Quote:
Originally Posted by 80stech
What do you mean you can by pass modules by turning on with DIS?. LCM still needs to be functioning to light on right? Sounds like maybe the light is shorting when the auto level is dipping them and the LCM picks up the fault and shuts off the light. When you activate with DIS and there is no dip the light stays on. LCM is maybe not the problem. Drawing double the power from the other side could be a problem for the driver in the LCM though ;(
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Let me start with I am by no means a DIS/GT1 expert lol. So the auto level function works fine. The adaptive functions in both headlights work fine. Using DIS you can either do an entire systems check which runs through the LCM or you can individually select each light in each headlight and turn them on. Now, while you're testing each light in either headlight I assumed DIS was bypassing the LCM and AHL modules and only relying on the ballast, ALC and Ignitor. I may be completely wrong but just seemed logical to me how the modules and other hardware work with BMWs. Below is a picture of he error found using DIS in my LCM Module.
Because I can individually make the all bulbs turn on using DIS I know that the ALC, ballast and Ignitor are all fine. I trust the computer as it was absolutely right on everything else I have tried to trouble shoot in all 3 of my vehicles. This is only a temporary fix anyway. I eventually will replace the LCM and take care of all the errors.