Additional emissions regulation

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen Jetta, 2004 Volkswagen Jetta, 2003 Volkswagen Jetta, 2003 Volkswagen Golf, and 2002 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC TROUBLE CODE (DTC) - P0411

SAE - DTC	VAG Code	DTC text	Corrective action
P0411	16795	Secondary Air Injection System Incorrect Flow Detected	Check Secondary Air Injection (AIR) Pump Motor -V101-, see SECONDARY AIR INJECTION SOLENOID VALVE, CHECKING Check hoses and connecting pipes to and between components, see SECONDARY AIR INJECTION SYSTEM COMPONENTS, REMOVING AND INSTALLING . Vehicles with engine code AEG: Check Secondary Air Injection (AIR) Solenoid Valve -N112-, see SECONDARY AIR INJECTION SOLENOID VALVE, CHECKING Check combination valve, see COMBINATION VALVE, CHECKING

DIAGNOSTIC TROUBLE CODE (DTC) - P0412-P0422

SAE - DTC	VAG Code	DTC text	Corrective action
P0412	16796	Secondary Air Injection System Switching Valve "A" Circuit	Check Secondary Air Injection (AIR) Solenoid Valve -N112-, see SECONDARY AIR INJECTION SOLENOID VALVE, CHECKING
P0413	16797	Secondary Air Injection System Switching Valve "A" Circuit Open
P0414	16798	Secondary Air Injection System Switching Valve "A" Circuit Shorted
P0418	16802	Secondary Air Injection System Control "A" Circuit	Check activation of Secondary Air Injection (AIR) Pump Relay - J299-.
P0420	16804	Catalyst System Efficiency Below Threshold, Bank 1	Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC), see OXYGEN SENSOR (O2S) AND OXYGEN SENSOR CONTROL BEFORE THREE WAY CATALYTIC CONVERTER (TWC) Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC), see OXYGEN SENSOR AND OXYGEN SENSOR CONTROL BEHIND THREE WAY CATALYTIC CONVERTER (TWC), CHECKING Check catalytic converter, see 26 EXHAUST SYSTEM, EMISSION CONTROLS
P0422	16806	Main Catalyst Efficiency Below Threshold, Bank 1

DIAGNOSTIC TROUBLE CODE (DTC) - P0440-P0456

SAE - DTC	VAG Code	DTC text	Corrective action
P0440	16824	Evaporative Emission System	Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-, see 20 FUEL SUPPLY EVAP canister system, check for proper seal, see 20 FUEL SUPPLY
P0441	16825	Evaporative Emission System Incorrect Purge Flow
P0442	16826	Evaporative Emission System Leak Detected (small leak)
P0444	16828	Evaporative Emission System Purge Control Valve Circuit Open
P0445	16829	Evaporative Emission System Purge Control Valve Circuit Shorted
P0455	16839	Evaporative Emission System Leak Detected (large leak)
P0456	16840	Evaporative Emission System Leak Detected (very small leak)