What does code P2A43 mean?

Q: What does code P2A43 mean?

Alternative Fuel Tank B Pressure Sensor Circuit Low. P2A43 indicates that the powertrain control module has detected a low voltage signal on the pressure sensor circuit for the alternative fuel tank designated as Tank B. This low signal falls below the expected range for the current operating conditions, which can be caused by a faulty sensor, wiring issues, or low actual pressure in the tank.

DTC codes / P2Axx · Hybrid propulsion / P2A43

P2A43Alternative Fuel Tank B Pressure Sensor Circuit Low

P2A43 indicates that the powertrain control module has detected a low voltage signal on the pressure sensor circuit for the alternative fuel tank designated as Tank B. This low signal falls below the expected range for the current operating conditions, which can be caused by a faulty sensor, wiring issues, or low actual pressure in the tank.

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.