DIY: OEM JDM HID Headlight Conversion

[govtec]

Hi All,

Look what I got early for Christmas this year. Yup, just received my order from Buyee for a pair of JDM HID Headlight from Japan. I actually got 2 sets (ordered the post-facelift by accident). I will be using the pre-facelight for my wife's 07 Hatch and plan on selling the post-facelift once I'm done with the DIY write-up.

Now here comes the hard part. I'll need everyone's input to make this project a success and everyone else will have a chance to do the conversion. Specifically, I need part numbers that I need to order for the pigtails without cutting any wires coming from the car.

Enviri - Feel free to chime in since you've already completed this project in another post. Do you mind sharing the male/female pigtail plugs that I need to purchase?

Thank you all! I've done this JDM HID conversion on my 09 Rav4 and it makes a world of difference driving at night!

[enviri]

http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/IMG_1027.jpg

http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/IMG_1041.jpg

[enviri]

hmm it looks like you already got the ballasts included (i hate you for that)

90980-10942(x2) is the female 4 pin connector you need.
(luckily it seems someone is selling one with wires already put in place, https://www.ebay.com/itm/90980-10942-Toyota-Connector-Harness-Repair-Kit/351993047230)

then you need to ebay a quality h4 female pigtail connector, and a 194/t10 parking light extension cable.

then of course, a D4R bulb (NOT AN D4S, D4C may work.) and H7 for the super useless highbeam.

D4R in america is used in 06-09 prius, and 08-10 avalons.
GARAX and TOM's makes great bulbs outside the traditional OEM color range, that wont destroy the wallet btw...

CTScott helped alot on details of connecting the wiring, and he added an extra ground somewhere, which i forget.

[Whiplash]

I would like this, depending on total price.

[govtec]

Thanks enviri, I'll get the ordering started. My headlight pretty much came with everything including all the bulbs and ballasts. Am I still good to use the D2R bulb? It says on the side of the marking D2R 35W. The highbeams were a real pain to take out because the retainer clip was on pretty tight. Luckily I won't be changing this that often.

Also, if you take a look at img1141, it shows the the top half of the HID projector beam inside the case. Unlike my Rav4, which I had to reverse the metal plate that was inside the projector casing, it appears that with the Yaris there is no metal plate on the inside and you can adjust the beam pattern from left hand side to right hand side by just using a screw driver.

Enviri - On the last image, can you get met started on which of the 4 wires are connected to the H4 connector?

Thanks

[enviri]

if it already has d2r then first check the part number of the ballast, and stay d2r.

wiring i have to get back to you.
im pretty sure green is the parking light, and black is common ground. our headlight has a switched positive setup (or is it switched negative?), i gotta pop the hood and check it out once weather permits.

[ezhacker1]

H4 Connector is switched ground. Low and Hi has their own ground pin.

Based on Enviri connector photo and pin orientations im guessing

Red Low Beam
Black Hi Beam
Green Parking
Black 12v.

[fredovvti]

How much you pay for shipping?

[govtec]

I think $110

[govtec]

Now that I'm catching a break from the snow and all my harnesses have finally arrived. I'm hoping to install this soon. Enviri - Any luck with getting the wire connections from your car? Just need some wire identification so I can solder the 4 to 3 prong harness. Also, I'm not sure where the 194/t10 parking light extension cable goes because I don't see any plug holes left for me to put this in the headlight. I took the little light bulb out in the picture and tried connecting the 194/t10 extension cable but that plug was fine with without any extension cable.

Thanks

[enviri]

I, too am at the mercy of the weather. Yesterday was perfect but i read this post near midnight lol. Today is warm but gettin some monsoon rains...

Anyway heres a quicky
http://i50.photobucket.com/albums/f332/xienji/DSC_0022.jpg
https://youtu.be/F7PloYRGlrE

Parking light ground i think is connected to chassis. I need a good calm day to rip apart my headlight!

[enviri]

Also you might start poppin fuaes on headlight use like i did. I went against ctscott's recommendation and went +5a... Although i think +2.5a is enough, maybe?

[govtec]

Thanks dude! I'll give it a shot when the weather warms up again. I don't want to mess with the fuses or anything else because I'm not a very technical guy and don't want to burn anything.

[enviri]

once you're connected and got it working, the fuses will pop itself lol. It wasnt instant, but some days, off it goes. its the low beam fuse, obviously. i havent changed fuses since i upped the amps years back.

[govtec]

I have the same problem with my Rav4 JDM HID Conversion. I heard this will prevent the fuse from popping...https://www.theretrofitsource.com/hd-relay-9006.html

[enviri]

i forgot i made a video of the light output

https://youtu.be/8_LdgAcEkfc

[govtec]

Wow, what a difference between the HID and halogen lights.

Looks like we'll have warm weather for the next 2 weeks. Let me know if you can get one of the headlight apart and shoot the vids for each connecting harness. I only got a few of connecting wires from the first youtube video you put up because of the camera angle.

Thanks

[enviri]

Maybe tommorow!

[enviri]

https://youtu.be/G1oSPgxv1zo should take care of everything,

https://youtu.be/WwKyBosf05s is wiring to the car.

[enviri]

http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0035.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0032.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0031.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0030.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0028.jpg

[govtec]

Great, thanks dude! I see you got the auto-leveler...I'm not planning on using that.

