Wiring the 4th gen one piece headlights
04-09-2003, 10:36 PM
#1
Honda-Tech Member
Thread Starter
Join Date: Jan 2003
Location: san diego, ca, usa
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Wiring the 4th gen one piece headlights
Does anyone have the wiring diagrams or schematics to wire the 4th gen headlights using h4 plugs from a civic? i know that the plugs that come with the headlights have a positive and negative but the civic has two positive and one negative.
04-10-2003, 05:07 AM
#4
Member
Join Date: Jul 2002
Posts: 1,190
Likes: 0
Received 0 Likes
on
0 Posts
Re: Wiring the 4th gen one piece headlights (Elkins911)
that would make the h4 high and low be on at the same time? you dont use the high beam of the h4, the high beam is the h1. the ones you got have 2 wires because thats how it is supposed to be wired.
04-10-2003, 05:35 AM
#5
Join Date: Nov 2002
Location: ATL, GA, usa
Posts: 66
Likes: 0
Received 0 Likes
on
0 Posts
Re: Wiring the 4th gen one piece headlights (Elkins911)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Elkins911 »</TD></TR><TR><TD CLASS="quote">wire both reds together 
</TD></TR></TABLE>
You probably would not want to do that!
by "reds" i am assuming you are talking about both positives in the H4.
You only want ONE filiment to be on in the H4 bulb. Two cannot be on at the same time or else you risk blowing the bulbs, or overheating them to a point that your housing will melt.
H4 bulbs were created to have the function of LOW beams and HIGH beams. JDM headlight system is made to ONLY use LOW beam from the H4, while using H1 as HIGH beam. If you wired the wrong filiment (high beam filiment) in the H4 bulb, it will not have good lighting from the JDM housing since they didn't build the projects for that beam.
Here is the correct way to wire up your head light system exactly to the JDM preludes....
Hold your H4 bulb, with the prongs facing you. It should look like this...
|_|
The left prong is Positive for high beam filiment, bottom prong is positive for low beam filiment, and the right prong is for GROUND.
Only wire up the Ground prong to ground, and bottom prong to positive low beam wire from the wiring harness of the USDM.
The left prong will be left unwired since it will never be used.
The H1 bulbs will wire up to the highbeam wiring from your original USDM ground/positive wire. They should function just like USDM headlight system.
The accord JDM headlight system is wired the same way, H4 high beam is not used since they have the H1 for that.
</TD></TR></TABLE>You probably would not want to do that!
by "reds" i am assuming you are talking about both positives in the H4.
You only want ONE filiment to be on in the H4 bulb. Two cannot be on at the same time or else you risk blowing the bulbs, or overheating them to a point that your housing will melt.
H4 bulbs were created to have the function of LOW beams and HIGH beams. JDM headlight system is made to ONLY use LOW beam from the H4, while using H1 as HIGH beam. If you wired the wrong filiment (high beam filiment) in the H4 bulb, it will not have good lighting from the JDM housing since they didn't build the projects for that beam.
Here is the correct way to wire up your head light system exactly to the JDM preludes....
Hold your H4 bulb, with the prongs facing you. It should look like this...
|_|
The left prong is Positive for high beam filiment, bottom prong is positive for low beam filiment, and the right prong is for GROUND.
Only wire up the Ground prong to ground, and bottom prong to positive low beam wire from the wiring harness of the USDM.
The left prong will be left unwired since it will never be used.
The H1 bulbs will wire up to the highbeam wiring from your original USDM ground/positive wire. They should function just like USDM headlight system.
The accord JDM headlight system is wired the same way, H4 high beam is not used since they have the H1 for that.
Thread
Thread Starter
Forum
Replies
Last Post
