Welcome to the North American Subaru Impreza Owners Club Thursday July 31, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Alaskan Impreza Club
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 Chapters > Alaskan Impreza Club Forum -- AKIC

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 10-19-2009, 12:21 AM   #1
Turk84
Scooby Newbie
 
Member#: 90696
Join Date: Jul 2005
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2005 WRX Wagon
Silver

Default Aux wiring help needed

Hey fella's, been a while...

I need some help. I'm trying to wire in some PIAA 520's on my wagon and want to have them turn on and off with the high beams. Strangely enough the wires going into the high beams are hot all the time. I'm not to savvy on this stuff so a quick job turned into a head scratcher.

How can I get this to work so my wife doesn't have to hit to switches to keep from blinding oncoming traffic?

Thanks,
~Turk
Turk84 is offline   Reply With Quote
Old 10-19-2009, 12:29 AM   #2
retrac
Scooby Specialist
 
Member#: 217208
Join Date: Jul 2009
Chapter/Region: AKIC
Location: Alaska
Vehicle:
996 Porsche 911
Seal Gray

Default

Wire both the switch hot and switch ground from the relay to the constant headlight 12v and the ground to the highbeam ground, respectively. This is because headlights are ground switched versus hot switched so there isn't a delay between lights when switching modes.
retrac is offline   Reply With Quote
Old 10-19-2009, 01:06 AM   #3
Turk84
Scooby Newbie
 
Member#: 90696
Join Date: Jul 2005
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2005 WRX Wagon
Silver

Default

OK, I'm gong to think this through out-loud, so to speak.


I took the high beam light out of it's connection... When I stuck the tester in the connection one side was hot constantly. The other side would go dead when I would turn the high beams on.

So, on the PIAA wiring harness, out of the relay, there's the switch power wire and the black relay ground. I'm guessing that's the switch ground... Anyway, you're saying I wire the switch power into the wire that has constant power and the relay ground into the wire that goes out when I turn the high beams on?
Turk84 is offline   Reply With Quote
Old 10-19-2009, 01:39 AM   #4
retrac
Scooby Specialist
 
Member#: 217208
Join Date: Jul 2009
Chapter/Region: AKIC
Location: Alaska
Vehicle:
996 Porsche 911
Seal Gray

Default

Almost. The hot side is right, but you want the ground that is LIVE when the highs come on.
retrac is offline   Reply With Quote
Old 10-19-2009, 02:28 AM   #5
Turk84
Scooby Newbie
 
Member#: 90696
Join Date: Jul 2005
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2005 WRX Wagon
Silver

Default

I'm confused as all hell now... If I wire the switch power to the wire on the high beams thats hot constantly the PIAA's won't go off when I switch back over to low beam.
Turk84 is offline   Reply With Quote
Old 10-19-2009, 03:13 AM   #6
QwikEVO
Scooby Specialist
 
Member#: 44172
Join Date: Sep 2003
Chapter/Region: AKIC
Location: Eagle River, AK
Vehicle:
2003 Lancer Evo 8
Plasti-Dip is for TOOLS

Default

Man, I think I've found my third job.
QwikEVO is offline   Reply With Quote
Old 10-19-2009, 03:16 AM   #7
kbeefy
Scooby Specialist
 
Member#: 197417
Join Date: Dec 2008
Chapter/Region: AKIC
Location: alaska
Vehicle:
no more subaru
mostly dirty

Default

I didn't follow either.

What I could have illustrated in 30 seconds with a pencil, I've now wasted 10 minutes getting onto the computer. Should have drawn it out and taken a dang picture.

This will do what you want it to.




I don't remember terminal numbers for relays, 42, 43, 86, 87 seem to come to mind but hopefully the pic will help. Might be a good idea to throw a fuse inline on the+12v from battery wire.
In my very crude diagram, it won't matter where you get the +12v (splice main power and coil power together so simplify and save wire (+12v and bat +12v)). I'd run a wire from the battery (or whatever voltage dispersion device you choose to use) to the relay (with a fuse, of course. 20amps sounds reasonable)

The switch is a switch you install on the dash or wherever, the ground (-12v) is any good chassis ground that references the battery. You don't even need the switch if you don't care if the lights are always on when the highs are on. Thats how my truck was wired before my headlight upgrade.

Last edited by kbeefy; 10-19-2009 at 03:23 AM.
kbeefy is offline   Reply With Quote
Old 10-19-2009, 12:29 PM   #8
kbeefy
Scooby Specialist
 
Member#: 197417
Join Date: Dec 2008
Chapter/Region: AKIC
Location: alaska
Vehicle:
no more subaru
mostly dirty

Default

Quote:
Originally Posted by kbeefy View Post
You don't even need the switch if you don't care if the lights are always on when the highs are on. Thats how my truck was wired before my headlight upgrade.

kbeefy is offline   Reply With Quote
Old 10-19-2009, 06:39 PM   #9
aleutdude
Scooby Specialist
 
Member#: 129089
Join Date: Oct 2006
Chapter/Region: AKIC
Location: Anchorage,Alaska
Vehicle:
06 Impreza2.5Bug-i
OBP

Default

I have my Hella 500s wired up to turn on with my highbeams via relay. If you haven't figured it out lemme know and I can probably swing by and help you out.
aleutdude is offline   Reply With Quote
Old 10-19-2009, 03:19 AM   #10
QwikEVO
Scooby Specialist
 
Member#: 44172
Join Date: Sep 2003
Chapter/Region: AKIC
Location: Eagle River, AK
Vehicle:
2003 Lancer Evo 8
Plasti-Dip is for TOOLS

Default

I think his thing is he wants his lights to come on with the aid of the headlight switch. He doesn't want an additional switch.
QwikEVO 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
05 STi Aux wiring help needed. WhiteKnightSTi Electrical & Lighting 3 10-19-2009 12:41 AM
Hella AUX. Wiring help (I have done a search) theicewall Electrical & Lighting 17 12-30-2004 09:41 PM
Wiring help needed sovereignmk1 Legacy Forum 10 10-08-2002 10:02 PM
Tach wiring help needed Rovah New England Impreza Club Forum -- NESIC 2 08-07-2002 01:35 PM
Wiring help needed Fred Zaplitny Car Audio, Video & Security 0 01-09-2002 09:22 AM


All times are GMT -4. The time now is 07:46 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.