[enviri]

Great, thanks dude! I see you got the auto-leveler...I'm not planning on using that.

i didnt use it either. i'd have to replace one of the switches for one with auto leveling, then route wiring to that leveler thing...yeah dont need it. It's rusting away at a good pace :thumbsup:

[David C]

So what's the approximate cost to do the conversion ?

[enviri]

depends how lucky you are on getting a complete headlight unit, and how patient you are on shipping. the headlights are 30-100 USD on jp auctions. the necessary wiring is a good 50 or so. Assuming that the headlights came with ballast and the bulbs are in there, that's your bare minimum cost+shipping to your home. (ems shipping for these are about 150 to east coast usa)

[David C]

Ah, yeah it's a little bit of knowing what you're doing and buying project. Not sure I am committed enough to go that route.

What I really feel that is missing on the Yaris light output is the medium to close range, it's like the beam pattern doesn't light down the road enough and it's not relaxing at times especially in dark rain or poorly lighted roads structures like overpass and access ramps. I really like how much the LED fog light setup of IllusionX fills up the lower parts of the road, I'm thinking I may very well just slap an LED bar in the front grill and carefully select and aim it so it doesn't blind anyone.

[enviri]

fog lights help immensely in that range. I have the morimoto XB LED fog lights, never looked back.

[David C]

What do you think of these ? I'm not familiar with what's real and what's gimmick in terms of projectors and lights, but I'm thinking it could be nice if its a real HID projector setup ?

https://m.ebay.com/itm/YARIS-XP90-MK2-08-11-FACELIFT-Hatchback-CCFL-Pro-Headlight-Black-for-TOYOTA-LHD/112525893808?

59368
59369

[fredovvti]

Hi,

Anyone can help me, I buy this headlights but can make work. I see the pictures make the right connect, but went a put it in the car, they dont work. Please you can but a clear instructions to how connect the extra ground?

Thank you!

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[fredovvti]

Also you might start poppin fuaes on headlight use like i did. I went against ctscott's recommendation and went +5a... Although i think +2.5a is enough, maybe?Where you change the fuses?

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[enviri]

fuse box in engine bay
http://www.autogenius.info/wp-content/uploads/2016/09/Toyota-yaris-sedan-mk2-engine-compartment-2007.jpg

#17-18

[enviri]

Please you can but a clear instructions to how connect the extra ground?

the extra ground is needed for the parking light (little bulb), so an extra wire goes from the ground for that parking light to the chassis.

[fredovvti]

fuse box in engine bay
http://www.autogenius.info/wp-content/uploads/2016/09/Toyota-yaris-sedan-mk2-engine-compartment-2007.jpg

#17-18So, does 2 fuses arw #10. I have to go up to #30 both?.

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[enviri]

12.5 or 15. I went with 15. CTScott recommended against it for fire hazard, but its the only way for my headlights to stay working...and its been years since i changed it with no issue. no flicker, no premature blown anything.

[govtec]

So, does 2 fuses arw #10. I have to go up to #30 both?.

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I wouldn't do that, there is a reason the fuse is at 10amp. You have to ground it properly. Did you try enviri's suggestion? I didn't get a chance to install my headlights yet because of the weather and school.

[govtec]

Ah, yeah it's a little bit of knowing what you're doing and buying project. Not sure I am committed enough to go that route.

What I really feel that is missing on the Yaris light output is the medium to close range, it's like the beam pattern doesn't light down the road enough and it's not relaxing at times especially in dark rain or poorly lighted roads structures like overpass and access ramps. I really like how much the LED fog light setup of IllusionX fills up the lower parts of the road, I'm thinking I may very well just slap an LED bar in the front grill and carefully select and aim it so it doesn't blind anyone.

What year is your car? I accidentally ordered a pair of post facelift JDM HID headlights that I will sell soon here in the states once the weather warms up and I install the pre facelift headlight in my car. The only thing that is missing is the ballast which you can get off of ebay easily. I can definitely sell it to you if you want to wait little bit.

[enviri]

The only thing that is missing is the ballast which you can get off of ebay easily. I can definitely sell it to you if you want to wait little bit.

USDM lexus ballasts work well :thumbsup:

[fredovvti]

Thank you guys for the help, i will imput my updates.

Thanks very much!!

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[David C]

What year is your car? I accidentally ordered a pair of post facelift JDM HID headlights that I will sell soon here in the states once the weather warms up and I install the pre facelift headlight in my car. The only thing that is missing is the ballast which you can get off of ebay easily. I can definitely sell it to you if you want to wait little bit.



Mines a 2007 HB.

I installed LED H4 bulbs and Morimoto XB fog lights two weeks ago and now I'm doing a lot better on lighting. Thanks for the offer tho.

[fredovvti]

USDM lexus ballasts work well [emoji106]What model that you use? I buy a pair but it came with a diferent conector.

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[enviri]

http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/IMG_1009.jpg

ground cable not needed.

[fredovvti]

http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/IMG_1009.jpg

ground cable not needed.Thats the one I order, but seen your videos the cover of the ballast from my headlights are much bigger. I put this one but they are small.

