I plan on changing my PCM out & the GM shop manual states that I have to perform a Crankshaft Position Variation Learn (CKP). My Snap-On MT 2500 does not have the function to enter this mode. What do you do when you change a PCM & need to do a CKP

Thanx

 

go to the dealer.

just had it done, it took 5 minutes and $35 for a half hour charge.

 

Thanx Knute. I just picked up a used Genisys scanner & did it ~ it is a 5 min. job.