What does code P25F5 mean?

Q: What does code P25F5 mean?

Turbocharger/Supercharger Boost Sensor C Circuit High. P25F5 indicates the powertrain control module (PCM) has detected an abnormally high voltage on the signal circuit of the turbocharger or supercharger boost sensor C. This sensor, often the third in a multi-sensor boost system, reports charge-air pressure to the PCM, and a high-voltage condition usually means the signal wire is shorted to a voltage source or the sensor's internal electronics have failed.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25F5

P25F5Turbocharger/Supercharger Boost Sensor C Circuit High

P25F5 indicates the powertrain control module (PCM) has detected an abnormally high voltage on the signal circuit of the turbocharger or supercharger boost sensor C. This sensor, often the third in a multi-sensor boost system, reports charge-air pressure to the PCM, and a high-voltage condition usually means the signal wire is shorted to a voltage source or the sensor's internal electronics have failed.

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.