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  #1  
Old 06-02-2021, 02:41 PM
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Left bi-xenon headlight out.

Hello everyone. 2004 x5 3.0i. My left headlight is out and Iím having a tough time trying to pinpoint the problem. Since Iíve owned it (only a few months) I have not gone the headlight to work. I have troubleshot it the following ways:

*unhooked the battery a few times

*Switched the bulbs and ballast with the right HL. The left ballast and bulb work fine in the right.

* unplugged and plugged in the LCM. No luck.

*I looked for the alc module behind the glove box but I didnít see it or a wiring harness for it. So I guess I donít have one?

*looked at the wires inside the headlight but didnít see anything concerning.

At this point Iím out of ideas. Any help would be great appreciated. Thanks
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  #2  
Old 06-02-2021, 05:15 PM
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Quote:
Originally Posted by Thatwhiteguy View Post
Hello everyone. 2004 x5 3.0i. My left headlight is out and Iím having a tough time trying to pinpoint the problem. Since Iíve owned it (only a few months) I have not gone the headlight to work. I have troubleshot it the following ways:

*unhooked the battery a few times

*Switched the bulbs and ballast with the right HL. The left ballast and bulb work fine in the right.

* unplugged and plugged in the LCM. No luck.

*I looked for the alc module behind the glove box but I didnít see it or a wiring harness for it. So I guess I donít have one?

*looked at the wires inside the headlight but didnít see anything concerning.

At this point Iím out of ideas. Any help would be great appreciated. Thanks
Check to see if you have power and ground at the connector?
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Old 06-02-2021, 07:08 PM
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Quote:
Originally Posted by upallnight View Post
Check to see if you have power and ground at the connector?
Which connector? The one that connects to the ballast?
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Old 06-02-2021, 07:29 PM
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Originally Posted by Thatwhiteguy View Post
Which connector? The one that connects to the ballast?
I had this problem after an accident that took out the left headlight. I had to go in using INPA (or one of those things) and tell the LCM that it had the lights that came with it. That one switch and the left headlight came to life instantly.
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Old 06-02-2021, 07:57 PM
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Do you have leveling and steering function optioned (S524 Adaptive Headlights)? If not, you won't have the ALC module.

Each headlight does also have a control module on it though (not the xenon ballast). I forget the nomenclature for it. But if it goes out you will lose that headlight. Had this happen to me due to water intrusion. I documented a workaround for it on the forums. I'll search it and link it below. But, the headlight modules are not expensive and do not require coding other than an initialization. I used INPA to do it as PropellerHead did.

https://xoutpost.com/bmw-sav-forums/...questions.html
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2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

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Old 06-02-2021, 09:09 PM
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@ PropellerHead and crystal works: so I have a laptop with inpa on it. I have the kcan cable too. I’m not sure which way the switch should be in though. Any chance you guys can walk me through it to initialization it? I’m very nťe to coding and so is my friend who owns the laptop. Thanks
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Old 06-03-2021, 03:12 PM
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Quote:
Originally Posted by Thatwhiteguy View Post
Which connector? The one that connects to the ballast?
The connector that supplies power to the ballast, since you already stated that the ballast works fine when you switch it with the other side.
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Lotus Europa 1970 S2 Renault Powered
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PORSCHE 911 Targa 1982 The Garage Queen
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BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
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Triumph Spitfire 1971 Sold
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Old 06-03-2021, 03:44 PM
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Do your headlights have one of these underneath?

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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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  #9  
Old 06-03-2021, 04:03 PM
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Quote:
Originally Posted by upallnight View Post
The connector that supplies power to the ballast, since you already stated that the ballast works fine when you switch it with the other side.
I will test it.
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Old 06-03-2021, 04:07 PM
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[QUOTE=crystalworks;1204615]Do your headlights have one of these underneath?



Yes I believe I do. Mine has a yellow label on one side. It says ď5dv 008 29***Ē 2683010450Ē. Other part says itís made in Germany by hella
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