Technical Definition:
Secondary Air Injection System Switching Valve Stuck Open (Bank 1)
Trouble Code: P2440
Address: 0x2440
System: Powertrain
Subsystem: Auxiliary Emission Controls
Address: 0x2440
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:
Possible Causes:
Possible Symptoms:
Secondary Air Injection System Switching Valve Stuck Open
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– 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