What does code P245F mean?

DTC codes / P24xx · Auxiliary emission controls / P245F

P245FParticulate Filter Pressure Sensor B Circuit Range or Performance

P245F indicates that the powertrain control module has detected an out-of-range or performance fault in the circuit for particulate filter pressure sensor B, which is typically the sensor monitoring the outlet side of the diesel particulate filter. The computer compares the sensor signal against expected values under specific operating conditions and flags the code when the voltage or pressure reading falls outside the allowable range or fails a rationality check.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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