With Scan Tool

Ignition On/Vehicle In Service Mode
Verify there are no other DTCs set, except for DTC P0300-P0308, P0315.
- If any other DTCs are set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- If no other DTCs are set
Select: Module Diagnostics
Select: Engine Control Module
Select: Configuration/Reset Functions
Select: Learn Functions
Select: Crankshaft Position Variation Learn
Follow the instructions on the scan tool.
Verify the scan tool procedure was successful.
- If the procedure was not successful and first time here
1. Ignition/Vehicle Off
2. Verify the following conditions do not exist:
- B26 Crankshaft Position Sensor & Reluctor Ring - Foreign material passing between the components/Incorrect air gap
- Battery Voltage - Low
- Crankshaft Bearing - Worn
- Crankshaft - Excessive runout/Visual Damage
- Reluctor Ring - Misaligned/Visual Damage
- Signal circuit @ B26 Crankshaft Position Sensor - Electromagnetic Interference
  - If a condition exists, repair or replace as necessary
  - If no condition exists, repeat step 1
- If the procedure was not successful and performed 4 times or less
  Repeat step 6
- If the procedure was not successful and performed 5 times
  Replace the component: K20 Engine Control Module
- If the procedure was successful
All OK.