What does code P2377 mean?

Q: What does code P2377 mean?

Turbocharger Inlet Pressure Sensor B Circuit High. P2377 indicates that the powertrain control module (PCM) has detected an abnormally high voltage signal on the circuit for Turbocharger Inlet Pressure Sensor B, which is a sensor that measures the pressure at the turbocharger inlet. The PCM interprets this high voltage as a signal that is outside the expected range, often indicating a short to voltage, an open circuit, or a faulty sensor.

DTC codes / P23xx · Ignition system and misfire / P2377

P2377Turbocharger Inlet Pressure Sensor B Circuit High

P2377 indicates that the powertrain control module (PCM) has detected an abnormally high voltage signal on the circuit for Turbocharger Inlet Pressure Sensor B, which is a sensor that measures the pressure at the turbocharger inlet. The PCM interprets this high voltage as a signal that is outside the expected range, often indicating a short to voltage, an open circuit, or a faulty sensor.

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.