Circuit/System Verification
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. Refer to Crankshaft Position System Variation Learn .
- If the crankshaft position variation learn procedure cannot be performed successfully, inspect for the following conditions:
- The Service Mode is active, until the battery is discharged
- Interference in the signal circuit of the B26 crankshaft position sensor
- Any debris between the crankshaft position sensor and the reluctor wheel
- A damaged or misaligned reluctor wheel
- Any worn crankshaft main bearings
- Excessive crankshaft runout
- A damaged crankshaft
- An ECM power disconnect, with Service Mode active, that may have erased the crankshaft position sensor system variation values and set DTC P0315
- If the ECM is still unable to complete the learn procedure, replace the K20 ECM.