Welcome to the North American Subaru Impreza Owners Club Tuesday September 2, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Subaru Models > Legacy Forum

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.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 06-16-2005, 09:29 PM   #1
lag
Scooby Newbie
 
Member#: 34631
Join Date: Mar 2003
Chapter/Region: MAIC
Location: do you know what it is
Vehicle:
to live in fear

Default BD JDM headlight swap.

Just got finished with the swap. I got the headlights and side marker lights from a fellow forum member, Huffer. Haven't quite figured out how to get the high-beams on properly. I'm sure it's been discussed but I can't find the thread, so if some one can provide the link.

The easiest way for me to post up the before and after pics is to cross link to another forum...

http://www.rx7club.com/showthread.ph...75#post4463375

Those of you familar with the Rx7club know they can be "unique" so don't pay to much mind to 'em.
* Registered users of the site do not see these ads.
lag is offline   Reply With Quote
Old 06-16-2005, 09:36 PM   #2
subysouth
Scooby Guru
 
Member#: 5039
Join Date: Mar 2001
Chapter/Region: South East
Location: Ocean Springs, MS
Vehicle:
2007 Outback XT
Grey 5-speed

Thumbs up

I cant tell much from the pics but you get an "a" for effort.

ss
subysouth is offline   Reply With Quote
Old 06-16-2005, 10:56 PM   #3
xcntrk75
Scooby Specialist
 
Member#: 60224
Join Date: Apr 2004
Chapter/Region: MAIC
Location: NOVA
Vehicle:
2008 FXT Sports 2.5
Dark Grey Metallic

Default

Looks good… I just finished wiring my projectors up as well (which I also got from another member) and found my stock 98 BD wiring to be completely different then some of the diagrams floating around here. I ended up rewiring them 3 times before getting it right. Since yours is a 98’ as well, I’d be happy to help if you need it.



PS: With my stock wiring, the solid RED is high-beam…
xcntrk75 is offline   Reply With Quote
Old 06-17-2005, 03:07 AM   #4
norabder
Scooby Newbie
 
Member#: 40530
Join Date: Jul 2003
Chapter/Region: NESIC
Location: Dennis. Ma
Vehicle:
2008 Legacy
Quartz Silver Metallic

Default

I got my lights in finally as well. Everybody's got'em or got to have'em


There she is at the "WBM" wicked big subaru meet in MA


Some great cars and people. BACK To the headlight, I got a wiring diagram for the lights I just need to scan it. I'll try to get it soon don't have acess to a scanner right at the moment.
norabder is offline   Reply With Quote
Old 06-17-2005, 09:10 AM   #5
lag
Scooby Newbie
 
Member#: 34631
Join Date: Mar 2003
Chapter/Region: MAIC
Location: do you know what it is
Vehicle:
to live in fear

Default

Yepper, I need wiring help. I'm usually good at that type of thing, but as you can see from the pics it was about going on 9pm so I didn't really have a lot to work with///I didn't start until about 8 so that's my fault.
lag is offline   Reply With Quote
Old 06-17-2005, 10:20 AM   #6
masube
Scooby Newbie
 
Member#: 59226
Join Date: Apr 2004
Chapter/Region: MWSOC
Location: Twin Cities
Vehicle:
2005 Sti
WRB

Default

Wow nice pic norabder.
masube is offline   Reply With Quote
Old 06-17-2005, 10:22 AM   #7
crazex
Scooby Newbie
 
Member#: 27677
Join Date: Oct 2002
Chapter/Region: Tri-State
Location: Philly
Vehicle:
2005 STI
Crystal Gray

Default

Here is the wiring harness diagram. Subaru switches grounds, not power.

crazex is offline   Reply With Quote
Old 06-17-2005, 11:47 AM   #8
xcntrk75
Scooby Specialist
 
Member#: 60224
Join Date: Apr 2004
Chapter/Region: MAIC
Location: NOVA
Vehicle:
2008 FXT Sports 2.5
Dark Grey Metallic

Default

^^^^
See that’s the diagram I was referencing which didn’t match my existing 98 BD wiring whatsoever. Lag I imagine your wiring is the same as mine. I have the following wires on the stock BD plugs:

LH:
Red - HIGH BEAM
Red/Blue - POWER (MB-6)
Yellow/Blue - LOW BEAM

RH:
Red - HIGH BEAM
Black/Yellow - POWER (MB-8)
Yellow/Blue - LOW BEAM

Just correspond these to the JDM lights. Keep in mind that the running lights can be wiring on either low or high beam, if you want them at all.
xcntrk75 is offline   Reply With Quote
Old 06-17-2005, 01:42 PM   #9
crazex
Scooby Newbie
 
Member#: 27677
Join Date: Oct 2002
Chapter/Region: Tri-State
Location: Philly
Vehicle:
2005 STI
Crystal Gray

Default

The colors of the wires may be different, but they should function the same way. Basically, make sure that when you are wiring them you make it so the ground switches when you change beams. The power stays constant to each bulb.


-Jon-
crazex is offline   Reply With Quote
Old 06-19-2005, 02:09 AM   #10
subiekid
Scooby Guru
 
Member#: 25516
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Send help, stuck in internet!
Vehicle:
1995 Legacy TURBO!!!
EJ22T/TEC3 & '12 Civic

Default

norabder,

you need a motor swap and painted trim and we can be brothers.
subiekid is offline   Reply With Quote
Old 06-19-2005, 02:37 AM   #11
hklaine
Scooby Newbie
 
Member#: 55320
Join Date: Feb 2004
Location: Hunterdon County - NJ
Default

Quote:
Originally Posted by xcntrk75
LH:
Red - HIGH BEAM
Red/Blue - POWER (MB-6)
Yellow/Blue - LOW BEAM

RH:
Red - HIGH BEAM
Black/Yellow - POWER (MB-8)
Yellow/Blue - LOW BEAM
I found this text document kicking around. Maybe test it with your multimeter and see if it makes sense?

LH:
Low: B/Y+ Y/B-
High: B/Y+ R-

RH:
Low: R/B+ Y/B-
High: R/B+ R-

It was in a folder of pics I took when I installed the relays and new wiring to my high-wattage headlights which are working so as long as it was my last version it should be correct (my headlights work). Hope it helps and/or is correct.

-Heikki
hklaine is offline   Reply With Quote
Old 06-20-2005, 06:31 PM   #12
lag
Scooby Newbie
 
Member#: 34631
Join Date: Mar 2003
Chapter/Region: MAIC
Location: do you know what it is
Vehicle:
to live in fear

Default

Thanks people, I should have some time this week to finalize this.

Thanks again, --
lag is offline   Reply With Quote
Old 06-21-2005, 06:36 AM   #13
SubaruGenki
Scooby Specialist
 
Member#: 65058
Join Date: Jun 2004
Chapter/Region: NWIC
Location: Frederickson, WA
Vehicle:
02 Eagle Summit
TSi

Default

You have a rotary too?
SubaruGenki is offline   Reply With Quote
Old 06-21-2005, 04:12 PM   #14
etam
Scooby Specialist
 
Member#: 439
Join Date: Oct 1999
Chapter/Region: E. Canada
Location: yyz
Vehicle:
www

Default

Quote:
Originally Posted by CrAzEx
Here is the wiring harness diagram. Subaru switches grounds, not power.

This is for pre-98 H4 headlights.. starting from 98, 9007 bulbs are used.. you probably need to take out your voltmeter to see which one is switch ground.. when switching between hi and low beam...

oh.. that's a ugly hand-drawn diagram.. I wonder who did that
etam is offline   Reply With Quote
Old 06-22-2005, 12:57 PM   #15
Huffer
Scooby Specialist
 
Member#: 36735
Join Date: May 2003
Chapter/Region: MWSOC
Location: Wellington,NZ / Willoughby,OH
Vehicle:
99 GF8 Impreza 2.0
2= 1998 BD + BK Legacy GT

Default

Looking good lag - hope you get the wiring sorted out.
Huffer is offline   Reply With Quote
Old 09-30-2005, 10:46 PM   #16
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Default

I won a set on Ebay a couple days ago, should have them next week. This will certainly come in handy.

