What does code P25DC mean?

Q: What does code P25DC mean?

Fuel Level Sensor C Stuck. P25DC indicates that the powertrain control module has detected a stuck condition in the fuel level sensor circuit designated as Sensor C, meaning the voltage or resistance signal from that sensor is not changing as expected when fuel is added or consumed. The computer typically sets this code when the sensor output remains fixed over a defined period while other fuel-related parameters, such as fuel trim or tank pressure, indicate that the fuel level should be changing.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25DC

P25DCFuel Level Sensor C Stuck

P25DC indicates that the powertrain control module has detected a stuck condition in the fuel level sensor circuit designated as Sensor C, meaning the voltage or resistance signal from that sensor is not changing as expected when fuel is added or consumed. The computer typically sets this code when the sensor output remains fixed over a defined period while other fuel-related parameters, such as fuel trim or tank pressure, indicate that the fuel level should be changing.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

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.