM | #20 | |
Scooby Newbie
Member#: 80358
Join Date: Jan 2005
Chapter/Region:
NWIC
Location: Behind the Wheel
Vehicle:2005 18G EJ25WRX 6sp Tuned by Bobby @ PRE |
Quote:
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05-15-2005, 08:11 AM | #21 |
Scooby Specialist
Member#: 9355
Join Date: Aug 2001
Chapter/Region:
NESIC
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Vehicle:2013 STI Hatchback 2015 BMW X6 |
Thanks for the info. It looks as though the 02/03 wagon does not have a third light in the red section. I'll have to take a better look today. This is a great and simple mod for the sedans though. Good luck to those who try it!
Mike |
05-15-2005, 08:16 PM | #22 |
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Vehicle:2017 2.0 XT Premium Quartz Blue Pearl |
I have an 05 WRX wagon, I took the tail light assy. out but can't find a loose wire.
What color is it? Black, Green, or Red. E mail me. Last edited by Rhys; 05-15-2005 at 08:18 PM. Reason: Need to add more |
05-16-2005, 03:29 AM | #23 | |
Scooby Newbie
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Vehicle:2000 5 door turbo Silver |
Quote:
Also be aware that Subaru don't always fit reflectors in unused lamp locations. John |
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05-16-2005, 06:53 AM | #24 |
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South East
Location: Panama City FL (Tyndall AFB)
Vehicle:2010 Impreza WRX KTM 250sx |
When the light conversion was performed on MY WRX they just installed the fog light into the right backup light. Simple and clean.
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05-16-2005, 07:19 AM | #25 | |
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Quote:
John |
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