Pat
Patrick Olsen is offline   Reply With Quote
Old 09-30-2005, 10:55 PM   #17
Gator GT
Scooby Specialist
 
Member#: 37190
Join Date: May 2003
Chapter/Region: RMIC
Location: Colorado Springs, CO
Vehicle:
07 specB - 6spds,
4 tips, 3 LSDs, stg 2!!!

Default

mmm, just got me a bonus! time to look for a nice set of these!!

GGT
Gator GT is offline   Reply With Quote
Old 10-16-2005, 05:43 AM   #18
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Default

Stupid question, I'm sure, but... what bulb type(s) do I need for the projector and non-projector? I'll probably try to figure out the install tomorrow, but it would be nice to put fresh bulbs in while I'm at it.

Pat
Patrick Olsen is offline   Reply With Quote
Old 10-16-2005, 09:36 AM   #19
wrx_driver_2002
NASIOC Supporter
 
Member#: 25952
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Under your hood :-)
Vehicle:
1995 Impreza Coupe
w/ "Extras" :-)

Default

Projector is a H1 and High Beam is a H3
wrx_driver_2002 is online now   Reply With Quote
Old 10-16-2005, 12:57 PM   #20
Cajual
Scooby Specialist
 
Member#: 12900
Join Date: Dec 2001
Location: Toronto, Ontario, Canada
Vehicle:
1997 Legacy GT-Turbo
Quick Silver Metallic

Default

And there is a driving lamp as well... it takes a 168 Accessory wedge bulb.
Cajual is offline   Reply With Quote
Old 10-19-2005, 03:22 AM   #21
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Default

Quote:
Originally Posted by CrAzEx
Here is the wiring harness diagram. Subaru switches grounds, not power.

OK, I'm officially confused. Just to be sure I had things straight, I went out to the car with the multimeter to check some voltages. As I describe this, I'm holding the wiring harness with the open end of the plug facing me. With the lights on low beam, I get GND on the top (horizontal) contact, and 12V on both the left and right (vertical) contacts. When I switch over to high beams, I get GND on the top and left contacts, and 12V on the right contact. Based on people saying Subaru switches grounds, I expected that when on low beam the left terminal would be open circuited and the top terminal would be grounded, and when on high beam the top terminal would be open and the left terminal would be grounded. What am I missing here?

Oh, and just to make this interesting (nothing ever goes easy for me when it comes to car projects), the driver side plug is so corroded that the power contact fell apart while trying to clean it. And I have a heavy duty power harness with relays that are switched off that plug, so now I have no headlights until I fix that. (Well, I could just plug the factory harness onto the passenger side headlight, but I'm not one to drive around one-eyed!)

Pat

Last edited by Patrick Olsen; 10-19-2005 at 03:31 AM.
Patrick Olsen is offline   Reply With Quote
Old 10-19-2005, 05:46 PM   #22
T-Leg
Scooby Newbie
 
Member#: 94758
Join Date: Aug 2005
Vehicle:
1991 Sport Sedan
Black

Default

Is it hard, or even possible, to aim these correctly? Japan being RHD and all. I know the earlier JDM lights, BC-BF, can't be aimed to be used on LHD cars. I don't know if the problem is the lense or the reflector.
T-Leg is offline   Reply With Quote
Old 10-29-2005, 06:04 AM   #23
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Default

Quote:
Originally Posted by Patrick Olsen
OK, I'm officially confused. Just to be sure I had things straight, I went out to the car with the multimeter to check some voltages. As I describe this, I'm holding the wiring harness with the open end of the plug facing me. With the lights on low beam, I get GND on the top (horizontal) contact, and 12V on both the left and right (vertical) contacts. When I switch over to high beams, I get GND on the top and left contacts, and 12V on the right contact. Based on people saying Subaru switches grounds, I expected that when on low beam the left terminal would be open circuited and the top terminal would be grounded, and when on high beam the top terminal would be open and the left terminal would be grounded. What am I missing here?
Any help here? I really don't understand how the voltage measurements I've taken correspond to the "Subaru switches grounds" thing. I'm going to remove the 4-prong connectors on the JDM lights and wire it to a "normal" 3-prong plug so it'll be plug-and-play with the stock wiring harness. In order to do that, though, I want to be sure I understand how power is supplied, and right now what I'm measuring doesn't seem to match what I've read is supposed to be the case.

