Every car sold in the US since 1996 is required to be equipped with an OBD-II connector so all scan tools, and in some cases state inspection computers, can connect to them and read data. There are general requirements for where the connector is, but sometimes they’re not in the most obvious locations. The OBD-II connector is generally located under the driver’s side of the dashboard. Sometimes it’s behind a little cover, sometimes it’s tucked a little bit behind a panel, but usually they’re mostly out in the open.
However, there are times when it’s in a different location. For instance, the 1997-2001 Honda CR-V has the connector on the passenger side of the center console under the dashboard. To help find it, on the underside of the steering column is this label describing its location, so if you’re having trouble finding it, try to find one of these labels.
If you can’t seem to find it anywhere, try this OBD-II Connector Locator I just found. It has pictures of the location on most cars.
Mechanical Malarkey stickers available for $5 anywhere in the US!