What does code P25B6 mean?

Q: What does code P25B6 mean?

Turbocharger/Supercharger Wastegate B Stuck Closed. P25B6 indicates that the powertrain control module has commanded the turbocharger or supercharger wastegate B actuator to a specific position but the actuator feedback signal shows the wastegate is stuck closed. The computer detects this when the actual wastegate position does not match the commanded position within a calibrated time or range, typically during a self-test or when boost control is requested.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25B6

P25B6Turbocharger/Supercharger Wastegate B Stuck Closed

P25B6 indicates that the powertrain control module has commanded the turbocharger or supercharger wastegate B actuator to a specific position but the actuator feedback signal shows the wastegate is stuck closed. The computer detects this when the actual wastegate position does not match the commanded position within a calibrated time or range, typically during a self-test or when boost control is requested.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.