P0315low severityPowertrain
Crankshaft Position System Variation Not Learned
on 2015 Mazda MX-5 Miata 2.0L I4 · RWD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1