Guys with comfort access , make sure your door lock semsors are OK before replacing this steering column. I replaced it and still had the yellow lock. It was because of the sensors in the door handle for the comfort access system. They were malfunctioning and the car reacted by locking the steering wheel as a protection measure against possible theft( I was explained). That is why this problem is associated with battery drain; it is because the car cannot sleep due to that faulty sensor; so if left for some time and not start the car for a while, the battery drains.
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