What does code P2AEE mean?

Q: What does code P2AEE mean?

Intake Air O2 Sensor Pumping Current Circuit High Bank 2. P2AEE indicates that the powertrain control module (PCM) has detected an abnormally high current in the pumping circuit of the intake air oxygen sensor on bank 2. This sensor is a wideband air-fuel ratio sensor that uses a pump cell to maintain a reference atmosphere, and the PCM monitors the current required to keep that pump cell balanced. A high current reading means the circuit is drawing more current than expected, which can be caused by a short to voltage, a faulty sensor, or a wiring issue.

DTC codes / P2Axx · Hybrid propulsion / P2AEE

P2AEEIntake Air O2 Sensor Pumping Current Circuit High Bank 2

P2AEE indicates that the powertrain control module (PCM) has detected an abnormally high current in the pumping circuit of the intake air oxygen sensor on bank 2. This sensor is a wideband air-fuel ratio sensor that uses a pump cell to maintain a reference atmosphere, and the PCM monitors the current required to keep that pump cell balanced. A high current reading means the circuit is drawing more current than expected, which can be caused by a short to voltage, a faulty sensor, or a wiring issue.

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.