Subaru WRX Forum banner
21 - 38 of 38 Posts
Discussion starter · #21 ·
So what you're saying is...?

Driver side headlight:
1. High beam outside to red w/ blue stripe
2. High beam inside to red
3. Low beam black to red
4. Low beam green to yellow w/ red stripe

Passenger side headlight:
5. High beam outside to blue w/ white stripe
6. High beam inside to red
7. Low beam black to red
8. Low beam green to yellow w/ red stripe

This seems to contradict the Scoobymods directions. See below...

The headlight wires are color-coded differently on each side of the car. The connector for the turn signal plugs right in. Therefore, all you have to do is wire the high and low beams. The 9005 connector is for the high beams. Let's start with the passenger side. Wire the high beam positive (red wire) to the wire that is closer to the out side of the car when plugged into the headlight. Wire the Neg. (blue wire) to the other connector that is closer to the inside of the car. Also wire the blue wire to the low beam neg. (black wire) Then wire the low beam positive lead (yellow wire) to the low beam positive on the light (green wire). Tape up the connections. Now the driver's side. Wire the outside wire from the 9005 connector to the high beam positive lead (red wire). Inside wire goes to the shared negative (red with blue stripe). Shared negative also wires to the black on the low beam connector. And the low beam positive lead (yellow with red stripe) to the positive on the light (green wire). Tape up the connections. Replace the battery. Test the lights. Then bolt them into the stock locations. Replace the grille inserts. Replace the grille.

WIRING APPENDIX

Passenger side:
High Beam Positive is RED
Low Beam Positive is YELLOW W/ RED STRIPE
Shared Negative is BLUE W/ WHITE STRIPE

Drivers side:
High Beam Positive is RED
Low Beam Positive is YELLOW W/ RED STRIPE
Shared Negative is RED W/ BLUE STRIPE

I really appreciate the help that everyone is giving, but the $10 is still going to the first person who looks at the actual wiring of their non-HID JDM STi headlights, and posts the details in the format that I used at the top of this post.
 
That is the wiring diagram from the Subaru Impreza manual.

You can see the the red wire labeled #1 is the shared ground for both lights. The wire labeled #2 is the high beam posistive and the wire labeled #3 is the low beam positive. This is for both headlights although the wire color will be different per side.

Now this is what I used to wire up the STI HIDs which are polarity sensitive, meaning I had to have the positive connected to the positive and the ground connected to the ground. The halogen bulbs are not polarity sensitive meaning the bulb doesn't really have a positive and a negative. You can plug them in however you want as long as you use the correct 2 wires.

Im just trying to help out :), I dont really want the money. I had a bit of a problem finding info on wiring mine up until I found the PDF manual for the WRX. Then it all became clear.
 
Discussion starter · #23 ·
pityr said:
Heres a pic of the wiring schematic for the headlights.
Okay, I'm starting to get this, but things continue to contradict each other. One wire from each high and low beam will connect to a shared wire. Your post states that it would be the red wire on both sides of the car.

Left headlight:
1. High beam outside RL(2)
2. High beam inside R(1)
3. Low beam black R(1)
4. Low beam green YR(3)

Right headlight:
5. High beam outside LW(2)
6. High beam inside R(1)
7. Low beam black R(1)
8. Low beam green YR(3)

According to the diagram, the shared wire looks to be blue w/ white stripe on the right headlight, and red w/ blue stripe on the left headlight. That seems to go along with Scoobymods, and the switched grounds appear to coincide as well.

If you are correct about the halogen lights being polarity insensitive, I think I'm good to go at this point. On each headlight, I'm prepared to connect one wire from the low beam to yellow w/ red stripe, and one wire from the high beam to red. One wire from each beam of the driver's side headlight will go to red w/ blue stripe, and one wire from each beam of the passenger's side headlight will go to blue w/ white stripe.

I've got my fingers crossed, because I don't feel like replacing any fuses! ;)

Thanks for your help.
 
OK, Im smokin crack :)

You are correct about the wiring. I dont know what I was thinking saying the red was the common ground.

Let us know how it goes.
 
pityr said:
That is the wiring diagram from the Subaru Impreza manual.

You can see the the red wire labeled #1 is the shared ground for both lights. The wire labeled #2 is the high beam posistive and the wire labeled #3 is the low beam positive. This is for both headlights although the wire color will be different per side.

Now this is what I used to wire up the STI HIDs which are polarity sensitive, meaning I had to have the positive connected to the positive and the ground connected to the ground. The halogen bulbs are not polarity sensitive meaning the bulb doesn't really have a positive and a negative. You can plug them in however you want as long as you use the correct 2 wires.

man, i heard from a guy that:
"One thing that's different about the WRX is that instead of the 9007 connector haveing two +12v wires and a common ground, it has one +12v wire and two switched grounds.

I'm trying to hook up the JDM HIDs myself, and i don't wanna fry anything. so if i take the CC-B harness, and hook it to the factory harness, i'll have 3 wires hanging there. is it gonna be 2 +s and one ground, or 1+ and two switched grounds?

also, with the HIDs, the high beams have 2 wires. one pos, one neg? or both pos?

with the ballast here, i have one ground, and one power on it. should the ground be sent to the chassis of the car, and the power to whichever is the low beam + on your schematic there?

