P0315
Crankshaft Position System Variation Not Learned
P0315 is an OBD-II diagnostic trouble code meaning: Crankshaft Position System Variation Not Learned. Common causes: crankshaft position (ckp) sensor malfunction, damage to the ring gear on the flywheel. Estimated repair cost: $56–167.
Symptoms
- Unstable idle
- Misfires
- Difficulty starting the engine
- Reduced engine power
Causes
- Crankshaft position (CKP) sensor malfunction
- Damage to the ring gear on the flywheel
- Problems with the CKP sensor wiring harness
- Engine control unit (ECU) malfunction
- Incorrect installation of the sensor after replacement
How to Fix
- Check the condition of the crankshaft position sensor
- Inspect the ring gear on the flywheel
- Check the integrity of the CKP sensor wiring harness
- Perform the crankshaft variation learning procedure using diagnostic equipment
- If necessary, replace the CKP sensor or flywheel
Related codes
Error P0315 by Vehicle Brand
FAQ
What does the P0315 code mean?
P0315 is an OBD-II diagnostic trouble code that indicates: Crankshaft Position System Variation Not Learned
What causes a P0315 error code?
The most common causes of P0315 include: Crankshaft position (CKP) sensor malfunction; Damage to the ring gear on the flywheel; Problems with the CKP sensor wiring harness; Engine control unit (ECU) malfunction.
How do I fix a P0315 diagnostic trouble code?
To fix P0315: Check the condition of the crankshaft position sensor. Inspect the ring gear on the flywheel. Check the integrity of the CKP sensor wiring harness. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0315?
Limited driving only, diagnose soon
How much does it cost to fix P0315?
The estimated repair cost for P0315 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat