P2445AIR System Pump Stuck Off (Bank 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2445 reports that the secondary air pump delivers no air although it is commanded on. Toyota and Lexus use it on several trucks: on 2UZ-FE 4.7L models (T-SB-0230-12, revised in 2013 to include P2445), on the 2010–2013 GX 460 (L-SB-0028-14) and on the 2012 Tacoma with the 1GR-FE (T-SB-0033-17). When the memory holds just P0418, P2445 or both, Lexus replaces the pump together with both switching valves, since debris from the pump may already have reached them. Typical root causes are moisture or debris that seizes the pump, a blown fuse, or a failed relay or driver. Unlike P2444, the pump stays silent at cold start. The engine runs normally, but cold-start emissions rise and the readiness check fails. P2447 is the bank 2 equivalent.
- What you may notice
- Check engine lamp after a cold start
- No pump noise directly after a cold start
- Often stored together with P0418
- Likely causes
- LikelyPump seized by moisture or debris from a damaged filter
- PossibleBlown pump fuse or failed pump relay
- PossibleOpen pump supply or ground, corroded plug
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.