P0318Renault MeganeYears: 1996 - 2026
Crankshaft Position System Variation Not Learned (P0318)
Reviewed by ASE Certified Technician
What does this mean?
Code P0318 indicates the crankshaft position system variation has not been learned by the PCM. This requires a relearn procedure.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Renault Megane models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
Faulty crankshaft position sensor
PCM/ECM software needs update (TSB)
Stretched timing chain or worn timing belt
Damaged, chafed, or broken wiring harness
Symptoms to Watch For
- Check Engine Light is illuminated
- Rough or unstable idle
- Engine misfiring or shaking sensation
- Difficulty starting the engine