I went to connect my obd auto scanner to a 2004 aveo and could not locate the obd port to connect it to? Where is it? Usually its under the dash board...I thought

https://play.google.com/store/apps/details?id=com.outilsobdfacile.obd.connecteur.dlc&hl=en

The OBD-II port is usually located under the dashboard, beneath the steering wheel column (1 - 3 in the diagram below). If not located beneath the steering column, look for the port in the areas indicated by numbers

https://www.verizonwireless.com/support/knowledge-base-210135/

The most likely location will be it the driver's side foot well. It will be in the top right corner under the dash at about knee height. There might be a small cover hiding the port.
Yours might have the square cornered, older OBD connector so the newer OBD2 scanner's wire might not fit. You can get adapter wires cheaply enough.

Read your question

NO VEHICLE

Should be under the dash-drivers side

98% by law have to be-- on OBD 2 vehicles

There should be two OBD ports on this vehicle, one under the steering wheel the other is located by the computer unit under the hood. Attach an OBD reader or OBD II Reader (available to be borrowed from most car part stores) and read the code.

It should be under the dash located under the steering wheel, approximately centered. It may or not have a cover protecting the contacts.

The connector is located on the drivers side just above the parking brake pedal.

Hope this helps.

Zeppelinx12

first you have a plug is under the dash are under the hood give these websites a try www.alldatadiy.com and www.autozone.com if you have a autozone or a advance auto parts near you they will test it for free wish you the best of luck Michigan Man.

uk model drivers side look under dash near accelerator pedal -white plug

On a 1995 model you should have OBD II codes. Which means you can buy a scanner that plugs in to a clip usually located under driver side dash. If you don't want to buy the scan tool Advance Auto or Auto zone can read these codes for you while you visit the store and is free.

2004 Chevy Aveo LS, the OBD-II connector is against the panel closest to the driver's knees above the brake pedal.