P0315
Crankshaft Position System Variation Not Learned
This code indicates crankshaft position system variation not learned. It relates to the ignition system or misfire and may affect performance, emissions, or drivability depending on the exact failure.
Crankshaft Position System Variation Not Learned
Common causes
- medium
Faulty spark plugs or ignition coils
Worn or failed ignition components are a common source of misfire-related codes.
Typical part cost: $100-400
- medium
Fuel delivery issue
A clogged injector or weak fuel pump can cause uneven combustion.
Typical part cost: $100-400
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P0315 mean?
P0315 means "Crankshaft Position System Variation Not Learned". It is a generic OBD-II code that points to a fault in the ignition system or misfire.
Can I keep driving with this code?
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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