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> Yeah that's exactly how it works, just mimics the sport/comfort switch.
Huh, wonder how that happens.
IIRC, the drive dynamics switch (comfort/sport/sport+) sent both wires straight to the ICM, while the steering wheel buttons are translated into a LIN bus signal sent to the FEM.
I guess you could splice a signal directly from the buttons to the ICM, but that feels pretty invasive, as it involves going through the clock spring and down to the ICM (which is under the center console). Then again, the M2C has a single wire that goes all the way to the DME vs using existing busses, so I guess BMW has done crazier things.
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