Where to check engine codes on 2000 s10?

1. Locate the diagnostic port. The diagnostic port is usually located under the dashboard on the driver's side. It is a rectangular connector with 16 pins.

2. Connect a scan tool to the diagnostic port. A scan tool is a device that can read and clear trouble codes from the vehicle's engine control unit (ECU).

3. Turn on the ignition and scan for codes. The scan tool will display any trouble codes that are stored in the ECU.

4. Look up the trouble codes. You can find a list of trouble codes and their meanings in your vehicle's owner's manual or online.

5. Clear the trouble codes. Once you have diagnosed and repaired the problem, you can clear the trouble codes from the ECU.