Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.

NOTE:

The crankshaft position sensor system variation learn procedure may have to be repeated up to 5 times before the procedure is learned.

Perform the crankshaft position variation learn procedure.
If the crankshaft position variation learn procedure cannot be performed successfully, inspect for the following conditions:
- Any worn crankshaft main bearings
- A damaged or misaligned reluctor wheel
- Excessive crankshaft runout
- A damaged crankshaft. Refer to Crankshaft and Bearing Cleaning and Inspection .
- Interference in the signal circuit of the B26 Crankshaft Position Sensor
- The ignition switch is left in the ON position, until the battery is discharged
- An ECM power disconnect, with the ignition ON, that may have erased the crankshaft position sensor system variation values and set DTC P0315
- Any debris between the crankshaft position sensor and the reluctor wheel
  - If there is a condition, repair as necessary.
If the ECM is still unable to complete the learn procedure, replace the K20 Engine Control Module.