How To Turn Off Check Engine Light

The check engine light comes on when your car s computer detects an issue within the powertrain.

How to turn off check engine light. The best way to turn off the check engine light is to fix whatever problem has caused it to come on in the first place. The code will be a series of letters and numbers. If the check engine light returns. If the check engine light comes back on then there is still an issue with your car.

It can be used to retrieve stored trouble code s clear trouble code s and turn off the check engine light read live streaming engine data on some models. Pulling off the fuse. To disconnect the scan tool turn the ignition key to the off position and then disconnect the tool. My check engine light was staying on so i replaced the gas cap but the light was still on so i took the ground cable loose from my battery pressed the horn for 30 seconds and i waited for 15 minutes to reconnect the cable to the battery.

Here s a tip that a lot of people don t know. The check engine light can come back on within minutes days weeks or months. The safest and best way to turn off the light is with a scanner. One of the possible ways of getting your check light to go off is by pulling off the engine control unit s fuse.

Part 6 of 6. Once i did that my check engine light is now off. A check engine light that comes back on is an indication of a more in depth problem. On very new vehicles this won t erase the check engine light at all causing you to think there is still a problem.

If the problem that caused the light is fixed the light will eventually go off by itself. You may buy a scan tool at your local auto parts store. Once the lights on the dash come on turn off all the vehicle s accessories like the radio. The reason why the check engine light comes on is because the car has failed some type of test.

That kind of stuff. Whether that is a continuous monitor like misfires or engine timing or non continues monitor like the catalyst or the evap system or air fuel ratio. In this case if you don t know how to reset check engine light here are 4 useful way for you. Even if you were able to turn it off by clearing the codes or disconnecting the battery if what caused the light to come on hasn t been corrected it probably won t stay off for very long.

Can check engine light turn itself off. Then press the read button on the scanner to access the check engine light code. Most of drivers feel annoying when they see the check engine light still turn of even the car problem was solve. The simplest and safest way to turn off the check engine light is by using an obd ii trouble code scan tool.