P2441: Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)
7 vehicles · 3 makes · $300-$3,000 repair
Most Reported On
P2441 is an OBD-II diagnostic trouble code meaning “Secondary Air Injection System Switching Valve Stuck Closed (Bank 1).” P2441 indicates the secondary air injection system switching valve on bank 1 is stuck closed. The secondary air injection system pumps fresh air into the exhaust during cold starts to help the catalytic converter heat up and burn off pollutants faster; a switching valve controls that airflow. When the PCM commands the valve open but airflow doesn't occur as expected, it concludes the valve is stuck closed. This mainly affects cold-start emissions and will fail an emissions test, though drivability is usually normal. This code is most commonly reported on 2003-2009 Lexus GX (GX470), 2008-2019 Toyota Sequoia, and 2008-2021 Toyota Land Cruiser, plus 4 other vehicles, with repair costs ranging from $300 to $3,000.
Common Causes
Typical Repair Cost
Based on 8 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P2441, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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Vehicles Affected (7)
Secondary Air Injection Pump Failure (3UR-FE/i-FORCE)
Secondary Air Injection Pump Failure (200 Series)
Secondary Air Injection System Failure (100-Series, 4.7L V8)
Secondary Air Injection Pump and Switching Valve Failure on 4.0L V6
Secondary Air Injection Pump/Valve Failure Triggering Limp Mode on 4.7L V8
FAQ
What does P2441 mean?
P2441 stands for "Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)." P2441 indicates the secondary air injection system switching valve on bank 1 is stuck closed. The secondary air injection system pumps fresh air into the exhaust during cold starts to help the catalytic converter heat up and burn off pollutants faster; a switching valve controls that airflow. When the PCM commands the valve open but airflow doesn't occur as expected, it concludes the valve is stuck closed. This mainly affects cold-start emissions and will fail an emissions test, though drivability is usually normal.
What are the most common causes of P2441?
The most common causes of P2441 are: Stuck or seized secondary air switching valve (bank 1), Carbon or rust buildup clogging the valve or air passages, Failed vacuum/control solenoid for the valve, Damaged vacuum lines or electrical connector to the valve, Faulty secondary air injection pump, Wiring fault in the valve control circuit, Moisture/corrosion in the air injection plumbing. The specific cause varies by vehicle.
How much does it cost to fix P2441?
Repair costs for P2441 range from $300 to $3,000, depending on the vehicle and root cause.
Which vehicles are affected by P2441?
Au7o has documented P2441 across 7 vehicle models from 3 manufacturers: Lexus, Subaru, Toyota.
Sources (4)
- owner-reportCarComplaints.com — Subaru Impreza owner complaints (includes WRX/STI years; search within for secondary air injection pump/valve failures and related CEL codes)
- videoYouTube - Secondary Air Injection Pump Replacement on 1998-2007 Toyota Land Cruiser by 4WD Mechanix
- TSBToyota Warranty Enhancement Program ZE3 for Secondary Air Injection System
- ForumTacomaWorld secondary air injection pump/valve failure thread
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.