Hi, I'm having exactly the same problem with my e46 right now.

The green LED next to the light switch started flashing, I sent the AHL driver for regeneration, installed it and I could get to it in ISTA but the LED was still flashing, I did diagnostics with ISTA (moving the lamps using the menu) and the left lamp worked great, the right one not at all. I purchased and installed a new SMC module for the right lamp. The LED began to glow steadily, I can force the lamp to move with ISTA, but a new problem has arisen ... The lamp moved to the left and got stuck. What's worse, I can't code the LSMC and RSMC drivers with NCS Expert because I get the exact same error as you: ALC_DS2 COAPI.

How did you manage to code these drivers, what exactly did you change?

As for the management of the lamps and the fact that they shine too high for you.

- A) check in ISTA (or in INPA, although I do not know if there is such a reading) what the readings from the xenon leveling sensors look like, one in the right front wheel arch, the other in the rear left one. They are responsible for the fact that the car knows how to set the lamps up and down. It is enough that when replacing stabilizers or swingarms someone broke them and they will show nonsense. The reading allows you to see how they work, usually the maximum tilt when it gives the lift is over 4.00V, when I stand on an almost flat reading gives about ~ 2.5V, you can check how they behave with the reading on and how someone will press you forward and rear of the car - it should change slightly. And there is also one more thing - you should be able to manually set lamps just by wrench (up-down) its classic way to regulate.

- B) with INPA, from what I remember, you can set dynamic xenon, I don't remember if it's up or down or just right-left, but where there will be manual setting, right-left will also be vertical, go to Adaptive Headlights and look for Manually options.

- C) Running the reference run in ISTA while playing with them should set them in different ways but at the end they should return to the neutral position (if they don't do this then something is wrong, but here I refer you to point A first)


I'm currently struggling with the fact that I can't get to a single module in NCS EXPERT, even though the left lamp works perfectly ... Could you remember what exactly you did?

And as for the second person in the subject, my lamps are also currently stuck (the right lamp is as far to the right as possible) but I'm going to disassemble the lamp, unfortunately, to see what happened, although I will give the coding and cleaning the plug a chance if I come up with something)


Communication on the forum can be difficult because I'm from Poland and I don't know what country this forum is from so the time difference can be significant