Originally Posted by Tangent_

The way I'd describe mine would be like cruising along and turning the ignition to off and then back on really quickly, like having it only off for under quarter second or something. I also considered a DSC issue, like maybe a wheel speed sensor was going out or something. But I don't know how a DSC fault would cause the crank sensor code, plus it did that fairly reliably once per drive, usually within 5 minutes of start up for 3 or 4 days before it went into limp-home mode. On a couple of those occasions I was at a stop light at the idle just dropped from the usual ~750 down to a struggling ~400 until I blipped the throttle. It's now been almost 3 weeks with zero recurrence.