What does code P2374 mean?

Q: What does code P2374 mean?

Turbocharger Inlet Pressure Sensor B Circuit. P2374 indicates that the powertrain control module (PCM) has detected an abnormal signal from the turbocharger inlet pressure sensor B circuit, which measures the pressure of the air entering the turbocharger compressor. The PCM compares this signal to expected values and sets the code when the voltage or pressure reading falls outside the normal range for a calibrated period.

DTC codes / P23xx · Ignition system and misfire / P2374

P2374Turbocharger Inlet Pressure Sensor B Circuit

P2374 indicates that the powertrain control module (PCM) has detected an abnormal signal from the turbocharger inlet pressure sensor B circuit, which measures the pressure of the air entering the turbocharger compressor. The PCM compares this signal to expected values and sets the code when the voltage or pressure reading falls outside the normal range for a calibrated period.

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.