Pityr, if you could PM me your most basic "for dummies" explanations of the wires, i'd really appreciate it. thanks
 
Discussion starter · #28 ·
The UK300's are still installed in my car, which is not back from the shop yet. I've got crank sensor problems now. I suspect that they tell you to remove the battery in order to get closer to the headlight wiring.
 
RexMobbin' said:
man, i heard from a guy that:
"One thing that's different about the WRX is that instead of the 9007 connector haveing two +12v wires and a common ground, it has one +12v wire and two switched grounds.

I'm trying to hook up the JDM HIDs myself, and i don't wanna fry anything. so if i take the CC-B harness, and hook it to the factory harness, i'll have 3 wires hanging there. is it gonna be 2 +s and one ground, or 1+ and two switched grounds?
You will have 1 positive and 2 grounds.

RexMobbin' said:

also, with the HIDs, the high beams have 2 wires. one pos, one neg? or both pos?

You will have 1 pos and 1 neg. The highbeams use the same positive wire that they low beams do.

RexMobbin' said:

with the ballast here, i have one ground, and one power on it. should the ground be sent to the chassis of the car, and the power to whichever is the low beam + on your schematic there?
Just hook the neg wire from the ballast to the low beam neg and the ballast pos to the shared pos. It will be the middle wire on the 9007 connector.


RexMobbin' said:

Pityr, if you could PM me your most basic "for dummies" explanations of the wires, i'd really appreciate it. thanks
You just have to remember that there is 1 high beam ground, 1 low beam ground and 1 shared 12v positive. From the wiring schematic and previous posts wich one is wich will be fairly evident.

Another easy way to check which one is which is to take the high beam out of the housing along with the harness. Unplug one of your headlights and plug in the CC-B harness. Now, make sure that none of the wires are touching each other or anything on the car. Turn the lowbeam light on from inside the car. Touch one wire from the high beam harness to the center wire on the CC-B harness. This is the shared power. Then touch the other wire to one of the other wires. Which-ever one lights the light up will be the low beam. This leaves the other to be the high beam.

You dont need to worry about what wire is pos or neg on the high beam bulb, it is polarity insensitve and it doesn't matter. Wiring up the ballast you must plug the pos to the pos and the neg to the neg. The ballast is polarity sensitive and if you swap them you can damage the ballast.

If you want you can hit me up on AIM, my ID there is pityr0.
 
alright cool. Pityr, so with the ballast, as long as i get the pos from the ballast to the pos on the harness (the center wire), the ballast's neg can go to either ground, correct?

so i'm gonna have 2 wires coming off the center wire of the harness, and the high beam neg coming from one side, and the ballast neg coming from the other side, correct? does it matter which neg is connected to which bulb/ballast?

thanks for all the info on this thread. now all i need to do is gather up the testicular fortitude to crack these lights open and grind the masks...
 
pityr said:
Touch one wire from the high beam harness to the center wire on the CC-B harness. This is the shared power. Then touch the other wire to one of the other wires. Which-ever one lights the light up will be the low beam. This leaves the other to be the high beam.

is this statement backwards? if i was fooling with the high beam, then wouldn't the wire to light up the high beam be the HIGH beam neg, and vice versa?
 
RexMobbin' said:
is this statement backwards? if i was fooling with the high beam, then wouldn't the wire to light up the high beam be the HIGH beam neg, and vice versa?
Your just using the high beam bulb as a test light. You could use any 12V bulb for this but using the hig beam bulb is convenient since you already have it handy.

It will tell you which one is the low beam because you have turned on the low beam circuit. The other ground wire, the one that doesn't lights the bulb up, will be for the high beams.

As for the ballasts, You need to connect the ground to the low beam ground.

Remeber, on our headlights the shared power is always on. The ground wires are the ones that are disconnected until you turn on the lights. When you turn on the low beams the low beam ground is connected and the power is allowed to flow through the circuit, lighting the bulb. The same goes for the high beams.
 
Wow..

I have harnesses that would take care of all of this, using factory plugs for the 9007, H1, and 9005. No cutting, crimping, soldering or vampire tapping...

Email me for details.

Oh, and I've got levelling switches and harnesses that are completely plug and play - no crimping, cutting, or soldering required either. Allows replacement of light without having to rebuild/rewire light and harness.
 
pityr said:
Your just using the high beam bulb as a test light. You could use any 12V bulb for this but using the hig beam bulb is convenient since you already have it handy.

It will tell you which one is the low beam because you have turned on the low beam circuit. The other ground wire, the one that doesn't lights the bulb up, will be for the high beams.

duh:rolleyes: i wasn't thinking again. alright, i think i got this all straightened out FINALLY. THANK YOU ALL for the help.
Wagons, i think i'll pass on your harness because i'm gonna be splicing anyway. If i had no HIDs, i'd be all over it.
 
21 - 38 of 38 Posts