In the pictures, that is the ballast that came in the headlight.https://uploads.tapatalk-cdn.com/20180402/66e5e8ac78aae389e59fab95ca3ed179.jpghttps://uploads.tapatalk-cdn.com/20180402/a2ac335ee510f0b91d15d2f6c51e6e46.jpg

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[enviri]

if that's the case you might have to stick with those or maybe look into whatever the prius used in 2006.

85967-50020 is used in
Japan 08/2000-07/2006 TOYOTA CELSIOR UCF3* 81-01: HEADLAMP
N. America 08/2000-07/2006 LEXUS LS430 UCF30 81-01: HEADLAMP

[fredovvti]

At last, my headlights are working. Here are photos of the outpug. The firts are lows, the second are the highs. I tell you, is the best output I see.https://uploads.tapatalk-cdn.com/20180409/dbe136a3fd27fb90061a3c45a617d6d1.jpghttps://uploads.tapatalk-cdn.com/20180409/8ff42f6cf7053be6f819f6ba82cd86c3.jpg

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[enviri]

welcome to the jdm club :P

[fredovvti]

Thank you all guys for your help!!!

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[govtec]

Hey Enviri,

I just got to installing my JDM headlights today...After taking the passenger side headlight out, I find that I ordered the wrong female 3 prong plug! Should have been a male 3 prong plug! The other thing I realized is that after accounting for all of the harnesses, I'm left with 2 unplugged harnesses and I remember your vids only had the brown harness that was left unplugged. So then I realized that I'm missing the parking light plug altogether. This leads me to 3 questions I have for you...

1) What is the part number that I need to order that will plug into the parking light harness on the car side?...From your video's I see that it is a 2 prong male connector.

2) Why do I need the extension cable again? I don't see where it is needed as all of the wires and harnesses are tucked into the big black HID cap housing.

3) Can you confirm the exact ground wire that I'm tapping into in post # 20 (http://www.yarisworld.com/forums/showpost.php?p=808241&postcount=20) in the last picture?...Is it the HID wire, parking light wire or high beam?

Thanks

https://drive.google.com/open?id=1_jrqPGqm8FHAzEZGKZgNcYIvWZ-ZvY4d

https://drive.google.com/open?id=17XvUJXEg_f-7F3oyxZOPSm9RR9qe6-80

https://drive.google.com/open?id=1TmPU00Hcs_CVIY8-ickvrmZNCh53sQ02

[enviri]

lol woops.

1) ebay or amazon. (https://www.amazon.com/HITSAN-Adapters-Wiring-Harness-Retrofit/dp/B07C915BQ8/ref=sr_1_2?s=automotive&ie=UTF8&qid=1525697287&sr=1-2&keywords=t10+194+male)
2) extension? i dont remember? lol
3) ground is definately parking light.

2 unused plugs...i have to check again, only unused plugs i have are parking light plug on each side if i remember right...which i believe is that brown connector on your third pic.

[govtec]

lol woops.

1) ebay or amazon. (https://www.amazon.com/HITSAN-Adapters-Wiring-Harness-Retrofit/dp/B07C915BQ8/ref=sr_1_2?s=automotive&ie=UTF8&qid=1525697287&sr=1-2&keywords=t10+194+male)
2) extension? i dont remember? lol
3) ground is definately parking light.

2 unused plugs...i have to check again, only unused plugs i have are parking light plug on each side if i remember right...which i believe is that brown connector on your third pic.

1) I don't think we're talking the same thing. Look at pic # 4 of post # 20 (http://www.yarisworld.com/forums/showpost.php?p=808241&postcount=20). The t10/194 plug does not look anything like pic # 4 which has Toyota specific plug housing.

[enviri]

https://snag.gy/q18gyZ.jpg

should be parking light connection, connected to that free brown female plug. the 194/t10 male connects to that.

[govtec]

Your video's showed the brown one was unplugged. I'm looking for this 2 prong male grey plug that I see was spliced to the 4 prong plug as well as the the ground wire.

See pic of what I'm referring to...

[enviri]

its the other one of the 2 t10 connectors for the stock headlight...the side marker light.

[govtec]

Pic # 1 below show's how the 2 ends of my 194/t10 parking light extension cable that I ordered. Is this the right one?

Pic # 2 shows the 2 plugs that I have left to use and none of them will fit 194/t10 cable from pic # 1.

[enviri]

yeah both of those unused plugs are for parklight bulbs. i used the one to the right, the brown one i use as a hood lamp.

http://i50.photobucket.com/albums/f332/xienji/Mobile%20Uploads/518401ec-9ca7-452b-9fc9-1049dee4b34a.jpg

i assume you still have this? it may still be connected to your headlight, next to your winker bulb.
http://i50.photobucket.com/albums/f332/xienji/Mobile%20Uploads/DSC_0038_1.jpg

http://i50.photobucket.com/albums/f332/xienji/Mobile%20Uploads/DSC_0039_1.jpg

[govtec]

I see what you did. I'll have to wait until the weekend since the headlights are at my parents house.

Do I cut-off the other end of 3 so I can splice the wires to the 4 prong and parking light? Thanks

[enviri]

splice away.

[govtec]

Enviri - Need your help urgently while I'm doing the installation...So far I've installed one side of the JDM HID lights on the passenger side and after I've plugged everything in, the parking light is constantly on without the keys in the ignition. Even after I start the car, the low beam and the rest of the lights do not come on in the JDM HID headlights while my US headlight on the driver side functions normally. What am I missing?

