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To disable the service engine light in a vehicle, use a scan tool, or disconnect the car's battery. It is easier and safer to use a scan tool, though without one, the process generally takes 20 to 30 minutes.


The best way to turn off the check engine light on a Nissan is to find out the engine code and have the problem fixed. The check engine light turns off automatically when the issue causing the light to turn on is resolved.


When the Check Engine light on a car is illuminated, it indicates the onboard diagnostic computer has detected a problem with the vehicle's emission system. The problem is due to a variety of conditions, ranging from a loose gas cap to serious engine problems.


Although the exact causes vary depending on the type of vehicle, the most common cause of the check engine light coming on is a faulty oxygen sensor. A loose gas cap also causes the check engine light to turn on, so owners should check this first.


To turn off the check engine light in a car, either bring the car in to a mechanic or use a trouble code scanning tool, then fix the problem that is causing the light to be illuminated. If the light stays on and there is no problem with the engine, then disconnect the b...


The check engine light may come on for various reasons including if the gas cap is loose, oxygen sensor needs replacing, spark plugs need replacing and catalytic converter has a problem. It is a good idea to check the engine when this light comes on because it usually i...


Clear a check engine light by disconnecting the battery cables and turning on the headlights to drain all of the electricity from the system. This makes the vehicle's computer perform a hard reset and extinguishes the check engine light. However, if a problem is present...