DTC P1336: CKP System Variation Not Learned: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Saturn SW2, 2001 Saturn SL2, 2001 Saturn SL1, 2001 Saturn SL, and 2001 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.
Crankshaft Position (CKP) sensor is used for fuel delivery, spark timing and misfire diagnosis. CKP relearn procedures can be performed using scan tool if no current/history misfire counts on any cylinder exists. DTC sets when vehicle is driven greater than a calibrated speed and crankshaft variation has not been learned.