Thanks,
Pat
Patrick Olsen is offline   Reply With Quote
Old 10-29-2005, 09:01 AM   #24
xcntrk75
Scooby Specialist
 
Member#: 60224
Join Date: Apr 2004
Chapter/Region: MAIC
Location: NOVA
Vehicle:
2008 FXT Sports 2.5
Dark Grey Metallic

Default

That sounds like a great approach. Remember the JDM lights have the extra wire (4-prong) for the “driving light” on the outside of the projector. You can combine this accent light with low or high-beam, or simply leave it disconnected. I chose low beam as that’s how the 05’ US projector setup is, but may dissconnect it all together to get the single projector look.

Also, I would leave your connections accessible which you make the first time around with the stock plugs on the JDM lights. This way you can go back and swap some wires around if you don’t get it the first time. Took me about 3 times to get it right. It’s pretty easy but with a lot of trial and error. First time I had “low” on one side with “high” on the other which would reverse when the switch was moved from low-to-high, so it takes some messing with…
xcntrk75 is offline   Reply With Quote
Old 10-30-2005, 01:09 AM   #25
etam
Scooby Specialist
 
Member#: 439
Join Date: Oct 1999
Chapter/Region: E. Canada
Location: yyz
Vehicle:
www

Default

Quote:
Originally Posted by Patrick Olsen
OK, I'm officially confused. Just to be sure I had things straight, I went out to the car with the multimeter to check some voltages. As I describe this, I'm holding the wiring harness with the open end of the plug facing me. With the lights on low beam, I get GND on the top (horizontal) contact, and 12V on both the left and right (vertical) contacts. When I switch over to high beams, I get GND on the top and left contacts, and 12V on the right contact. Based on people saying Subaru switches grounds, I expected that when on low beam the left terminal would be open circuited and the top terminal would be grounded, and when on high beam the top terminal would be open and the left terminal would be grounded. What am I missing here?

Oh, and just to make this interesting (nothing ever goes easy for me when it comes to car projects), the driver side plug is so corroded that the power contact fell apart while trying to clean it. And I have a heavy duty power harness with relays that are switched off that plug, so now I have no headlights until I fix that. (Well, I could just plug the factory harness onto the passenger side headlight, but I'm not one to drive around one-eyed!)

Pat

Pat, your description is correct but don't know why your measurement is NOT.


There are 2 filaments in H4 bulb.. I *think* (anyone can confirm that? ) the way H4 bulb works is switching one on and one off when in either high or low beam.


low beam:
low beam circuit from right connector to top: +ve to -ve; light on
equal potential (same +ve) from right to left connector (high beam circuit); light off

high beam:
right connector to left connector: +ve to -ve; light on
equal potential (same +ve) from right to top (low beam circuit); light off

Your measurement suggests to me that only 1 filament is on when low beam; 2 filaments are on when high beam.

When I did that diagram, I don't remember if I follow the Subaru ground switching scheme. That was my first version to wire it up.. shortly after that.. I made a home-made relay harness to power the bulbs directly from battery.. and then I modified it more when I put in HID.

With high performance wiring harness.. you should be able to wire it up from one H4 connector.. harness should use some relay to run off battery directly?

Make sense?
etam 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: $FREE.99 - JDM driver side BD/BG headlight, broken Patrick Olsen Legacy Specific Parts 4 06-14-2008 05:56 PM
JDM or EDM BD/BG Headlights??? Need some opinions (with PICS) Mikeye Legacy Forum 35 04-22-2008 11:01 PM
Anyone need just a right/passenger side JDM BD/BG headlight? Patrick Olsen Legacy Forum 13 02-19-2006 09:35 AM
WTB: BG/BD JDM Projector Headlights OEM kotani Private 'Wanted' Classifieds 4 08-31-2004 12:52 PM
any electrical people wanna help with a JDM headlight swap? monovich Southern California Impreza Club Forum -- SCIC 10 07-02-2002 12:24 PM


All times are GMT -4. The time now is 02:13 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.