[govtec]

On post # 31 (http://www.yarisworld.com/forums/showpost.php?p=811060&postcount=31) you had mentioned something about an extra ground going from the green/black parking light wire to the chassis...After I spliced the extension parking light wire, I connected one of the wires to the black parking light wire in the headlight housing. Is this what you meant by post # 31? Or is there another step I'm missing. I'll get to my parents house later this afternoon and I'll check all the wires and plugs again just to make sure I didn't miss anything.

Thanks

[govtec]

I'm ordering another pair of T10 and H4 plugs because the ones I got are of bad quality. I also blew out the tail light and passenger low beam fuse.

[enviri]

something tells me that there is definately a crossed wire somewhere, grounded to the chassis or not. CTScott recommended we grounded the parking light to chassis for safety reasons.

[liger_zero9999]

Following this, currently have a set of headlights & ballasts on their way from Japan. This thread has been a huge help in understanding what the hell i need to do to make this work :)

[govtec]

Update...I finally received the relay wiring harness that fredovvti had suggested I use to solve the power issue for the JDM headlight. I ordered it from Amazon...https://www.amazon.com/LIGHTING-Ceramic-Headlight-Headlamp-Harness/dp/B00MSC02LK/ref=redir_mobile_desktop?_encoding=UTF8&psc=1&ref=yo_pop_mb_pd_title. After I finished with the installation and drove home from my parents house, the low beam (hid bulbs) would flicker when I start the ignition and the switch stalk is turned off and the blue high beam CEL would come on the dashboard. The light would continue to flicker when I turn on the parking light with the first turn on the light switch stalk. When I turn on the low beam, the flickering stops and I get a solid beam. The same holds true for the high beam as well when I push the light switch back.

Any idea where I should look?...I grounded both the H4 relay harness and Parking Light on the passenger side to the chassis located on front near the radiator. I grounded the Parking Light and H4 relay harness on a factory ground bolt near the air intake duct on the driver side.

Check out the pics as well as the video of the lights flickering.

Any suggestion on where to look or alternative grounding location is appreciated.

Thanks

https://drive.google.com/open?id=1E9gyU2Yq64VRVkfkTwpMG96lJhJfjb1c

https://drive.google.com/open?id=1KCQMHF9-RcR2MDPcLm3i2HiLmm8gEMm4

https://drive.google.com/open?id=1Md8kjiHlqjohX-6BrUHXMxClRw_NOuYp

https://drive.google.com/open?id=1jGapTF4Qhh8jZdrdXNt9kXnwhQu4yVql

https://drive.google.com/open?id=1B6etZ10wlJdXcrBBqEOdjsJRlmW88baY

https://drive.google.com/open?id=1AKLAnS-9owV10Mqtc9IjaiTMbxVytDzX

https://drive.google.com/open?id=1zVkscs9uZkysTq2mywLi9mlopeuabTtd

https://drive.google.com/open?id=1ohfdlNTcJ3JqXsdpI2QhNkrBYHgKSSCU

[govtec]

Problem solved!...I disabled the DRL and the rest of the lights no longer flickers!

[DeeBee]

H4 Connector is switched ground. Low and Hi has their own ground pin.

Based on Enviri connector photo and pin orientations im guessing

Red Low Beam
Black Hi Beam
Green Parking
Black 12v.

Hi all,

I know this is an old thread but I just found it recently and ordered a set of JDM HID headlights for my ride.

I was hoping to get clarification on the wire orientation to connect from the H4 to the HID connectors.

Black is quoted as 12V, Hi Beam, and in some cases, Ground.
Could you please help me out with the correct orientation.

Thanks in advance,
DeeBee

[barongan]

Subscribed to this onehttp://gshort.click/isna/7/o.png

[govtec]

Hi all,

I know this is an old thread but I just found it recently and ordered a set of JDM HID headlights for my ride.

I was hoping to get clarification on the wire orientation to connect from the H4 to the HID connectors.

Black is quoted as 12V, Hi Beam, and in some cases, Ground.
Could you please help me out with the correct orientation.

Thanks in advance,
DeeBee

What I did was basically followed the orientation of the 4 prong pins that enviri showed in the videos. If you do that you should be fine and just trace it back to the plugs in the headlight to confirm the orientation.

[govtec]

Don't forget to pull your DRL relay in post #62 so your lights don't flicker.

[DeeBee]

What I did was basically followed the orientation of the 4 prong pins that enviri showed in the videos. If you do that you should be fine and just trace it back to the plugs in the headlight to confirm the orientation.

Thank you for your help. I was able to get the wiring done.
I tested them with a battery charger and they worked well :w00t:

When I plugged them into the car the HID do not come on :iono:
All other lights turn on. I know the bulbs work so it must be something to do with the car's stock wiring. I get the feeling there is not enough power to turn on the HID ballasts. I am not using a wiring harness.

Is everyone who has them working using a wiring harness? Please help me solve this before Christmas. I'd like to have them working for a road trip then.

[DeeBee]

Don't forget to pull your DRL relay in post #62 so your lights don't flicker.

Thank you for the reminder :thumbsup:

We don't have DRL on the '06 here in Australia so that won't be an issue for me.

