P2443 LEXUS - Secondary Air Injection System Switching Valve Stuck Closed Bank 2
P2443 LEXUS Possible Causes
- 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
First diagnose P2443 LEXUS code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P2443 LEXUS code
Labor: 1.0The cost of diagnosing the P2443 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P2443 LEXUS Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2443 Lexus DescriptionTo accelerate the activation of catalyst when warming up the engine, the air injection system pumps the secondary air to the exhaust manifold by pressure. The secondary air is supplied by the air pump and it is pumped to the exhaust manifold through the air switching valve. Open and close movement of the air switching valve is regulated by the Vacuum Switching Valve (VSV).The air pump and the air switching valve are observed by the Engine Control Module (ECM) and are used to detect malfunction in this system. The ECM monitors the secondary air injection system and detects malfunction using a pressure sensor located on the air switching valve.
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.
P2443 LEXUS More InformationNeed more information on how to fix the P2443 LEXUS code?
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