HID wiring harness

JerZeyStangz · Jun 5, 2011

I bought 55w ddmtuning HID conversion kit, for my depo smoked projectors. They gave me there generic wiring harness but I didn't use the wiring harness because it doesn't mate to any electrical 9007 factory connector to actually TURN ON the headlights. The ddmtuning kit is a direct connection to the battery, so if install it...my headlights are going to be on every time I turn on the car, this is problem #1.

Problem #2. I used my old wiring harness from my old 9007 hi/lo beam hid kit that actually connects to factory connector, and then matted the new ballasts/bulbs to the wiring harness. Now I believe this wiring harness isn't supplying enough power to ignite the ballasts the first try. It takes 1 or 2 tries to make the headlights operate together.

Now my question is? Is there anyway I can upgrade my old wiring harness to supply enough sufficient power for these 55w ballasts, or use my new wiring harness but somehow mate it to the oem factory connector so i can actually have a choice to turn on/off my headlights.

BLCKSTNG96 · Jun 5, 2011

im not exactly sure whats going on with what your doing nate,not gunna lie haha but i'll try to be some help if i can.i just used the headlight plug adapters that the 9007 plug goes into,then that goes to the ballast,then the ones coming off the ballast plug into the HID bulb,super simple,the car gets its supply for power from the normal headlight plug.i have a harness on my old setup in my coupe but realized i didnt need it in my vert when hooked up like this.the wattage is only going from the ballast to the bulb,shouldnt matter what gives the ballast the initial turn on signal.

Patron022 · Jun 5, 2011

JerZeyStangz said:
I bought 55w ddmtuning HID conversion kit, for my depo smoked projectors. They gave me there generic wiring harness but I didn't use the wiring harness because it doesn't mate to any electrical 9007 factory connector to actually TURN ON the headlights. The ddmtuning kit is a direct connection to the battery, so if install it...my headlights are going to be on every time I turn on the car, this is problem #1.

Problem #2. I used my old wiring harness from my old 9007 hi/lo beam hid kit that actually connects to factory connector, and then matted the new ballasts/bulbs to the wiring harness. Now I believe this wiring harness isn't supplying enough power to ignite the ballasts the first try. It takes 1 or 2 tries to make the headlights operate together.

Now my question is? Is there anyway I can upgrade my old wiring harness to supply enough sufficient power for these 55w ballasts, or use my new wiring harness but somehow mate it to the oem factory connector so i can actually have a choice to turn on/off my headlights.

I used a wiring harness for a friends toyota tundra. The way it connects to the ballasts is the same as the stock connector but only difference is it connects to battery. It should still use your stock connector. The reason why your hids are turning on together it could either be a bad ballast or your not supplying enough power, make sure all the cables are connected right then turn the car on turn the dash on ( do not turn the hid's yet ) wait 20 seconds and turn them on.

Heres a picture I put together..

I hope this helps.. if you were around the corner I would give ya a hand.

JerZeyStangz · Jun 5, 2011

I'm glad you posted that picture because I can better explain myself. You see the blue connector in that pic. My new hid wiring harness does not have this option. My old hid harness has this option but it was for 35w kit. I have 55w kit mating to 35w hid wiring harness so this is the reason why the ballasts are not igniting the first time, and this is both of them. It takes a second try to make them both come on and after that everything is fine.

What I believe Blake & Patron022 is that the relay on my old hid wiring harness isn't strong enough to make 55w kit work flawlessly....so in other words I need 55w hid wiring harness that uses 9007 factory connection to make it work.

JerZeyStangz · Jun 6, 2011

where did you get that wiring harness from Patron?

edit: Nevermind, I found a few harnesses on amazon that will suit my application. One question I have is, does that stock wiring is heavy duty enough to not use a relay harness?

ttocs · Jun 6, 2011

they sell those hrns's at autozone. For the 55 watt kit you will need the relay for sure. Don't be afraid to cut the ends off of the hrns that does not fit and get the ones that will fit.

Patron022 · Jun 6, 2011

JerZeyStangz said:
where did you get that wiring harness from Patron?

edit: Nevermind, I found a few harnesses on amazon that will suit my application. One question I have is, does that stock wiring is heavy duty enough to not use a relay harness?