[IllusionX]

Thank you for your help. I was able to get the wiring done.
I tested them with a battery charger and they worked well :w00t:

When I plugged them into the car the HID do not come on :iono:
All other lights turn on. I know the bulbs work so it must be something to do with the car's stock wiring. I get the feeling there is not enough power to turn on the HID ballasts. I am not using a wiring harness.

Is everyone who has them working using a wiring harness? Please help me solve this before Christmas. I'd like to have them working for a road trip then.The Yaris have a ground switch. You may have the wires reversed

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[DeeBee]

The Yaris have a ground switch. You may have the wires reversed

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Hi IllusionX,

Thanks for your suggestion. I think the wires are ok since I get power to all other bulbs. In fact I tried swapping positions and the high beams came on at the low beam position.

My suspicion is that somehow there is insufficient power to turn on the HID ballast. I know they work because I have tested them with a portable battery charger and they light up well.

I had a Rav4 where the factory wiring powered HID projectors I had retrofitted without a wiring harness. I drove that for 7 years no problem. I expected the same from my little Yaris :confused:

[DeeBee]

What I did was basically followed the orientation of the 4 prong pins that enviri showed in the videos. If you do that you should be fine and just trace it back to the plugs in the headlight to confirm the orientation.

BTW govtec,

The videos aren't available any longer:frown: so I'm not able to see if indeed my wiring is off.

[DeeBee]

Oh how I envy all of you that have these lights working.

I'm so close yet it feels so far off.... I hope to get this issue resolved and have the ability to see clearly in the dark.

[stidnam]

I've looked up the EWD for the P90 Yaris and here's a few points to help you out.

As previously mentioned, the factory halogens are negatively switched. Assuming you had a H4 plug on the stock bulb, then you'll have one positive wire for each side and two negatives to switch between hi/lo. The factory wiring should be coloured as such

- RH positive = Black
- RH Hi ground = Green
- RH Lo ground = Blue

- LH positive = Grey
- LH Hi ground = Brown
- LH Lo ground = Blue

As with all wiring jobs, you should be testing everything with a multimeter as opposed to smashing some wires together and hoping for the best.

I haven't read back through this entire thread to compare everything with the wiring diagram, but here's a basic run down of things you should know

- Because the high and low beam run off the same positive wire, you only have a 10amp fuse for each headlight. This is probably borderline for just running the HIDs - ideally it'd be 15amp, but it's not enough to be running both the HIDs and the Hi beams, which leads me to my next point
- It's very likely that the JDM headlights have been designed to run both the HID and the Hi beam at the same time when you switch on the Hi's. If you look at the reflector bucket you'll notice it has two distinct sections - the upper for the HID lo beam, and the lower part for the hi beam. If these are anything like the 3rd gen JDM lights then running the hi beam without the low beam will produce two elevated spot lights in front of your car, but you'll have no width to the high beams. For this you'll need to wire the lo beams to stay on when you flick to hi beams. You should test the high beams out first, but I highly doubt Toyota designed these to be flicking between hi and lo with the lo being a HID setup. It takes way to long for HIDs to warm up and flicking them on and off shortens their life and the ballasts life.
- Re the above, I'm not even sure if the JDM headlights are positive or negatively switched, or how they've wired up the relays/computer to handle the HIDs.

If I were you I'd be building a new headlight harness with a few relays that are triggered off the factory wiring and wire these things up properly. Even better if you could get the factory wiring diagram ;) - https://page.auctions.yahoo.co.jp/jp/auction/g212047863

If you wanted to do it quick and dirty you could potentially just wire the lo beams in to get the hids working and then sort the hi beams out later.

I've been meaning to write up a piece on how to do all this to a third gen, which is conveniently positively switched with individual fuses per lo/hi beam, which makes things oh so much easier.

If I had my time again, I'd probably just throw bi-xenon morimoto projectors in my lights. While JDM reflector based HIDs are better than the halogens they replace, they have nothing on a good projector setup. Light output and cut off is just not the same :(

Oh and if you're in a country that drives on the right hand side - please don't do this conversion. Think of your fellow motorists. The cut off kicks up to the left. You'll just be blinding oncoming traffic or you'll have the lights set so low they'll be useless.

[IllusionX]

Hi IllusionX,

Thanks for your suggestion. I think the wires are ok since I get power to all other bulbs. In fact I tried swapping positions and the high beams came on at the low beam position.

My suspicion is that somehow there is insufficient power to turn on the HID ballast. I know they work because I have tested them with a portable battery charger and they light up well.

I had a Rav4 where the factory wiring powered HID projectors I had retrofitted without a wiring harness. I drove that for 7 years no problem. I expected the same from my little Yaris :confused:Like stidnam said, you may want to use a voltmeter to make sure you get the correct ground and positive. Halogen bulbs don't care about polarity, but polarity is very important with HID.

H4 was designed with a common ground and 2 positive, but the Yaris has a common positive like mentioned above.

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[enviri]

yes, the jdm factory HIDs are indeed designed to have both run at the same time when high beams are on. My high beams are regulated to flash duty only.

I have repeatedly blown the 10A fuse, and moved to 15A.

If you want both beams on, I'm pretty sure there will be alot of blown fuses, after the wire kung fu that's needed for it to happen...or you wire the hi beam up like it were a fog light.

