Thanks
Gray_Panther
I don’t know from where comes the error on my dash (which light), because I don't have Carly or any BT adapter (bought the normal cable but didn't have time to install it).
I guess, it doesn't come from Low Beam, because my Canbus cancellers are brand new, and Low Beams work perfect (if the error was from LowBeams, they wouldn't work... right?).
But, on the other hand, my HighBeam doesn’t exist, there’s no bulb. Instead they have on the projector solenoid a “heat sink power resistor” doing “bride” (trying to avoid error I guess). Solenoid works well.
EDIT: Problem solved! No more errors. I forgot to plug in fog lamp connectors...
.
Now:Lights=ON
+ HighBeam=ON --> solenoid projector works
Lights=OFF
+ HighBeam=ON --> solenoid projector works (but no light anywhere)
What I want to achieve: 
Lights=ON
+ HighBeam=ON --> solenoid projector works + cornering works
Lights=OFF
+ HighBeam=ON --> solenoid projector works (lowbeam=OFF) + cornering works
If I understood it right from your DIY, to do so, as you did, should be:
High Beam Positive --> Positive projector solenoid
High Beam Negative --> Negative projector solenoid --> Pin 2 (Negative headlight)
Plus on my case, I should delete/replace the "heat sink power resistor" for the new Cornering Lamp... I guess!
I will try later on to post some pictures I took
