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Where Is the OBD II on a 1999 Mercury Cougar

Where Is the OBD-II on a 1999 Mercury Cougar?

The 1999 Mercury Cougar has two engine options. The base engine is a 2.0-liter, in-line four-cylinder, which produces 130 horsepower. The optional engine is a 170-horsepower 2.5-liter V-6. No matter the engine size, the 1999 Cougar has an on-board diagnostic (OBD) computer with an OBD-II port.


    The OBD-II port is sometimes difficult to find on certain vehicles. However, the Cougars OBD-II diagnostic port is easy to find. It is located on the drivers side, under the dashboard and to the drivers side of the steering wheel.


    The OBD-II port is where an OBD-II scanner can be plugged in. This scanner gathers all of the information from the vehicles computer and displays it on a screen. Some computers even have testing functions for certain components.


    On-board diagnostics started back in 1982 in California when the California Air Resources Board began creating regulations that required all vehicles to have an on-board diagnostic system -- now known as OBD-I -- to sense emission system failures. In 1996 the Federal Government followed suit by making the more-universal OBD-II required on all vehicles.