What does code P238C mean?

Q: What does code P238C mean?

Water in Fuel Sensor B Circuit Low. P238C indicates that the water-in-fuel sensor circuit B has reported a low voltage condition to the engine control module. The computer expects a voltage within a specific range, and a low reading tells it the sensor signal wire is likely shorted to ground or the sensor itself has failed.

DTC codes / P23xx · Ignition system and misfire / P238C

P238CWater in Fuel Sensor B Circuit Low

P238C indicates that the water-in-fuel sensor circuit B has reported a low voltage condition to the engine control module. The computer expects a voltage within a specific range, and a low reading tells it the sensor signal wire is likely shorted to ground or the sensor itself has failed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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