What does code P2446 mean?

Q: What does code P2446 mean?

Secondary Air Injection System Pump Stuck On (Bank 2). P2446 means the powertrain control module (PCM) has commanded the secondary air injection (SAI) pump for bank 2 to turn off, but the pump's feedback circuit still indicates that current is flowing through the pump motor. The computer sees the air pump running when it should be at rest, which can push extra air into the exhaust at the wrong time and skew emissions control.

DTC codes / P24xx · Auxiliary emission controls / P2446

P2446Secondary Air Injection System Pump Stuck On (Bank 2)

P2446 means the powertrain control module (PCM) has commanded the secondary air injection (SAI) pump for bank 2 to turn off, but the pump's feedback circuit still indicates that current is flowing through the pump motor. The computer sees the air pump running when it should be at rest, which can push extra air into the exhaust at the wrong time and skew emissions control.

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.