I figured out how to get high beams with one piecers

OhMyGodItsDanny · 12-08-02, 11:46 PM

My high output H4 harnesses came home today. After installing it my modified H4-->> H4H bulbs was super bright. I'm using 100/130 watts Naxos H4. I also found out that when you flip the high beam switch on it actually gives a negative output instead of a positive. But the h4 bulbs only have 3 wires ground, low/high. In order to get high beams you'll need a 12v 30 amp relay. (pepboys have them for 6.99 with all the wirings and plugs it's in the foglights section) Hook up everything as usual but ground the relay to the neg output of the 9006 high beams and hook up both + wires of the relay together. This will also activate the relay giving you high beams only when you flip the switch. I also have an extra relay switch going to the yellow fogs. Now I have my one piece working exactly the way it should. Best of all the lights output is so bright that I'm having second thoughts about getting HID.

Here's the layout of the relay .

connector 30 and 86 (positive) should both go to the battery
connector 85 (ground) should be connected to the ground wire coming from the original high beam.
connector 87 connects to high beam wires coming from the H4 connector. The high beam wire should be the single wire coming out from a seperate side away from the ground and low beam.

If one side is dimmer than the other you might want to buy another relay for the other side or else just get the high output harnesses, it comes with 2 relays one for highs and one for lows but you'll still need the extra relay for the highs to actually work. And u should have another relay for the fogs.

smoovie--smoov · 12-09-02, 12:03 AM

can you put pictures of your lights int he different stages? i can't see it for some reason. and you modified H4 bulbs is what your saying?

OhMyGodItsDanny · 12-09-02, 12:07 AM

yah H4 bulbs modified to fit the H4H housing of the JDM headlights..

You'll never see it if you don't have the actual relays in front of you. Unless u've done some work with those relays before. Those numbers and stuff are just a bunch of gibberish when u can't see exactly how the relay is..... Go here to see some diagrams but u won't be installing it that way it's just to give you an idea of which wires go to which.

imports_only1 · 12-09-02, 01:30 AM

Quote:

Originally posted by OhMyGodItsDanny
My high output H4 harnesses came home today. After installing it my modified H4-->> H4H bulbs was super bright. I'm using 100/130 watts Naxos H4. I also found out that when you flip the high beam switch on it actually gives a negative output instead of a positive. But the h4 bulbs only have 3 wires ground, low/high. In order to get high beams you'll need a 12v 30 amp relay. (pepboys have them for 6.99 with all the wirings and plugs it's in the foglights section) Hook up everything as usual but ground the relay to the neg output of the 9006 high beams and hook up both + wires of the relay together. This will also activate the relay giving you high beams only when you flip the switch. I also have an extra relay switch going to the yellow fogs. Now I have my one piece working exactly the way it should. Best of all the lights output is so bright that I'm having second thoughts about getting HID.

I don't quite understand what you're trying to describe here. You're using the relay for what purpose?....to make your 9005 high beam harness work with the H4?...and what do you mean by making your 1-piece headlight working the way it should be?.....

OhMyGodItsDanny · 12-09-02, 01:34 AM

A lot of the people I know with one piece headlights weren't able to get their high beams to work correctly. USDM lights are 9006/9005 JDM one pieces uses H4H which have the same connectors as the h4 bulbs. With the USDM headlights we had 4 wires, 2 neg, 2 pos which goes to the 9005 highs and 9006 lows. But the reason why the high beams never worked correctly is that the high beams in the 9005 is actually neg. polarity thus the positive is constant and the ground wire is the one that goes to the switch while the H4 bulbs have 4 wires. ground, highs and lows.

Darkstar · 12-09-02, 01:39 AM

Quote:

Originally posted by imports_only1

I don't quite understand what you're trying to describe here. You're using the relay for what purpose?....to make your 9005 high beam harness work with the H4?...and what do you mean by making your 1-piece headlight working the way it should be?.....

No.

A little known fact about the H4/H4H bulbs: they fuction as both the high beams and the low beams. The bulb itself has 2 filements inside it, and 3 pins on the back. 1 pin is the low beam (+), 1 pin is the high beam (+), and the last pin is a common ground use by the other low and high beams (-),

Looking straight down at the bulb...

(LOW)
----
| |
| |
(HIGH) (GROUND)

(Thats probably going to get mangled by vBulletin)

I'm working on a detailed diagram explaning how to EXACTLY wire up the H4H bulbs (using relays and such)... well its done right NOW but I'm also making a How-To for LEGENDtuner.com on HOW TO PROPERLY INSTAL/HOOK-UP THE JDM 1 PIECE HEADLIGHTS.

It should be done in a couple of weeks (but probably not until after X-Mas).

If you have any more questions PM me.

