Crankshaft Position System Variation Not Learned
2016-2016 Subaru Forester 2.5L H4
The 2016 Subaru Forester is equipped with a 2.5L flat-4 engine. Below you'll find detailed p0315 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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
Repair Notes
Perform CKP variation learn procedure.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0315 on Other Vehicles
Common Questions
What does code P0315 mean on a 2016-2016 Subaru Forester?
P0315 stands for "Crankshaft Position System Variation Not Learned". The crankshaft position variation learning procedure has not been performed. Required after replacing the crankshaft sensor or PCM.
What are the symptoms of P0315 on a Subaru Forester?
Common symptoms of P0315 include: Check Engine Light, Rough idle, Misfire codes.
What causes P0315 on a 2016-2016 Subaru Forester?
Common causes of P0315 include: CKP variation learn not performed, Crankshaft sensor recently replaced, PCM recently replaced or reprogrammed.
Last updated: March 2026