P0315
PowertrainIgnition Misfirelow severityCrankshaft Position System Variation Not Learned
What P0315 Means
The crankshaft position variation learning procedure has not been performed. Required after replacing the crankshaft sensor or PCM.
Symptoms
- Check Engine Light
- Rough idle
- Misfire codes
Common Causes
- CKP variation learn not performed
- Crankshaft sensor recently replaced
- PCM recently replaced or reprogrammed
Diagnostic Steps
- Perform CKP variation learn procedure with scan tool
- Ensure engine is at operating temperature
- Follow manufacturer procedure
Where to start: Perform CKP variation learn procedure.
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