1
Pull the release lever to open the hood from inside the vehicle automotive diagnostic tool. The lever is situated underneath the steering wheel on the dashboard.
2
Open the hood and place the support rod into position to prop up the hood.
3
Remove the nut connecting the negative battery terminal to the battery, using an open end wrench.
4
Allow the computer to reset. This will take roughly 30 minutes.
5
Reconnect the negative terminal to the battery. Tighten the bolt using an open end wrench.
6
Close the hood and start the engine. If the check engine light re-appears, there is still a problem with the engine that must be addressed.
