The P0315 trouble code is associated with Crankshaft Position System Variation Not Learned, indicating that the ECM has not learned the variation between the crankshaft position sensor and the crankshaft itself.
Crankshaft Position System Variation Not Learned
Code symptoms P0315.
1. Illuminated “Check Engine” or “Service Engine Soon” light on the dashboard.
2. Possible issues with engine starting and performance.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0315.
1. Recent repair or replacement of the crankshaft position sensor or related components.
2. Battery disconnected or replaced.
3. ECM reset or reprogrammed.
Code Solutions P0315.
1. If recent repairs or replacements have been made, ensure that the crankshaft position system is properly relearned.
2. Check for any issues with the battery, such as disconnection or replacement.
3. If the ECM has been reset or reprogrammed, follow the proper relearning procedures.