Code
P0521
Lubrication
Capteur de pression d’huile — plage
Le signal de pression d’huile est hors plage — confirmez avec une jauge.
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Most likely causes
- Capteur défectueux
- Pression réelle basse
Symptoms you may notice
- Oil warning light
- Check engine light
Checks to run
- Verify real oil pressure with a gauge
- Test the sensor
- Check wiring
Tools you may need
Oil pressure gauge
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.