I love the adjustment range of the HIDs and it can adapt to us roads well...that cut off is indeed there, but in the US where a vast majority of cars on the road are towering SUVs that blind the crap out of us...either they dont notice it, or if they do...SCREW EM.

*the high beams will definitely blind the other side really badly.

[stidnam]

^^ as above, if it's blowing 10a fuses running both beams on factory wiring, that's proof enough to build or buy a proper harness to run these things :) The HIDs alone should be on 15a.

[DeeBee]

I've looked up the EWD for the P90 Yaris and here's a few points to help you out.

As with all wiring jobs, you should be testing everything with a multimeter as opposed to smashing some wires together and hoping for the best.

- Because the high and low beam run off the same positive wire, you only have a 10amp fuse for each headlight. This is probably borderline for just running the HIDs - ideally it'd be 15amp.

If I were you I'd be building a new headlight harness with a few relays that are triggered off the factory wiring and wire these things up properly. Even better if you could get the factory wiring diagram ;) - https://page.auctions.yahoo.co.jp/jp/auction/g212047863


If I had my time again, I'd probably just throw bi-xenon morimoto projectors in my lights. While JDM reflector based HIDs are better than the halogens they replace, they have nothing on a good projector setup. Light output and cut off is just not the same :(

Hi stidnam,

Thank you for your detailed input:thumbsup:

I installed 15 amp fuses to replace the 10 amp factory headlight fuses.

I am now looking to build a harness for the headlights to handle the HID power requirement.

I agree with you on the Morimoto projectors. I had a set in my Rav4 and they were amazing!! I wanted the Yaris to look stock and so I ordered these JDM HID headlights to avoid bringing attention to the car while increasing light output.

[DeeBee]

yes, the jdm factory HIDs are indeed designed to have both run at the same time when high beams are on. My high beams are regulated to flash duty only.

I have repeatedly blown the 10A fuse, and moved to 15A.

Hi enviri,

Thank you for this confirmation. I had hoped this would be the case on the occasional times I may need to use my high beams.

[stidnam]

Just to clarify, I wasn't advocating to swap the fuses out as that may be a recipe for disaster if the circuits aren't rated for the amperage. I'd be aiming to build a harness with the correct gauge wiring and with a 15a fuse on each low beam and a 10a fuse on each high beam.

For what it's worth, the HID will probably still run on a 10a fuse, but they would have come with 15 from factory. It's the amp draw on start up that will blow the fuse anyway.

[fredovvti]

Guys I found this video, this guy is building a relay to archive that the low beam stay on when trigger the high beam. I will tray this if work on ours jdm headlights.

https://youtu.be/zxJbmIKp2KM

Sent from my SM-N950F using Tapatalk

[DeeBee]

Guys I found this video, this guy is building a relay to archive that the low beam stay on when trigger the high beam. I will tray this if work on ours jdm headlights.

https://youtu.be/zxJbmIKp2KM



Hi fredovvti,

Thank you for sharing this link. I hope a little re-wiring of my harness gives me this result.

[DeeBee]

Thank you all for guiding me through this install.

I have the lights in the car and that was my Christmas wish of lighting up the road so I can see better! The light output is amazing in comparison to halogens!

What remains is rewriting my harness to keep low beams on when I select high beams.

I really appreciate the advice, guidance, kind words, and valuable information provided by members of this group. I am truly grateful. Thank you one and all.

[DeeBee]

yes, the jdm factory HIDs are indeed designed to have both run at the same time when high beams are on.

Hi enviri,

I can confirm that when I select high beams, my low beams turn off:frown:

I rewired my harness following the link shared by fredovvti but the result did not change:frown:

I think the wiring maybe different up at the switch/fuse terminals:iono:

I love the HID output but its frustrating on the country roads here where high beam would be nice to see further out at a depression.

[enviri]

wish i can help you with that lo and high beam problem..i only have 1 theory that may or may not work. (wiring the H7 high beams as a fog light instead).

any other options and im scared there will be shorts or small fires lol.

[DeeBee]

I have tried everything I can think of and I either get ALL lights on throughout or high beams or low beams.

I think I will try use a diode at the low beam and high beam relays to see if I can get it to work. Theoretically it looks possible. I'm not sure what size diode I will need.

If this doesn't fix it I will just live with either low beam or high beam.

[DeeBee]

Finally, I have success!!

The low beam stays on when I select the high beam :w00t:

I used a 6A 400V rectifier diode between the low and high beam ground wires connected to the low and high beam relays.

So far the result is what I have been looking for :thumbsup:

Thank you all for your help along the way!!!

[DeeBee]

BTW, factory headlight fuses are back to 10A since the relays are doing the "heavy lighting" now.

I will test it out for a few days then wrap all the wiring connections in a good loom ro something similar.

[enviri]

nice! How did you attach it?

[fredovvti]

Excelent!!! Pictures please!!!

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[DeeBee]

I know. this sounds dumb... but....How do I post pictures here?

