P2445 Code: Secondary Air Injection System Pump Stuck Off Bank 1

The secondary air injection (SAI) system supplies air to the exhaust manifold or catalytic converter, which is needed to kickstart the oxidizing process. This system is also called air injection reaction (AIR). A typical SAI system has a smog or thermactor pump that the powertrain control module (PCM) controls. If the PCM detects an issue with the SAI pump, it will store a P2445 trouble code.

What Does the P2445 Code Mean?

Diagnostic trouble code (DTC) P2445 stands for “Secondary Air Injection System Pump Stuck Off Bank 1.”

The SAI pump can be electric or belt-driven from the crankshaft pulley. It uses an external filter to draw fresh air into the engine, injecting slight pressure to each exhaust port through hoses or the manifold.

The output of the SAI pump is then sent to the catalytic converter to oxidize unburned hydrocarbons (HCs) and carbon monoxide (CO). It breaks these elements down to water vapor and carbon dioxide.

Note: The definition of code P2445 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P2445 Code?

• Clogged or disconnected vacuum hose
• Secondary air pump control valve failure
• Faulty secondary air pump
• Wiring issues
• Powertrain control module failure or software in need of an update

What are the Common Symptoms of the P2445 Code?

• Illuminated check engine light
• Vehicle stuck in “limp” mode

How to Diagnose the P2445 Code

DTC P2445 is a generic powertrain code that vehicles with an on-board diagnostics (OBD-II) system can log. While this might be the case, keep in mind that the steps for diagnosis and repair can vary, depending on vehicle specifications.

Diagnosing trouble codes such as this one can involve using certain tools and conducting visual inspections that require advanced technical knowledge. If you’re not familiar with the diagnostic process, it’s best to have a certified mechanic do the job for you.

But if you have a lot of experience with diagnosing trouble codes, then you can go ahead and do it yourself. To help you out, here is a video that shows what the process usually involves.

How to Fix the P2445 Code

Attempting to fix a P2445 trouble code can be frustrating and confusing, especially without the right tools and automotive know-how. Under these circumstances, it might be best to bring your vehicle to the nearest auto repair shop and let the pros get the job done. This will ensure that all steps and protocols are followed correctly.

But if you think you can handle fixing the problem on your own, then you probably know that there’s no such thing as a magic bullet that will fix all trouble codes for all types of vehicles. Before you proceed, you might want to check out guides like those from Chilton or an ALLDATA subscription to get vehicle-specific repair information.