OhMyGodItsDanny · 12-09-02, 01:40 AM

Quote:

A little known fact about the H4/H4H bulbs: they fuction as both the high beams and the low beams. The bulb itself has 2 filements inside it, and 3 pins on the back. 1 pin is a common ground (-), 1 pin is the low beam (+), the last pin is the high beam (+).

Thank you

Darkstar · 12-09-02, 01:41 AM

Quote:

Originally posted by OhMyGodItsDanny
Thank you

People just get so confused about how to wire them up correctly... once you understand it its REALLY easy and you'll probably be hitting yourself in the head for days.

OhMyGodItsDanny · 12-09-02, 01:42 AM

Quote:

People just get so confused about how to wire them up correctly... once you understand it its REALLY easy and you'll probably be hitting yourself in the head for days.

That's exactly what I'm doing now...it's the neg. polarity that's screwing everyone up.

Darkstar · 12-09-02, 01:44 AM

Quote:

Originally posted by OhMyGodItsDanny
That's exactly what I'm doing now...it's the neg. polarity that's screwing everyone up.

Well theres really no "negative polarity" in the setup... the reason why you cant send power to both (+) is because it would basically light up BOTH filements, blowing the bulb.

You just have to understand that the (-) is common between the other two (+).

OhMyGodItsDanny: whats your email address? PM it to me.

imports_only1 · 12-09-02, 01:49 AM

why don't people just use the 9005 harness....cut it and re-wire it with a new harness that will fit into the foglight bulb and use that as the HIGH BEAM.......thus, when you flip on the highbeam.....your foglight is now your highbeam, yet the lowbeam is still on also.

WhiteLegend · 12-09-02, 02:09 AM

Quote:

Originally posted by imports_only1
why don't people just use the 9005 harness....cut it and re-wire it with a new harness that will fit into the foglight bulb and use that as the HIGH BEAM.......thus, when you flip on the highbeam.....your foglight is now your highbeam, yet the lowbeam is still on also.

Fog lights aims down on the ground, it won't function correctly as a highbeam.

joeman · 11-08-03, 06:17 PM

I guess this is a dead subject, but I just got some 1-piecers and was trying to figure out how to wire them when I discovered in the Haynes manual schematics that the headlight dimmer relay may have an extra (double) throw.
It seems that if you just hook the ground for your low beams to this extra connector on the dimmer relay.,It will break the ground to the lows when the highbeams come on. This would be the desired operation for the H4's.

I was also noticing that the stock headlights are NEGATIVELY switched as you all mentioned, meaning the lights are always hot. It looks like they have a common + lead and separate grounds to turn on the lights, so it's 2 - neg wires and 1+ on the lights, not the other way around.

I'm gonna try this out next weekend after my vacation trip, and I'll add a post to this if it works. This would only require modification of 1 wire, eliminating the expense and clutter of extra relays and wires. I will definately be using a relay for the fogs, though. I'm planning to get a JDM fog switch and wire it through the parking switch as well to avoid accidentally leaving them on. If I can find the neg wire to the park switch

What's with all this bassackward wiring anyway?

I may eventually add realys for the headlights to gain much brightness over stock. At least if this little mod works It will then be a direct hook up for the relays,(only 2 will be needed). Once the coil sides of the relays are setup to turn on/off at the right times, the headlights can be wired to them conventionally(positive) and not bassackward. If it all works out I'll post a diagram for future reference.

Later

Joe

12-08-02, 11:46 PM	#1 (permalink)
OhMyGodItsDanny Registered User Join Date: Jan 2002 Location: Bay Area Posts: 450 Car 1: See Profile iTrader: (0)	I figured out how to get high beams with one piecers My high output H4 harnesses came home today. After installing it my modified H4-->> H4H bulbs was super bright. I'm using 100/130 watts Naxos H4. I also found out that when you flip the high beam switch on it actually gives a negative output instead of a positive. But the h4 bulbs only have 3 wires ground, low/high. In order to get high beams you'll need a 12v 30 amp relay. (pepboys have them for 6.99 with all the wirings and plugs it's in the foglights section) Hook up everything as usual but ground the relay to the neg output of the 9006 high beams and hook up both + wires of the relay together. This will also activate the relay giving you high beams only when you flip the switch. I also have an extra relay switch going to the yellow fogs. Now I have my one piece working exactly the way it should. Best of all the lights output is so bright that I'm having second thoughts about getting HID. Here's the layout of the relay . connector 30 and 86 (positive) should both go to the battery connector 85 (ground) should be connected to the ground wire coming from the original high beam. connector 87 connects to high beam wires coming from the H4 connector. The high beam wire should be the single wire coming out from a seperate side away from the ground and low beam. If one side is dimmer than the other you might want to buy another relay for the other side or else just get the high output harnesses, it comes with 2 relays one for highs and one for lows but you'll still need the extra relay for the highs to actually work. And u should have another relay for the fogs.