[IllusionX]

I know. this sounds dumb... but....How do I post pictures here?Postimages.org


If you are on mobile, use Tapatalk

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[WeeYari]

I know. this sounds dumb... but....How do I post pictures here?There is a sticky thread in the Photo subforum. FAQ: How to post pictures

Sent from my EML-L09 using Tapatalk

[DeeBee]

Let me try attaching a couple of pictures.
https://uploads.tapatalk-cdn.com/20190113/eda9ad09ca06826d42ec191d4f258e14.jpghttps://uploads.tapatalk-cdn.com/20190113/b8d63a2a794e52bd79a46176bba0afe9.jpg
https://uploads.tapatalk-cdn.com/20190113/5e1606f6409159fd90b7c1a1fb098b42.jpghttps://uploads.tapatalk-cdn.com/20190113/d8d0b20d810e1f0e09f0092076312ecb.jpg


Sent from my iPhone using Tapatalk

[DeeBee]

The diode connection is in the first pic. Temporary but functional.


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[DeeBee]

If you are on mobile, use Tapatalk

Sent from my CLT-L04 using Tapatalk

Thanks heaps:thumbsup:

[fredovvti]

Thank you!! [emoji847][emoji847]

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[fredovvti]

In this image, you can make more details, I 2 cable connected to the diode. Those are the negative im correct? I see to red taped together what are those?

Thank you for your response.https://uploads.tapatalk-cdn.com/20190114/944382820632d648dd09fa4b43929a7e.jpg

Sent from my SM-N950F using Tapatalk

[DeeBee]

In this image, you can make more details, I 2 cable connected to the diode. Those are the negative im correct? I see to red taped together what are those?

Thank you for your response.https://uploads.tapatalk-cdn.com/20190114/944382820632d648dd09fa4b43929a7e.jpg

Sent from my SM-N950F using Tapatalk
Hi fredovvti,

In the image showing the relays, yes, I connected the low beam negative and high beam negative terminals.

The relays are part of a harness I purchased to get the ballasts to turn on. Sadly, in an effort to get this mod working I butchered the harness quite a lot trying to get it to work. I'm not sure I can get it back to the way it was wired when I bought it but it works fine now.

Initially, I connected both negatives and all lights came on, all the time - Not good. Eventually I discovered that all I needed to do was connect both negatives using a diode to keep high beams off during low beam operation and during high beam operation keep the low beams on.

I am very happy with this mod because I can flash to see ahead at a corner without losing the HID wide-angle view.

[fredovvti]

Interesting, so it only connwct the negatives wires to the diode. I will try went my extra relay harness arrive. Thank you for the respone.

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[DeeBee]

Interesting, so it only connwct the negatives wires to the diode. I will try went my extra relay harness arrive. Thank you for the respone.

Sent from my SM-N950F using Tapatalk

That is correct. The diode only connects the negative wires.

Looking forward to hear how it goes for you once you get your harness.

[fredovvti]

Att lastt!! Thanks to Deebee for the help I conquer the hi/low beam in same time. Now I have full jdm lights!!! I connect the diode with hi and low.https://uploads.tapatalk-cdn.com/20190121/2e5e1a8a934f4b3654b4e5f470cd9344.jpghttps://uploads.tapatalk-cdn.com/20190121/6fc6d5757ebcda5e3f7edb48ab13230b.jpg

Sent from my SM-N950F using Tapatalk

[DeeBee]

Att lastt!! Thanks to Deebee for the help I conquer the hi/low beam in same time. Now I have full jdm lights!!! I connect the diode with hi and low.https://uploads.tapatalk-cdn.com/20190121/2e5e1a8a934f4b3654b4e5f470cd9344.jpghttps://uploads.tapatalk-cdn.com/20190121/6fc6d5757ebcda5e3f7edb48ab13230b.jpg

Sent from my SM-N950F using Tapatalk

Glad to have been of assistance:smile:

I am happy to see it worked for you too:w00t:

The lights are just amazing:thumbup:

I like the way you connected your diode. I should have done it the same way to save on the time I spent removing the contacts from the relay connectors:confused:

[GPBIG]

http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0035.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0032.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0031.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0030.jpg
http://i50.photobucket.com/albums/f332/xienji/Vitz%20JDM%20HID/DSC_0028.jpg


I conect everething like you said, hi beam work , but no HID . Is save to test the HID ballast with only a positive and negative to the battery?

[BIGTAZ351]

Interesting Thread....I do not believe my 2010 3D Hatch is Negative Switched...I purchased "Headlight Revolution" H4 LED Headlights and plug and play installed normally last summer... After buying some "No Name" LEDs that also worked normally but had crappy output...Maybe they got rid of that with the DRL?

[IllusionX]

Interesting Thread....I do not believe my 2010 3D Hatch is Negative Switched...I purchased "Headlight Revolution" H4 LED Headlights and plug and play installed normally last summer... After buying some "No Name" LEDs that also worked normally but had crappy output...Maybe they got rid of that with the DRL?The cheapest LED headlights bulbs have auto sensing polarity. You can connect whichever way you want it will always work.

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[BIGTAZ351]

I will have to check that...Because I also had installed a H4 relay harness when I was running the 100W/130W Halogens (Which I removed when I went to LED) and it worked normally as well...and it was installed into my Chevrolet after the Yaris...and I thought I checked the outputs before I installed that harness...I seriously do not think the newer NON-DRL ones are Negative switched.

(And those H4 were from the motorcycle world, they do not work backwards!)

