You're going to have to be more specific with your question. There are many components to the emissions control system.
Emissions.
VSC=Vehicle Stability Control, or basically traction control system
An emissions control system is typically going to refer to a system that limits certain pollutants (emissions) given off by a vehicle. A catalytic converter is one example.
The 2003 Cadillac DeVille typically has two catalytic converters. One is located on each side of the exhaust system, as the vehicle is equipped with a V8 engine. These converters are part of the vehicle’s emissions control system, helping to reduce harmful exhaust emissions.
The flex pipe in a Toyota Highlander is a flexible section of the exhaust system that accommodates engine movement and vibrations while helping to reduce noise and exhaust emissions. It is typically located between the exhaust manifold and the catalytic converter, allowing for slight movements of the engine without causing stress on the exhaust components. This design helps prevent cracks and leaks in the exhaust system, contributing to overall performance and longevity.
Have vehicle scanned to determine the problem - usually in the emission control system,
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
Have vehicle scanned to determine the problem - usually in the emission control system,
it's talking about the emissions system. it is probably just a loose gas cap
The evaporative emissions control system (EVAP) on a 2010 Honda Civic is typically located in the fuel tank and includes components such as the charcoal canister, fuel vapor lines, and the purge valve. The charcoal canister is usually mounted near the rear of the vehicle, close to the fuel tank, while the purge valve is located in the engine compartment. This system is designed to capture and store fuel vapors from the fuel tank, preventing them from being released into the atmosphere.
Electronic Vacuum Regulator which is part of the EGR emissions control system.
I have a 2000 I30 and there is a map/diagram of the emissions control system including the EGR system on the underside of the hood placed there presumably by the manufacturer.