2008 GT/CS headlights - MustangForums.com

Go Back  MustangForums.com > Ford Mustang Tech > General Tech
Reload this Page >

2008 GT/CS headlights

General Tech Ask model specific questions in the appropriate category below. All other general questions within.

2008 GT/CS headlights

Reply

 
 
 
Old 09-12-2018, 12:12 PM
  #1  
mean18
Thread Starter
 
Join Date: Sep 2018
Location: Va
Posts: 3
Default 2008 GT/CS headlights

I have a 08 California special with HID headlamps that are terribly scratched. I want to retrofit to halogen mainly due to cost. Can I just replace the headlamps with halogen lamps and bulbs, remove ballasts and wiring, plug up to factory harness?
mean18 is offline  
Reply With Quote
Old 09-12-2018, 01:18 PM
  #2  
Derf00
6th Gear Member
 
Join Date: Feb 2005
Location: AZ
Posts: 11,315
Default

You can, Raxion makes some good ones. Don't go cheap though. I can't help with the wiring. You'll most likely need a new harness that can be grafted onto the factory one meaning you'll need to cut the factory connector off and add the aftermarket one on.

I have an '08 with factory HID and they had started to turn yellow from the factory UV coating coming off. Rather than replace them, I restored them. Took a lot of wet sanding, polishing, and a hit with Duplicolor UV clear for headlights to get them back to a factory look. You're right though, the price of a new HID headlight is outrageous! (600+). Aftermarket used is around 400 or 500 but then you're dealing with scratches or busted tabs....
Derf00 is offline  
Reply With Quote
Old 09-12-2018, 02:24 PM
  #3  
mean18
Thread Starter
 
Join Date: Sep 2018
Location: Va
Posts: 3
Default

Thanks for the advice. I'll check it out
mean18 is offline  
Reply With Quote
Old 09-12-2018, 05:29 PM
  #4  
08'MustangDude
4th Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 1,306
Default

You will need to buy two H13/9008 harnesses:






The way the Halogens work, the LO beam filament is off when HI beam is on.

The wiring is different with the HIDs.

This is the Halogen Wiring Schematic:



You will need to test voltages at the headlamp harnesses, and splice in the H11 connectors for
halogens. I am pretty sure there is more to it, the wiring is different for HIDs.

I can't find anything om the HID or how they work, if it's one bulb with a shutter for lo beam,
or pull-back for HI beam, or what...

So, it needs researching, but the wiring would be easy once that's determined.
08'MustangDude is offline  
Reply With Quote
Old 09-13-2018, 01:45 PM
  #5  
Derf00
6th Gear Member
 
Join Date: Feb 2005
Location: AZ
Posts: 11,315
Default

Originally Posted by 08'MustangDude View Post
You will need to buy two H13/9008 harnesses:






The way the Halogens work, the LO beam filament is off when HI beam is on.

The wiring is different with the HIDs.

This is the Halogen Wiring Schematic:



You will need to test voltages at the headlamp harnesses, and splice in the H11 connectors for
halogens. I am pretty sure there is more to it, the wiring is different for HIDs.

I can't find anything om the HID or how they work, if it's one bulb with a shutter for lo beam,
or pull-back for HI beam, or what...

So, it needs researching, but the wiring would be easy once that's determined.
It's one bulb. A Philips D3R that uses an OSRAM Ballast model 35XT5 (DS1/D3S)
Derf00 is offline  
Reply With Quote
Old 09-13-2018, 07:00 PM
  #6  
08'MustangDude
4th Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 1,306
Default

Then, one wire powers the light, one wire powers the shutter, or whatever they are
using to control the brightness. However, that means the light is always on, brightness
controlled by the shutter. The other wire is ground.

I can't find a HID schematic, and the Chilton manual doesn't have it either.... I saw one
before, but I can't find it now.

I may be able help you do it, but I need to see the schematic for the HID system.
08'MustangDude is offline  
Reply With Quote
Old 09-14-2018, 02:03 PM
  #7  
Derf00
6th Gear Member
 
Join Date: Feb 2005
Location: AZ
Posts: 11,315
Default

Here it is.

Covers HID and NonHID

btw, this site is pretty cool. THought you might like it.
http://www.bbbind.com/tsb-wiring-diagrams/

You have to sign up but it's 100% free for the TSB and wiring diagrams section.
Attached Files
File Type: pdf
DownloadPdf.pdf (149.3 KB, 8 views)
Derf00 is offline  
Reply With Quote
Old 09-14-2018, 03:55 PM
  #8  
08'MustangDude
4th Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 1,306
Default

Still doesn't designate D,E,F and G.

Two of those, like E and F would be the shutters, since D and G are the same wire for the lo-beam side.
Bulb brightness does not change with HIDs, they need shutters to open up for full lighting. Or, they pull
back from a shield for more lighting.

SO, buy the two harnesses.

Pull the HID components, and SPLICE in the bought harnesses:

Pin 1 -> HI beam lead
Pin 2 -> Ground
Pin 3 -> LO beam lead
On each side.

Test functionality before putting everything back into the car, so you can put the
HIDs back in just in case. If everything works, then you can cut off or tape up and
seal the HID Harness stuff.

That's why I suggest splicing into the existing wires, to keep the HID harnesses, just
in case. IF you want to cut them off AFTER you verified everything works, then you're
good to go, but I would find a way to SEAL them up good, just in case you want to go
back, or you sell it and THEY want to go back.

Then if it does not work, tie off and seal up the H11 harnesses for further study....

And thanks for the DIAGRAM information, it helped...

Last edited by 08'MustangDude; 09-14-2018 at 03:57 PM.
08'MustangDude is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GrnBullitt08
Street/Strip
79
12-02-2008 09:53 AM
The Potato
Street/Strip
19
08-15-2008 03:36 AM
Daniel60
2005-2014 Mustangs
13
02-17-2008 06:30 PM
Head2head
Off Topic
11
02-13-2008 03:32 PM

Forum Jump

Thread Tools
Search this Thread
Advertising
Featured Sponsors
Vendor Directory