What does code P2AEA mean?

DTC codes / P2Axx · Hybrid propulsion / P2AEA

P2AEAIntake Air O2 Sensor Pumping Current Trim Circuit Low Bank 2

P2AEA means the engine computer has detected that the pumping current trim circuit for the intake air oxygen sensor on bank 2 is reporting a voltage or current below the expected range. This sensor is a wideband air-fuel ratio sensor mounted before the catalytic converter, and the low trim signal indicates the sensor's internal pump cell is not drawing the current the computer commands.

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.