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.
General code reference. Confirm the definition and diagnostic procedure for your vehicle's year, model and engine. A stored code alone does not identify a failed part.
Affected components
- Engine oil pressure sensor
- Engine oil pump
- Vvt actuator
Possible causes to check
These are possible checks, not a ranked diagnosis. Follow the vehicle manufacturer's test procedure before replacing parts.
- Engine oil level low
- Oil pump worn or pressure relief stuck open
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Sources
Check each reference's vehicle and model-year scope. General background links do not establish which fault is most likely on your vehicle.
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.