Code result
P0315
Crankshaft Position System Variation Not Learned
High severity
What it means
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.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Faulty spark plugs or ignition coils
mediumWorn or failed ignition components are a common source of misfire-related codes.
Fuel delivery issue
mediumA clogged injector or weak fuel pump can cause uneven combustion.
Vacuum or air leak
mediumUnmetered air entering the intake can lean out the mixture and trigger faults.
Related help
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