12-09-02, 12:03 AM	#2 (permalink)
smoovie--smoov Sragh* P**mp, Bee**h! Join Date: Apr 2002 Location: new york Posts: 2,592 Car 1: 95 PrlWht LS Sedan iTrader: (0)	can you put pictures of your lights int he different stages? i can't see it for some reason. and you modified H4 bulbs is what your saying? __________________ http://store1.yimg.com/I/engrish-store_1814_98920.jpg Legends don't die, they get iller and transform to showrides. "Bang bang for big heaters, 100 dollar sneakers, two seaters, two meedas and a bundle of haze enough to last at least 14 days"

12-09-02, 01:49 AM	#11 (permalink)
imports_only1 Registered User Join Date: May 2002 Location: Mid-West Posts: 245 Car 1: '02 Acura RL w/ NAV iTrader: (0)	why don't people just use the 9005 harness....cut it and re-wire it with a new harness that will fit into the foglight bulb and use that as the HIGH BEAM.......thus, when you flip on the highbeam.....your foglight is now your highbeam, yet the lowbeam is still on also. __________________ MY HOMEPAGE

11-08-03, 06:17 PM	#13 (permalink)
joeman Registered User Join Date: May 2002 Location: Alexandria, VA Posts: 1,386 Car 1: 92 LS Sedan (SOLD) Car 2: 91 240sx 5spd Hatch Car 3: 99 VR4 iTrader: (0)	I guess this is a dead subject, but I just got some 1-piecers and was trying to figure out how to wire them when I discovered in the Haynes manual schematics that the headlight dimmer relay may have an extra (double) throw. It seems that if you just hook the ground for your low beams to this extra connector on the dimmer relay.,It will break the ground to the lows when the highbeams come on. This would be the desired operation for the H4's. I was also noticing that the stock headlights are NEGATIVELY switched as you all mentioned, meaning the lights are always hot. It looks like they have a common + lead and separate grounds to turn on the lights, so it's 2 - neg wires and 1+ on the lights, not the other way around. I'm gonna try this out next weekend after my vacation trip, and I'll add a post to this if it works. This would only require modification of 1 wire, eliminating the expense and clutter of extra relays and wires. I will definately be using a relay for the fogs, though. I'm planning to get a JDM fog switch and wire it through the parking switch as well to avoid accidentally leaving them on. If I can find the neg wire to the park switch What's with all this bassackward wiring anyway? I may eventually add realys for the headlights to gain much brightness over stock. At least if this little mod works It will then be a direct hook up for the relays,(only 2 will be needed). Once the coil sides of the relays are setup to turn on/off at the right times, the headlights can be wired to them conventionally(positive) and not bassackward. If it all works out I'll post a diagram for future reference. Later Joe __________________ 99 Mitsubishi 3000GT VR4... 1 of 263 produced TT/AWD/6 spd/ 5Zigen FN01RC, roller bearing SS, Passport SR1, HIDs, LEDs, custom berber mats, Alpine IVA-D300, MP3 changer, 2000 watts custom plexi & neon Alpine rack /2x Brahma 10's, Seas Lotus, SQL setup, 20% F1 Tint, Tein Flex, Maximal Adj C arms, Greddy BOV, 3SX poly mounts, Carbotech/Hawk/SS lines, DR-650 turbos, next... 19x10 RH J5 Pro

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12-09-02, 12:07 AM	#3 (permalink)
OhMyGodItsDanny Registered User Join Date: Jan 2002 Location: Bay Area Posts: 450 Car 1: See Profile iTrader: (0)	yah H4 bulbs modified to fit the H4H housing of the JDM headlights.. You'll never see it if you don't have the actual relays in front of you. Unless u've done some work with those relays before. Those numbers and stuff are just a bunch of gibberish when u can't see exactly how the relay is..... Go here to see some diagrams but u won't be installing it that way it's just to give you an idea of which wires go to which.

12-09-02, 01:34 AM	#5 (permalink)
OhMyGodItsDanny Registered User Join Date: Jan 2002 Location: Bay Area Posts: 450 Car 1: See Profile iTrader: (0)	A lot of the people I know with one piece headlights weren't able to get their high beams to work correctly. USDM lights are 9006/9005 JDM one pieces uses H4H which have the same connectors as the h4 bulbs. With the USDM headlights we had 4 wires, 2 neg, 2 pos which goes to the 9005 highs and 9006 lows. But the reason why the high beams never worked correctly is that the high beams in the 9005 is actually neg. polarity thus the positive is constant and the ground wire is the one that goes to the switch while the H4 bulbs have 4 wires. ground, highs and lows.

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