P2441 TOYOTA - Secondary Air Injection System Switching Valve Stuck Closed Bank 1
- Faulty Vacuum Switching Valve (VSV)
- Vacuum Switching Valve (VSV) harness is open or shorted
- Vacuum Switching Valve (VSV) circuit poor electrical connection
- Faulty Pressure Sensor
- Faulty Air Switching Valve
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When is the code detected?
If the Engine Control Module (ECM) receives the pulsation signal from the sensor despite the ECM ordering the VSV to close the air switching valve, or if the ECM has not received the signal from the sensor despite the ECM ordering the VSV to open the valve, the ECM interprets this as a fault in the secondary air injection system and the code is set.
- Engine Light ON (or Service Engine Soon Warning Light)
P2441 TOYOTA Description
The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system. The sensor detects an exhaust pressure in the secondary air passage.
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