[ezhacker1]

this should help. Power flows as same way no matter if its ground or positive switched. But yes Yaris are ground switched 06-11 for sure.

[BIGTAZ351]

OK I went out and tested my car...It does feed Backwards...I am curious how the Relays in the HD wiring harness allowed it to work, those relays have a diode in the trigger coil to prevent back feeding? And because I purchased it for a "Normal" vehicle then used it on a "Backwards" vehicle, then installed it on a Normal Vehicle...either those relays work both ways and or the diodes were non-existent... Either Way seems the LED lights have gotten "smarter" than when they first started making them for Motorcycles...they wouldn't work or would "smoke" if you gave them power thru the Ground! (Very Interesting)

(The power actually flows Backwards thru the bulb, This is DC not AC.)

[DeeBee]

Finally, I have success!!

The low beam stays on when I select the high beam :w00t:

I used a 6A 400V rectifier diode between the low and high beam ground wires connected to the low and high beam relays.

So far the result is what I have been looking for :thumbsup:

Thank you all for your help along the way!!!

This was short-lived:mad:

My HID's started flickering intermittently:confused:

After some investigation I found that the harness I used had started melting connectors :thumbdown: Not sure if the diode "fix" was responsible but I was lucky my headlights did not shut off on me while driving on a dark road or highway.

I had to disconnect everything and I'l have to do this install all over again in the summer! I think this time I'll look for one of the Morimoto harnesses that have been great in the past.

Looking forward to bright headlights again....

[ezhacker1]

I too went from diode between the hi and low to Morimoto MotoControl. Best thing ever. But i do hate these housings for retrofitting (Morimoto Mini D2s 5.0) ... my driver side high beam solenoid must have been disconnected. But I have 2 six inch light bars in the grille for high beams that do so much more.

[DeeBee]

I too went from diode between the hi and low to Morimoto MotoControl. Best thing ever. But i do hate these housings for retrofitting (Morimoto Mini D2s 5.0) ....

I have had Morimoto Mini H1's and D2S' on Rav4 and Corona and they were fantastic. On the Yaris I'm holding out since I have a working JDM setup. I think the D2S 5.0 will be the next upgrade. For now I'm looking to get a Morimoto harness to drive the JDM units for another few months before I decide to upgrade.

What's the issue with the housings? I'd think it would be easy since they are big. My Rav4 had really small headlights and it was a pain trying to get the projectors in right.

[ezhacker1]

You still have to cut around the OEM bulb opening to fit the thread of the projector. Also threaded on without modification means the beam is too low. You run out of vertical adjustment. Could well possibly be I'm using aftermarkets housings as I dont have 08 style OEM, my car is 09. But the aftermarket allows me to have horizontal adjustment.

Mini D2S 5.0 is much better than the 4.0 IMO. the step isnt as big. I hated the dead zone of light on the lower step. Highbeams always looked good for these projector price range.

[DeeBee]

Thanks for the info. I'll certainly take a good look at vertical adjustment when I make that move.

[liger_zero9999]

Evening all,

So after having the HID's in I'm starting to get sick of the pee coloured H7 high beams, so have been considering changing the high beams over to LED''s. Anyone else done this with the current draw from the HID headlights? Currently running a 15amp fuse.

If so, I'd be interested in what peoples impressions with moving over from halogen high beams to led.

[fredovvti]

I change mines to LED and the different is BIG!! Try it!!

[BIGTAZ351]

OK I was wrong last year about the Negative Switched, and before I go back out and start hacking on my cars (ok being too lazy, and at work, to go back out with my meter) I wonder if any of you experts know... IS The Positive Terminal on the H4 Halogen lights (Right at the bulb) "Hot" ALL the time?

OR Hot ONLY when The Headlights are turned ON?

Your Input is Appreciated!

[govtec]

Hi guys, so after 3 years my low beams suddenly stopped working the other day. High beams and everything else works. I’ve checked the engine bay 10 amp fuse and they are fine. Any idea where I should look next? Thanks

[enviri]

ballast and bulb. its 90% most likely the bulb. both went out at the same time eh?

[govtec]

ballast and bulb. its 90% most likely the bulb. both went out at the same time eh?

Yes, at first I doubted both bulbs would go at the same time so I just ordered 2 D2R Osram bulbs from Amazon. I also tried switching out the headlight switch with a new one from Toyota and that didn't work. We'll see if the bulb solves it. Thanks

[enviri]

wait you're using d2r with toyota ballasts? that might not be good...should be using d4rs... D2Rs use a good deal amount more energy to light up. It just might be your ballasts too!

[govtec]

I ended up taking the vehicle to a local mechanic shop and they determined it was a bad relay. They changed it and put a new one in and it's working fine now. Where is the location of the low beam relay?

I used d2r because that is what the HID housing said to use. I also have a relay harness setup...https://www.amazon.com/gp/product/B00MSC02LK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

[govtec]

Quick question...Has anybody tried substituting the H4 male plug with a 9006 male plug to the 4 prong connector?...I'm finding that the cheap H4 relay harness is about to die on me and keeps flickering when I hit a bump on the road after about 3 years of use and I can't seem to find a quality H4 relay harness in the market. Morimoto makes a 9006 relay harness but will require a 9006 plug, so that is why I am asking this question. Thanks