Xc90 ABL - One has Error Code

[TheKris79]

So I have taken my light out, removed all the modules, cleaned with contact cleaner and nothing. I can get replacement modules (it has 4, but the smaller one has no codes on it but is the one with fins and much smaller). The whole lamp even used is super expensive, but I don't know which module does active bending lights? Any clues from anyone here? If not, might ask the volvo dealership - they probably won't be interested as I'm sure they'd love to sell me a new unit . I have taken the photos of the modules here though.

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Black module is responsible of ABL swiveling bending function. Like in P3 platform.

Hmmm... based on the connection point mechanically it is only responsible for moving the lights up and down as it has a physical and electrical connection only to that screw which moves the up-down part. Unfortunately I am travelling this week and be back at home on Saturday so then I can post pictures of the mechanical parts and how they are connected during weekend. I believe that the black module gets the input from the height sensors and adjusts accordingly, but the bending function is receiving the signal via the other 2 modules(that is based on the electrical wiring inside the light so I might be wrong of course over here).
Mine is also having the issue occasionally and sometimes out of nowhere when turning left it suddenly starts operating while driving.
Apparently it is so that the system cuts off both lights eventually when 1 of them sends an error message, but it seems to be a problem always related to the left light for some reason.
I did question the ecm ventilation that is having a pipe opening directed exactly under the left light, but apparently that is the suction side of the function so it should not make difference at least that was told by volvo mechanics.
As mine started to act up again about 3 weeks ago then this time I do want to get to some result instead of paying the volvo fees of 2000 usd for it to buy new one( no point of getting used version if it acts up the same way). You cant purchase new exact version as they dont sell it anymore and have to buy 2 new lights with different modulrs which can go up to 4500 usd unfortunately. To me that seems that volvo has realized there is a problem with these but are not willing to recognize it and as they know there is not so many first year cars out there they dont bother. The new versions are from 2018 onwards.