What does code P25A0 mean?

Q: What does code P25A0 mean?

Turbocharger B Boost Control Position At Low Limit. P25A0 means the engine computer commanded the turbocharger's boost control actuator to a specific position, but the actuator's position sensor reported it was stuck at or below the lowest expected limit. The variable-geometry or wastegate mechanism is not moving as far as the computer expects, so boost control is compromised.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25A0

P25A0Turbocharger B Boost Control Position At Low Limit

P25A0 means the engine computer commanded the turbocharger's boost control actuator to a specific position, but the actuator's position sensor reported it was stuck at or below the lowest expected limit. The variable-geometry or wastegate mechanism is not moving as far as the computer expects, so boost control is compromised.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.