What does code P0237 mean?

Q: What does code P0237 mean?

Turbocharger Boost Sensor A Circuit Low. P0237 indicates that the powertrain control module has detected a low voltage signal on the turbocharger boost sensor A circuit, which typically means the sensor is reporting a boost pressure that is lower than expected or the circuit has an electrical fault. The computer sets this code when the signal voltage falls below a calibrated threshold for a set period, often indicating a short to ground, an open circuit, or a failed sensor.

DTC codes / P02xx · Fuel and air metering (injector circuits) / P0237

P0237Turbocharger Boost Sensor A Circuit Low

P0237 indicates that the powertrain control module has detected a low voltage signal on the turbocharger boost sensor A circuit, which typically means the sensor is reporting a boost pressure that is lower than expected or the circuit has an electrical fault. The computer sets this code when the signal voltage falls below a calibrated threshold for a set period, often indicating a short to ground, an open circuit, or a failed sensor.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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