No bro I just googled the picture. I have 35w hids.. honestly that much of a difference from 35w to 55w. I ran my 35watters to stock harness and they light up everytime even when I dont wait. I saw order a new hid harness with the ''blue plug'' and your be golden.

JerZeyStangz · Jun 6, 2011

Its all good. I used new harness that I never put on that came with the original headlights. Low and behold they have relays and the works, the wires are a lot thicker so I wired everything together. Now they work great, I still have the same issue time to time, so my best bet is just upgrading to 40amp relays. I have 30amp relays on the harness right now.

Patron022 · Jun 6, 2011

JerZeyStangz said:
Its all good. I used new harness that I never put on that came with the original headlights. Low and behold they have relays and the works, the wires are a lot thicker so I wired everything together. Now they work great, I still have the same issue time to time, so my best bet is just upgrading to 40amp relays. I have 30amp relays on the harness right now.

Well atleast they are working now =)!

JerZeyStangz · Jun 7, 2011

Yessir, just wish they work flawlessly lol!

Patron022 · Jun 7, 2011

JerZeyStangz said:
Yessir, just wish they work flawlessly lol!

First few days whens I had mine one would turn on when it wanted to. I ended up changing my alternator since it went bad and the new one im guessing provided the power needed.

JerZeyStangz · Jun 10, 2011

Update: The harness came with to two #15fuses, 30amp relays for the high beam and low beam. I upgraded the low beams to 40amp relay with #30 fuse and I popped the fuse. I wonder what I am doing wrong. Should I upgrade the high beams as well to 40amp relay with #30 fuse so that it doesn't pop. I'm a novice in electrical and need help.

The thing thats weird about it is that the high beams work well with the original relay and fuse, but when I upgraded the lowbeams it pops, so I'm stumped.

edit: Well I did some research and found out I put the wires in reverse order to relay thats why it could of been popping fuses.

rahim · Jun 10, 2011

Megan Racing coilovers

Hello,
Easy suspension tuning is in your hands. S - Tech was made so that everyone can enjoy sports driving. TEIN based these springs on original specification so that the installation is easy. Full compliance with car inspection, and great styling. Adding some more exicitement to your ride.. The highest quality brought to you at great JayDM prices. Now comes in two types to choose from.

ttocs · Jun 11, 2011

JerZeyStangz said:
Update: The harness came with to two #15fuses, 30amp relays for the high beam and low beam. I upgraded the low beams to 40amp relay with #30 fuse and I popped the fuse. I wonder what I am doing wrong. Should I upgrade the high beams as well to 40amp relay with #30 fuse so that it doesn't pop. I'm a novice in electrical and need help.

The thing thats weird about it is that the high beams work well with the original relay and fuse, but when I upgraded the lowbeams it pops, so I'm stumped.

edit: Well I did some research and found out I put the wires in reverse order to relay thats why it could of been popping fuses.

there really is no use for a30 amp fuse and 40 amp relays. The hids draw a max of 10 amps normally at startup and then go down from there. Putting in a fuse that is larger will just run the risk of you either sending too much to the ballasts if you have a voltage spike or short and the wiring in the hrns's is not really meant to handle 30-40 amps.

ttocs · Jun 11, 2011

rahim said:
Hello,
Easy suspension tuning is in your hands. S - Tech was made so that everyone can enjoy sports driving. TEIN based these springs on original specification so that the installation is easy. Full compliance with car inspection, and great styling. Adding some more exicitement to your ride.. The highest quality brought to you at great JayDM prices. Now comes in two types to choose from.

ah sure, I would say welcome to the forum but I am sure you will never be back..

JerZeyStangz · Jun 13, 2011

there really is no use for a30 amp fuse and 40 amp relays. The hids draw a max of 10 amps normally at startup and then go down from there. Putting in a fuse that is larger will just run the risk of you either sending too much to the ballasts if you have a voltage spike or short and the wiring in the hrns's is not really meant to handle 30-40 amps.

The reason I need 40 amp relay because I have 55w ballasts. They pull more/draw a lot more voltage then the normal 35w. In the original wiring harness that came with 55w had a 40 amp relay with #30 inline fuse. So what I did was depinned that harness, and put it on my other harness. Matched the wires up to relay and it works flawlessly now. No more headlights going out when the switch is pulled. Here is picture:

This is on a bright day too, so there are really bright at night.