- 1). Locate the OBD reader port on the underside of the driver's side dashboard to the left of the steering column. Plug the OBD reader's cable into this port. You may have to rotate it to make it fit into the port because it only plugs into it in one direction. Just make sure you don't force it in or you may damage the pins inside.
- 2). Put the key into the ignition and turn it toward you one click to the "ACC" or accessories position.
- 3). Turn the power switch on the OBD reader to the "on" position. Wait while the reader interfaces with the computer. When it has finished, it will display the alphanumeric trouble codes on the reader's screen. Write down these codes and look up their meanings in the OBD reader's manual.
- 4). Unplug the OBD reader from the port and turn off the vehicle. Have any necessary repairs or servicing done based on the diagnostic codes you retrieved.
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