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DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25F2

P25F2Turbocharger/Supercharger Boost Sensor C Circuit

P25F2 indicates that the powertrain control module (PCM) has detected an electrical fault in the signal circuit for Boost Sensor C, which is a turbocharger or supercharger boost pressure sensor used to monitor charged air pressure. The PCM compares the sensor's voltage to expected values and sets this code when the circuit is out of range, intermittent, or implausible.

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.

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