P2441 code meaning
AIR System Switching Valve Stuck Closed (Bank 1)
Powertrain system Generic code P24xx codes Check engine light
What P2441 means
P2441 flags a bank 1 secondary air valve that does not open when commanded, so pump air never reaches the exhaust ports. Toyota documents it on 2005–2009 4.7L V8 (2UZ-FE) models such as 4Runner, Sequoia, Tundra and Land Cruiser: bulletin T-SB-0230-12 traces it to debris from the air pump contaminating the valves and lists it next to faults of the No. 2 valves. Subaru names P2441 for the 2011–2015 WRX STI and tells technicians to run the diagnosis for the opposite bank as well, since the root cause may sit there. On systems with a pressure sensor the duct pressure then rises unusually high while the oxygen sensor sees no extra air. Seized valves, a faulty actuator and carbon build-up are common causes. P2440 is the stuck-open partner, P2443 the bank 2 code.
P2441 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P2441
- Check engine lamp after a cold start
- Higher cold-start emissions, failed readiness check
Common causes of P2441
- Most likelyValve seized closed by debris or corrosion
- PossibleValve actuator, control solenoid or vacuum supply faulty
- Less likelyKinked or collapsed air hose downstream of the valve
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Secondary air switching valveSecondary air vacuum lines
What each part of P2441 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). |
| 41 | The exact fault in that area. |
What to do next
- Note P2441 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 P2441
What does P2441 mean?
P2441 means "AIR System Switching Valve Stuck Closed (Bank 1)". P2441 flags a bank 1 secondary air valve that does not open when commanded, so pump air never reaches the exhaust ports. It is a generic code, so it means the same on every make.
Is it safe to drive with P2441?
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 P2441 fail an emissions test?
Yes, it can. P2441 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 P2441 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2441 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.