What does code P2447 mean?

Q: What does code P2447 mean?

Secondary Air Injection System Pump Stuck Off (Bank 2). P2447 indicates that the powertrain control module (PCM) has commanded the secondary air injection (SAI) pump for bank 2 to run, but the pump did not respond or the system did not detect the expected pressure or airflow change. The PCM monitors the SAI system during cold starts and sets this code when the pump circuit or mechanical pump fails to activate, meaning the pump is stuck in the off position.

DTC codes / P24xx · Auxiliary emission controls / P2447

P2447Secondary Air Injection System Pump Stuck Off (Bank 2)

P2447 indicates that the powertrain control module (PCM) has commanded the secondary air injection (SAI) pump for bank 2 to run, but the pump did not respond or the system did not detect the expected pressure or airflow change. The PCM monitors the SAI system during cold starts and sets this code when the pump circuit or mechanical pump fails to activate, meaning the pump is stuck in the off position.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.