AIR System Pump Stuck Off Bank 1
What it means
P2445 means the Bank 1 secondary air injection pump was commanded on but the system saw no airflow — the pump appears stuck off. Because this pump only runs briefly at cold start to reduce emissions, the car drives normally, but the fault must be fixed for the emissions monitor to pass.
Can I keep driving? Safe to drive — the secondary air pump only runs at cold start for emissions, so day-to-day driving is unaffected, but the fault should be fixed to pass emissions.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Usually no change in how the vehicle drives
- No air-pump sound at cold start
- May fail an emissions test
Common causes
Most likely first
- Failed secondary air injection pump on Bank 1Likely
- Blown pump fuse or faulty air-pump relayCommon
- Open or corroded wiring/connector to the pumpCommon
- Seized pump from water or carbon ingestionLess often
- Stuck or clogged air switching/check valveLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and confirm the pump is commanded on but not moving air.
- Check the air-pump fuse and relay.
- Verify power and ground reach the pump when commanded.
- Inspect the check valve and plumbing for carbon or water damage.
- Replace the air pump if it fails to run with good power and ground, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2445?+
Can I just clear P2445?+
Related codes
Read & clear P2445 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.