another JDM headlight question... - Honda Prelude Forum

prelude2005 · 08-31-2002, 07:24 PM

and yes i have check the FAQ, and search option

anyway, all I want to know is, where do I pick up the harness to change to H1 and H4. I want it set up like the USDM (highbeam/lowbeam). Any online shops for cheap??

Also. What do I exactly do? cut the 9006 and 9005 harness splice the wires and solder the H1 and H4 ones on? easy as that?

...im pumped, ima get some JDMs next check, and my OEM fogs are coming in from P2W

brendon2k · 08-31-2002, 08:26 PM

Yes I believe that is all you need to do. You need to extend the wires from the high beams because high/low are together and as far as how to get the h1 foglights to work is up to you. You could just add in all new wiring and put a switch in your car.

prelude2005 · 08-31-2002, 11:29 PM

so where to buy?

marshdoggg · 09-01-2002, 01:48 AM

Quote:

Originally posted by prelude2005
and yes i have check the FAQ, and search option

anyway, all I want to know is, where do I pick up the harness to change to H1 and H4. I want it set up like the USDM (highbeam/lowbeam). Any online shops for cheap??

Also. What do I exactly do? cut the 9006 and 9005 harness splice the wires and solder the H1 and H4 ones on? easy as that?

...im pumped, ima get some JDMs next check, and my OEM fogs are coming in from P2W

its as easy as that, dont let anyone tell ya different!
marsh

Si4WS · 09-01-2002, 03:59 PM

Here, this is the way I did it, very easy, no problems. Just get the harness at Napa autoparts.
JDM wiring----easy

prelude2005 · 09-01-2002, 04:10 PM

so basically on that set up corey, BOTH H1 and H4 bulbs are on, but when high its on, it just activates the second filment on the H4???
If i read it correctly.

So, any auto shop should have these H1, H4 harnesses?

Si4WS · 09-02-2002, 11:38 AM

prelude2005,
Well the way it works with that setup is:

Low beam: H4 or outside light only.

High beams: 2nd filament activated in the outside or H4 bulb and the H1 or inside bulb is activated. Very bright

U should be able to find the H4 harness most anywhere for less the $5 each. Now I have heard of people having problems finding this though.

prelude2005 · 09-02-2002, 02:47 PM

Quote:

Originally posted by Si4WS
prelude2005,
Well the way it works with that setup is:

Low beam: H4 or outside light only.

High beams: 2nd filament activated in the outside or H4 bulb and the H1 or inside bulb is activated. Very bright

U should be able to find the H4 harness most anywhere for less the $5 each. Now I have heard of people having problems finding this though.

you know any online shops that sell the harnesses?

Zimmlude · 09-03-2002, 01:03 AM

The only thing wrong with wiring it like that is that the H4 bulbs were never designed to have both filiments on at the same time. running the low a high beam filiments at the same time will heat the bulb up increadably and may cause it to burst. If you want to do it right you will need to rig up a relay. This web site tells you all about it: http://www.geocities.com/SP33DD3MON666/jdmlights.html

Good luck,

Later

Satan_SRV · 09-03-2002, 07:31 AM

Zimmlude is right. You need to use a relay to make it work properly. You need a 5 pin relay it's that simple.

Low Beam lead -> Relay Power In
High Beam Lead -> Relay Switching Lead In
Low Beam Ground -> Relay Ground
Relay Power Out 1 -> H4 Low Beam
Relay Power Out 2 -> H4 High Beam
High Beam Ground -> H4 Ground

The first 5 connect to the relay pins, and the last one goes right to the bulb. I was trying to do something the the underhood fuse box but I've given up due to laziness.

You can add a fog switch by just tapping off the high beams leads/grounds...

H4 harnesses seemed easy to get...they were just sitting there at canadian tire (like a pep boys? Auto Parts and stuff). Cost me $3 canadian....

prelude2005 · 09-03-2002, 04:42 PM

thanks for your help, you guys rock....

one LAST question.....stock bolts will fit? no need for extra nuts, bolts etc?

Si4WS · 09-03-2002, 06:52 PM

Quote:

Originally posted by Zimmlude
The only thing wrong with wiring it like that is that the H4 bulbs were never designed to have both filiments on at the same time. running the low a high beam filiments at the same time will heat the bulb up increadably and may cause it to burst. If you want to do it right you will need to rig up a relay. This web site tells you all about it: http://www.geocities.com/SP33DD3MON666/jdmlights.html

Good luck,

Later

I didn't know that, I have not had any problems yet though, I will post if they blow up or some other problem pops up.

My brights are sooooo bright.

Satan_SRV · 09-03-2002, 10:03 PM

Quote:

Originally posted by Si4WS

I didn't know that, I have not had any problems yet though, I will post if they blow up or some other problem pops up.

My brights are sooooo bright.

It will eventually...mine just burnt out...but do you want to risk exploding the bulb or something?

Anyways Prelude2005....bolts are all the same.

A suggestion: try to re route the wiring for the side lights through the frame...that's what I did and I find those bulbs very easy to change now...

prelude2005 · 09-04-2002, 06:40 AM

its mine muhahaha

http://cgi.ebay.com/ebaymotors/ws/eB...tem=1855394199

euforik · 09-04-2002, 09:31 AM

Quote:

Originally posted by Zimmlude
The only thing wrong with wiring it like that is that the H4 bulbs were never designed to have both filiments on at the same time. running the low a high beam filiments at the same time will heat the bulb up increadably and may cause it to burst. If you want to do it right you will need to rig up a relay

i don't know how true this statement is, because i have had my h4 bulbs wired where the high and low beam filiments are on at the same time during the high beam position for over two years now without a problem. never had a bulb burn out on me yet. ::knocks on wood::

Satan_SRV · 09-04-2002, 12:39 PM

Quote:

Originally posted by euforik

i don't know how true this statement is, because i have had my h4 bulbs wired where the high and low beam filiments are on at the same time during the high beam position for over two years now without a problem. never had a bulb burn out on me yet. ::knocks on wood::

It's true, mine burned out...but it's your call really...

prelude2005 · 09-04-2002, 05:06 PM

Is the H1 the same as 9007? or something? Im have a VERY hard time finding harnesses, no local shops have it, if anyone can get me some, from some where near you, I will pay full price plus shipping.......

can anyone please pick me up some harnesses locally around you? good quality ones preferably

Zimmlude · 09-04-2002, 05:21 PM

The H1 is nothing like the 9007. It is basically two spade connectors about a inch apart. You could just use two crimp-on connectors for the H1's. The best would be to get the H1 harnesses though. Have you tried a junkyard? I know some cars came stock with H1's.

Later

ancient · 09-04-2002, 06:16 PM

This may be considered highly newb but I have to ask....

The difference between H1 and H4 bulbs is what between the 9005 and 9006s?

What are the H Bulbs for compaired to the 9005 9006s..... I know the 9005 and 9006s are stock in our cars..... USDM that is...

Is it cause the JDM housing only fits the H1 and H4 bulbs?

genlude · 09-04-2002, 09:52 PM

Quote:

Originally posted by ancient
This may be considered highly newb but I have to ask....

The difference between H1 and H4 bulbs is what between the 9005 and 9006s?

What are the H Bulbs for compaired to the 9005 9006s..... I know the 9005 and 9006s are stock in our cars..... USDM that is...

Is it cause the JDM housing only fits the H1 and H4 bulbs?

Let attempt to answer this.......

Jdm housing will only accept H1 and H4 bulbs and the H4 bulbs is dual filament compared to the 9005 and 9006 which are single filament.