Crankshaft Position System Variation Not Learned
Engine · Timing
The ECU has not completed, or has lost, the crankshaft position sensor variation learning procedure. This calibration corrects for minor manufacturing tolerances in the crankshaft reluctor wheel.
- Relearn not performed after CKP replacementMost common
- Relearn not performed after battery replacementMost common
- ECU replacement without relearnCommon
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Frequently asked questions about P0315
What does P0315 mean?
The ECU has not completed, or has lost, the crankshaft position sensor variation learning procedure. This calibration corrects for minor manufacturing tolerances in the crankshaft reluctor wheel.
Is P0315 serious?
May cause rough idle or false misfire codes. The relearn procedure must be performed with a scan tool at a shop. Service within 1–2 weeks.
How much does it cost to fix P0315?
Repair costs for P0315 range from $50 – $150 depending on the root cause and your vehicle.
Can I drive with P0315?
You can drive short distances but should have it repaired within 1–2 weeks to prevent further damage.