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What are OBDII Emission Checks?
If your Volvo is model year 1996 or newer, various states are now requiring a test of the vehicle’s "Onboard Diagnostic System” (sometimes called OBDII) as part of their motor vehicle inspection program. This test checks to see if there are Diagnostic Trouble Codes (or DTCs) stored within the electronic emission control system. States are doing this now in order to meet Federal Clean Air Standards.
OBDII is a comprehensive part of your vehicle’s Engine Management System. The monitors within OBDII indicate when the emission system is functioning properly. It also provides a fault code to help identify a malfunctioning system or component. This eliminates the traditional tail pipe exhaust gas test and speeds up the inspection process.
