Originally Posted by snik (Post 1193314)

Hmmm, my ALC is also bad I'm I'm pretty sure for the same reason. I've had to replace the ignitor module several times.

Originally Posted by crystalworks (Post 1193315)

We can take a look at it while your truck is here getting the EHCII deleted. I have 2 spare ALC modules for the headlights if yours is borked. Do either one of your lights level? Or both are stationary?



If both you may want to order an LWR module to have on hand just in case. I saw one on Ebay for ~$20. Make sure you get the right one, there is a white one and a black one. Both apply to E53's. If your truck needs a white one I have a spare here for you along with the ALC modules.

Originally Posted by snik (Post 1193317)

Pretty sure they're both stationary.
LWR module?

Originally Posted by crystalworks (Post 1193319)

This thing. It lives above the EHCII computer and GM behind the glove box.



https://i.ebayimg.com/images/g/-t4AA...-S/s-l1600.jpg



https://www.ebay.com/itm/BMW-325i-33...0ed3%7Ciid%3A1



Mine has that black version, but there is also a white version. If your truck takes the white one, I have one here.



https://i.ebayimg.com/images/g/JWoAA...Q5/s-l1600.jpg

Originally Posted by snik (Post 1193320)

Ok. I'll buy the black one just in case.
Why would that go bad tho?

Originally Posted by crystalworks (Post 1193325)

No idea. Honestly yours is probably good and the system needs resetting. But for $20 better to have it on hand while you're here just in case. You're truck is optioned for alc right?

Originally Posted by crystalworks (Post 1193319)

This thing. It lives above the EHCII computer and GM behind the glove box.

https://i.ebayimg.com/images/g/-t4AA...-S/s-l1600.jpg

https://www.ebay.com/itm/BMW-325i-33...0ed3%7Ciid%3A1

Mine has that black version, but there is also a white version. If your truck takes the white one, I have one here.

https://i.ebayimg.com/images/g/JWoAA...Q5/s-l1600.jpg

Originally Posted by Clavurion (Post 1193336)

Are you mixing two different systems?

Adaptive lights (xenons with lateral movement) have that AHL module. Normal xenons with auto leveling have separate LWR module only on pre 9/2002 versions. Post 9/2002 version have LCM IV which has the functionality of LWR without that separate module. Halogens with manual aim are always controlled by LCM.

Originally Posted by crystalworks (Post 1193338)

I don't think so. Mine has xenons (522) and ALC (524). It is equipped with that LWR module. I also have LCM IV.

But I'm new to module coding so maybe I've gotten something mixed up? I have physically pulled the lwr (61356934122), headlight SMC modules (63126939069), and lcm (61356960253) from the truck though to verify when I was replacing parts. Everything works great now years later after the reset.