P2B57
Low Engine Oil Pressure - Camshaft Control Disabled
Engine oil pressure has fallen below the threshold required for hydraulic camshaft phasing. The ECM disables variable cam control to protect the actuator and lifters.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Engine oil level lowCommon
- Oil pump worn or pressure relief stuck openPossible
Parts involved
- Engine Oil Pressure Sensor
- Engine Oil Pump
- VVT Actuator
P2B57 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.