Skip the auto shop - Our mechanics make house calls

P2447 OBD-II Trouble Code: Secondary Air Injection System Pump Stuck off Bank 2

Check Engine Light

P2447 code definition

Secondary Air Injection System Pump Stuck off Bank 2

What the P2447 code means

P2447 is an OBD-II generic code for the engine control module (ECM) detecting the bank 2 secondary air injection pump stuck in the off position when it is commanded on.

What causes the P2447 code?

  • The engine control module (ECM) monitors the secondary air injection pump circuits and has detected the pump for bank 2 is not turning on when commanded on.

  • The code is set when the air injection system pump for bank 2 will not turn on and is stuck in the off position.

What are the symptoms of the P2447 code?

The vehicle will not run any different in most cases. Here are some possible symptoms that may occur:

  • The Check Engine Light will be illuminated and the code is set in ECM memory as a fault.

  • The exhaust may not burn off excessive fuel without the air pump working and may clog the exhaust catalyst faster.

  • The vehicle will fail emissions tests.

How does a mechanic diagnose the P2447 code?

  • Scans for codes and documents the code in the ECM, and then look at the freeze frame data for the problem before clearing the codes and retesting

  • Clears the codes and retest to verify the code returns

  • Scans and monitor pump when commanded to turn on to see if the pump runs

  • Tests the air pump to see if it is getting power and ground as per pinpoint tests

  • Tests wiring for shorts between power supply and the pump

  • Tests the pump for proper resistance following pinpoint test

Common mistakes when diagnosing the P2447 code?

  • Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired

  • Failing to clear the ECM codes after the codes are fixed

  • Failing to verify the failure before attempting testing and repairs

How serious is the P2447 code?

Code P2447 is an indication that the air injection system pump for bank 2 is not working. The exhaust emissions will be affected and will cause the vehicle to fail emission testing. The lack of added air to the exhaust stream will cause the catalyst to get sooted up quicker and will be harder to get burned off. This may lead to a clogged catalyst.

What repairs can fix the P2447 code?

  • Replacing the air pump for the secondary air injection system bank 2

  • Replacing the secondary air injection system pump relay

  • Repair wiring or connections to the air injection system as directed by pinpoint tests

Additional comments for consideration regarding the P2447 code

Code P2447 is for the secondary air injection pump for bank 2 and the exhaust potentially being clogged from too much soot build up on the catalyst on that side of the engine. This can cause a loss of power in some cases. The catalyst may have to be replaced after the pump is repaired if it cannot be cleared of soot.

Need help with a P2447 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...


Related questions

Q: I recently had a new stereo installed in my mirage, and now the airbag light is on. How do i reset it or get it to go out.

The Air Bag Light would set a code in the computer and should be checked by the dealer since you are still under factory warranty unless the stereo installer damaged the wiring or something to do with the airbag. I...

Q: Shuddering and check engine lights blink so

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Q: 2012 GMC Sierra 2500HD No Blend Door Working

Hello, you are going to need a diagnostic chart for this type of issues. The chart gives you a process to a path of repair or replacement for each code. When you have many system codes you would first check...