When Monitored and Set Condition:
WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored: Under closed throttle decel and Fuel Pulse Width equal to zero for 30 seconds.
Set Condition: One of the CKP sensor target windows has more than 2.86% variance from the reference window.