What does code P2A42 mean?

Q: What does code P2A42 mean?

Alternative Fuel Tank B Pressure Sensor Range/Performance. P2A42 indicates that the powertrain control module has detected an out-of-range or erratic signal from the pressure sensor mounted on the alternative fuel tank designated as Tank B. The computer compares the sensor voltage against expected values for the current operating conditions and flags the code when the signal falls outside the acceptable performance window for a calibrated period.

DTC codes / P2Axx · Hybrid propulsion / P2A42

P2A42Alternative Fuel Tank B Pressure Sensor Range/Performance

P2A42 indicates that the powertrain control module has detected an out-of-range or erratic signal from the pressure sensor mounted on the alternative fuel tank designated as Tank B. The computer compares the sensor voltage against expected values for the current operating conditions and flags the code when the signal falls outside the acceptable performance window for a calibrated period.

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.