If the problem has been diagnosed and fixed but the check engine light is still on, either use an auto scan tool or simply disconnect and reconnect the battery. If there is still a problem with the engine, disconnecting ... More »

Do a hard reset of the check-engine light by disconnecting the battery, turning on the car lights and pressing the horn. Wait a few minutes, and reconnect the battery. This causes the check-engine light to go out tempora... More »

To reset the check engine light on a Dodge, open the hood, disconnect the battery, turn all of the lights on, honk the horn to exhaust the residual power, and reconnect the battery. This 30-minute procedure requires the ... More »

Services offered by Salvo Auto Parts include "check engine light" diagnostic testing, battery installation, alternator and starter testing, wiper blade installation and tool lending. Salvo Auto Parts also offers free sam... More »

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The check engine light illuminates on a Mazda to indicate the powertrain control module has detected a problem in the engine or transmission of the vehicle. The powertrain control module is a computer that manages the ve... More »

The only ways to reset the check engine light on a Dodge Neon are to use an onboard diagnostics tool or to disconnect the battery. Although disconnecting the battery resets the check engine light in most cases, most mech... More »

Some items to put on a checklist for preventative auto maintenance include check fluid levels, check and change the car's oil regularly, check battery, clean the contacts and replace engine's air filter. Car owners can h... More »