OBD-II code · Powertrain (generic, extended)
P2445 Secondary Air Injection System Pump Stuck On (Bank 1)
The secondary-air pump continues to run after the cold-start window, when the ECU has commanded it off. Usually a stuck-closed relay welding the pump permanently to battery voltage.
Is it safe to drive with P2445?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump relay stuck closed
- PossibleDrive line shorted to supply
- Less likelyCarbon or debris buildup preventing free movement
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Secondary Air Pump, Secondary Air Pump Relay
Related codes
- P2444Secondary Air Injection System Pump Stuck Off (Bank 1)
- P2442Secondary Air Injection System Switching Valve Stuck Open (Bank 2)
- P2443Secondary Air Injection System Switching Valve Stuck Closed (Bank 2)
- P2446Secondary Air Injection Pump Stuck Off (Bank 2)
- P2447Secondary Air Injection Pump Stuck On (Bank 2)
- P2448AIR System High Air Flow Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.