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Hopefully its as simple as a loose ground. I'll try and replace the stepper motor if that's it but might have to get another euro HL. Dang! I still want to show you my screenies from the testing I did. Basically it can't communicate with the stepper motor and shows no voltage either. |
From the mouth of a trainer (unofficially) for the advanced bus systems course I took, for some reason BMW engineers think soldering will introduce a higher resistance. As an unnofficial class activity we all took turns soldering wires and trying to pull apart the connection, using the soldered wire as a ground in a live circuit vs a crimped connection in a voltage drop test. Results, GOOD CONNECTION. If you decide to crimp vs solder, just use the proper size non-insulated connectors and the correct crimpers for that small size non-insulated crimps and it will be as good as it can get. Just don't forget to slip on the heatshrink before crimping.
http://i140.photobucket.com/albums/r...43_1376066.gif |
IMO there is a difference between twisting the wires together (so they have good contact) and then adding solder to keep them together, vs relying on solder for the electrical connection. The former is safe and creates a good connection, the latter is potentially a problem.
Nothing wrong with the crimp connection, if the heat shrink is done properly. |
Adaptive portion doesn't work
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Did you get your adaptive Headlight to work? I am having the same problem after opening my Driver side light and now only my passenger headlight moves. I didn't perform any major work inside, just moved some of the wire around. I checked all the wires and they are all connected right. Any help will be appreciated. |
Army,
My stepper motor in my driver side headlight was not working. Never figured out if its a bad wire or the motor itself. Since they were the Euros I wasn't about to open them up. I just lived without the adaptive. I confirmed the stepper motor was not functioning because I connected it to a GT1 and followed the test plan. Again, could not verify why the motor was not working because of bad wiring or the motor itself. If you can get access to a GT1 you may be able to narrow it down like I did. Good luck! :thumbup: |
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Twins, Thanks for the reply. I took off both my headlights and have a spare with a broken cover. I am troubleshooting it right now and for starter, the ACL, part# 5 was full of water. So now I know why it wasn't working, but I wanted to make sure that if I replace it, that this was the only part unserviceable. I took the ACL from the good Headlight and installed in the bad headlight and still wouldn't work. I decided to replace the wire from my spare light and nothing, no movement. I know the signal is getting to the light because I connected the good headlight to the plug and it moved as it should. So that leave me with the Stepper motor as you mentioned, but I am confuse as to which is the stepper motor. Is that the same as the vertical control arm? or the motor attached to the back of the projector?
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Army, I'm not sure exactly the location of the stepper motor. Try this thread. It might help you.
http://www.xoutpost.com/bmw-sav-foru...ht-motors.html |
Thanks Twins,
I have been researching this topic and it seems that it is impossible to fix this option if the center steeper is bad. $1000.00 for a new headlight is not worth the adaptive function. |
you could spend $1000 and get dual Euro clear headlights though, and maybe sell your one good headlight on ebay or the forums
OK maybe its more like 1600, this is one side: http://www.ebay.de/itm/Hella-Bi-Xeno...item2318095bbf |
^^^
Good try, but no. That price is in EURO which means $1000 each:yikes: |
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