- 1). Find the diagnostic port located under the dashboard and under the heating controls. Plug the connector end of the diagnostic code scanner into this port. Don't push it in too forcefully; just turn it until it fits. If you force it, you may bend the pins inside the plug.
- 2). Put the key into the ignition and turn it to "Run," but don't start the engine. This will power on the diagnostic code scanner.
- 3). Press "Scan for Trouble Codes" on the scanner. Wait for the scanner to do its work. When it has finished, press "Clear All Trouble Codes." Turn off the vehicle and disconnect the diagnostic code scanner. Wait a minute or two.
- 4). Turn on the engine and examine the instrument panel to make sure the check engine light has turned off. If it has not, the problem that triggered the light remains and needs to be fixed.
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