The function does not work fully. I followed the steps that scanner prompts and it said the function was completed. Now I'm stuck with a p0315 hardcode that will not clear. I repeat: DO NOT ATTEMPT CRANK RELEARN!!! Even after performing the test drive as outlined both by the ford workshop manual and as outlined below here. p0315 remains. I went in and set it to "MIL Light" so at least I can clear it every time it comes back. The way I have it set now, it's only a matter of time before the light pops back on, but at least now I can clear it. The code now shows as "pending" instead of permanent.
http://www.svtperformance.com/forums...!-what-is-this
This is where I read about the test drive relearn. The code did not exist prior to me attempting the crank relearn through scanner.
My guess: the function isn't complete within scanner even though HP Tuners claims it is. Now it looks like I'm off to the dealer where there are a bunch of clowns that barely know how the WDS works.