What does code P2A44 mean?

Q: What does code P2A44 mean?

Alternative Fuel Tank B Pressure Sensor Circuit High. P2A44 means the powertrain control module has detected a voltage signal from the alternative fuel tank B pressure sensor circuit that is higher than the expected range for the current operating conditions. The computer compares the sensor's output against a calibrated threshold and sets this code when the signal stays above that limit for a set period, indicating an open circuit, a short to voltage, or a sensor that is reporting pressure that does not exist.

DTC codes / P2Axx · Hybrid propulsion / P2A44

P2A44Alternative Fuel Tank B Pressure Sensor Circuit High

P2A44 means the powertrain control module has detected a voltage signal from the alternative fuel tank B pressure sensor circuit that is higher than the expected range for the current operating conditions. The computer compares the sensor's output against a calibrated threshold and sets this code when the signal stays above that limit for a set period, indicating an open circuit, a short to voltage, or a sensor that is reporting pressure that does not exist.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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