Plug your car code reader into the diagnostic link connector under the dash (engine off). Then start the vehicle and follow the auto code reading procedure in the instruction manual. Nothing can knock your day off track faster than a “Check Engine” light popping up on your dash.

Where is my diagnostic port?

The OBD-II port is usually located under the dashboard, beneath the steering wheel column (1 - 3 in the diagram below).

Does my car have an OBD2 port?

All cars and light trucks built and sold in the United States after January 1, 1996 were required to be OBD II equipped. There will be a note on a sticker or nameplate under the hood stating OBD II compliant or OBD II Certified.

What can OBD diagnose?

What problems does the OBD system detect?Fuel Systems.Engine Misfires.Emissions Control Systems.Vehicle/Speed Idling Controls.Computer Systems.Transmission Systems.Others related to vehicle body & chassis etc such as Seat-belt, Airbags etc.11 Oct 2017

Does AutoZone run free diagnostics?

Many drivers dont realize that AutoZone, the nations largest auto parts chain, will do the following services free of charge: Read the codes on your check engine light. Test your batterys voltage.