The diagnostic plug is under the dash on the driver side.
left side of the dash under the steering wheel
In a 2006 Kia Sedona, the OBD (On-Board Diagnostics) port is typically located under the dashboard on the driver's side. It is positioned near the steering column, generally above the pedals, and may be slightly obscured by trim. You may need to bend down or use a flashlight to easily spot it.
The 2005 Kia Amanti OBD 2 port is under driver side dash next to steering column
Im not sure about older year models, but on my 2004 the OBD II port is under the dash lip by my right knee. If I get out and squat down I can see it just fine.
The 2007 Kia Optima OBD 2 port is right under driver side instrument panel near center console
The OBD II port on a 2008 Kia Rio is located under the dash, near the hood release. It allows for easy diagnostics of the vehicle.
The 2001 Kia Rio OBD 2 port is on lower dash above accelerator pedal
The 2004 Honda Civic OBD 2 port is behind kick panel; above accelerator pedal
The diagnostic connector on a Kia Sedona is typically located under the dashboard on the driver's side. It can usually be found near the steering column, often just above the brake pedal. You may need to remove a cover or panel to access it. This OBD-II port allows for vehicle diagnostics and is used by mechanics to read trouble codes.
The 2004 Hyundai Elantra OBD 2 port is on lower edge of dash between steering column & hood release
The 2004 Volkswagon Bettle OBD 2 port is on lower edge of dash at left side