P2445
AIR System Pump Stuck Off Bank 1
Secondary air injection (emissions)
Generic OBD-II
Low
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.
Low
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.
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?+
Yes. The pump only assists cold-start emissions, so the car runs normally, but fix it to pass an emissions test.
Can I just clear P2445?+
It will return the next time the secondary-air monitor runs unless the pump or its circuit is repaired.
Related codes
Often seen with P2445
Read & clear P2445 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX