P2445 code meaning
AIR System Pump Stuck Off (Bank 1)
Powertrain system Generic code P24xx codes Check engine light
What P2445 means
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.
P2445 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P2445
- Check engine lamp after a cold start
- No pump noise directly after a cold start
- Often stored together with P0418
Common causes of P2445
- Most likelyPump seized by moisture or debris from a damaged filter
- PossibleBlown pump fuse or failed pump relay
- PossibleOpen pump supply or ground, corroded plug
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Secondary air pumpSecondary air pump relay
What each part of P2445 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 4 | Area: auxiliary emission controls (catalytic converter, EGR, EVAP). |
| 45 | The exact fault in that area. |
What to do next
- Note P2445 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2445
What does P2445 mean?
P2445 means "AIR System Pump Stuck Off (Bank 1)". P2445 reports that the secondary air pump delivers no air although it is commanded on. It is a generic code, so it means the same on every make.
Is it safe to drive with P2445?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2445 fail an emissions test?
Yes, it can. P2445 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2445 to fix?
Difficulty: medium. A typical repair takes 0.3 to 3 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2445 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.