What does code P2381 mean?

Q: What does code P2381 mean?

EGR Sensor D Circuit High. P2381 indicates that the powertrain control module has detected an abnormally high voltage on the signal circuit of the exhaust gas recirculation (EGR) sensor, which is typically a position or differential pressure sensor integrated into the EGR valve assembly. The computer expects the sensor's return voltage to stay within a calibrated range, and a sustained high reading tells the module that the circuit is open, shorted to voltage, or that the sensor's internal electronics have failed.

DTC codes / P23xx · Ignition system and misfire / P2381

P2381EGR Sensor D Circuit High

P2381 indicates that the powertrain control module has detected an abnormally high voltage on the signal circuit of the exhaust gas recirculation (EGR) sensor, which is typically a position or differential pressure sensor integrated into the EGR valve assembly. The computer expects the sensor's return voltage to stay within a calibrated range, and a sustained high reading tells the module that the circuit is open, shorted to voltage, or that the sensor's internal electronics have 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.