P0315 or Inability to Do a CKP System Variation Learn Procedure

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Technician may be unable to perform a CKP system Variation Lean Procedure due to incorrect procedure on SI document number 817090.

Follow scan tool procedure as directed by the scan tool and do not follow SI document number 817090. We have notified SI and corrections will be made soon.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.