What does code P2AEC mean?

Q: What does code P2AEC mean?

Intake Air O2 Sensor Pumping Current Circuit Open Bank 2. P2AEC indicates that the powertrain control module has detected an open circuit in the pumping current path of the intake air oxygen sensor on bank 2. This sensor is a wideband air-fuel ratio sensor that uses a pump cell to measure oxygen concentration, and an open circuit prevents the controller from accurately reading the exhaust oxygen content.

DTC codes / P2Axx · Hybrid propulsion / P2AEC

P2AECIntake Air O2 Sensor Pumping Current Circuit Open Bank 2

P2AEC indicates that the powertrain control module has detected an open circuit in the pumping current path of the intake air oxygen sensor on bank 2. This sensor is a wideband air-fuel ratio sensor that uses a pump cell to measure oxygen concentration, and an open circuit prevents the controller from accurately reading the exhaust oxygen content.

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.