Modded Mustang Forums banner

Can't get new headlights from HMS to work, not sure what I'm doing wrong.

2.3K views 23 replies 7 participants last post by  Iconoclast107  
#1 ·
I don't know how this isn't working, I'm 99% sure it's hooked up correctly. See attached pics. Ground to the battery is on the positive as instructed, other two grounds are to the chassis and no paint to interfere. Passenger side light has a connection into the OEM connection and the ballast, driver side ballast connected. Am I missing something?
 

Attachments

#2 ·
Ground should be on the negative side.
 
#3 ·
I didn't try that, but the note taped to the ground says Battery +, so I assumed that meant it was supposed to go to the positive side.
 
#4 ·
That's the power wire then, not the ground. I'll look at the pics. I didn't read past that point I'm your first post.

---------- Post added at 06:39 PM ---------- Previous post was at 06:35 PM ----------

Have you tried to turn them on with the car running or engine off? When my battery gets low the HID's won't kick on until after I start the car.
 
#5 ·
Tried switching it to the negative just for funsies, but it didn't work. 8mm socket fell inside the battery cover, lol, having a hard time getting it out. Battery ground is back to the positive side. Is there supposed to be a positive and negative ground for the battery? Because there's only one that will reach to the battery. The other two grounds are by each headlight.
 
#7 ·
He just has his terms messed up. He is calling his power lead a positive ground, I think.

Icon, quit calling your power wire a ground. Positive wire to the battery or power source is not a ground. A ground wire is at the end of a circuit that connects to the chassis, engine block or negative side of the battery. The two wires that are bolted to the fenders are your grounds.

And I looked at the pics and nothing jumped out at me. When you try to turn your lights on do the ballasts make any noise? A faint buzzing perhaps?

---------- Post added at 12:25 AM ---------- Previous post was at 12:22 AM ----------

I'll have to go look at mine but I think my passenger headlight plug goes into a controller and then to each ballast. Do you have an extra component sitting around? Post up a link to what you bought so I can take a look at it.
 
#8 ·
#9 ·
Well the link didn't help. I was looking for a what's included parts list or an install guide.

You have a bracket but nothing to mount with it? That kinda strikes me as odd. Makes me think you are missing a component. But it probably means nothing.

---------- Post added at 01:57 AM ---------- Previous post was at 01:44 AM ----------

I went over the pics again. The connector in the second pic, no way that can go on backwards?

The only other thing is to start step by step. Check your grounds are good. Metal on metal. See if your ballasts are getting power. Turn the light switch on, put you hand on the ballast and feel for a buzzing or if it gets warm. Got a multimeter? I would check the power from the connector to the ballast and see if that's getting power. Check your positive wire to the battery. Make sure there is no corrosion on the terminal. Check the OEM harness connection for power. Sounds silly to mention it now but did you check the fuses. There should be one on the Wire to the positive side of the battery.
 
#10 ·
If you can post a wiring diagram maybe i can help. I installed HID's in my F150.

Basically my setup had to use a relay. The Headlight switch on the dash cannot handle the surge current of the ballasts on startup. So the hot wire that normally goes to the headlights from the dash switch goes to the relay. The relay then goes between the battery and the ballasts. The high voltage ballast lines run to the bulbs. A fuse on the relay between the battery and ballast is needed to protect that wiring.

Poor grounds are always a problem to check first.
 
#11 ·
HIDGUY BI-XENON HARNESS - H13 (9008)


That is the relay that you are missing, without it your lights won't work. Call them and see if they give it to you and you pay shipping. I am surprised they didn't mention it.

---------- Post added at 09:48 AM ---------- Previous post was at 09:43 AM ----------

HIDGUY BI-XENON HARNESS - H13 (9008)


That is the relay that you are missing, without it your lights won't work. Call them and see if they give it to you and you pay shipping. I am surprised they didn't mention it.
HIDGuy Bi-xenon Harness - H13 (9008) - HMS (HIDGuy Mod-Shop)
 
#13 ·
I don't think he has the dual kit. Looked like those halo projectors were a single unit.
 
#14 ·
Correct. I'm pretty sure I have a harness, but I was calling something a ground when it wasn't, so who knows. I'll take them off and take more pictures.

The grounds by the fenders are touching metal. The top part of the bolt is white, but there is unpainted metal under the top part and where the ground is resting under it. I'll grab a picture of that, too.
 
#15 ·
Here's the back of the headlight. They shipped the headlights with the HIDs already installed so they were "Plug and Play" ready. The two free wires are the halo and side LED lights.

Tried adding some captions to some of the pics with my Note 4, but now the files are invalid for uploading, so there will be a small delay adding the other pics now that I have to get the other originals uploaded.

Edit: I added pics for the mysterious relay bracket I don't know what to do with, as well as pics showing the driver and passenger side grounds have exposed metal rather than paint interfering with the connection.

Edit, Jr.: Last of 5 pics per post, "Harness", added. More to come w/ details on said "Harness".
 

Attachments

#16 ·
Harness things, three parts, full harness pic in previous post. Battery cable and fuse, driver's side part with ground and ballast hookup, and passenger side with ground, ballast hookup, OEM hookup, and two box-shaped things I don't know the name of.

Am I missing anything?
 

Attachments

#17 ·
I still can't read the tags on the wires in ur photos. I think the relays are there - those black cubes with the red bottoms. I need to read the tags on the full harness to help. Also a pic of the ballast connector.

First thing..where are u plugging in the original headlight wire from the car that originally went to the headlight bulb? Secondly, when these are plugged together, have someone turn the headlight switch on and off and the relay(s) should click even if the lamps don't light. Lets's start there.

Here is a basic diagram...
Image
 
#18 ·
That pic with the two black cubes has a ballast plug and an OEM Input plug, that's what I had plugged into the original headlight wire. I had to put my old half functioning headlights in so I could drive to work today, but I'll try and test to see if the relays click or not as soon as I can.
 
#19 ·
Yep, start trouble shooting by seeing where you are or are not getting power. Just go step by step like I outlined. We'll figure it out.
 
#20 ·
Photobucket is down but on that pic u posted with he harness on the piece of cardboard u say u plugged the orig. headlight connector that went to the light into the black and red thing with the wires coming out the back?

I need the see the other end of that thing and maybe a closeup. If it is just a receptacle for the wires coming from the dash then they are not relays and won't click.

But you have a relay bracket the looks like it might be sized to attached these two rectangular "things" to, so maybe they are the relays.
 
#22 ·
Ben,
What I see where the issue is. In your third pic you have the relay harness hooking straight the Factory harness. Instead unplug that harness and plug the male end that is coming out of that headlight (attached a pic) you will only plug in that side and the other side you can zip tie and put away. Now if you look at your headlights you still have 1 plug on each headlight that is a H13 plug, you will still need this to plug into each factory harness on each side. Plug those in as well. So the follow steps:

1. Plug the male harness thats is coming out the boot (pic attached) into the relay harness. (zip tie the other harness and put away)
2. Take both H13 plugs coming out the boot and plug BOTH to the factory harnesses.

And that should be it your set!
 

Attachments

#23 ·
How did you know the OP's name?