Learn How to Reset a Check Engine Light

Have you just completed a service and notice your check engine light is still on? Learning how to reset a check engine light by hand can help you get back on the streets of Camp Lejeune worry-free. Even if you don’t have an OBD2 scanner on hand, you can still reset the check engine light by disconnecting the negative battery cable. We’ll cover both methods below with the service experts at Marine Chevrolet!

If There Is a Problem, Have It Resolved

Before you get started, keep this in mind: you shouldn’t try to reset the check engine light unless you know for sure that your problem has been solved. Check the gas cap before you do anything else, as this can commonly cause a check engine light. This is because a loose cap allows fumes to escape, and these fumes tell your vehicle’s diagnostic systems that there’s a problem that needs addressing. If that doesn’t solve the problem on its own, it’s likely that there’s a deeper problem.

If there’s an underlying issue that needs to be resolved, the warning will come back on almost immediately after you reset the check engine light. In those cases, you’ll want to schedule service with Marine Chevrolet, located in Jacksonville, as you could be damaging your vehicle by driving.

How to Reset a Check Engine Light with an OBD2 Scanner

All new vehicles have an outlet that works with handheld diagnostic scanners that can identify issues and reset your onboard diagnostic systems. You can pick one up one of these scanners at our parts department and use it to reset the check engine light with the following steps:

1. Plug the scanner into your vehicle using the port below the driver’s side dashboard. 
2. Turn the key to the on position, but don’t start the car. You only need the electrical systems to turn on.
3. Give the scanner a few moments; it will soon display a code, or a list of codes. 
4. Look up the codes or call us at (910) 849-2225 for more information on what you’re seeing.
5. If you see a problem that needs fixing, schedule service or order the parts you need from our dealership.
6. If you’ve already solved the underlying issue, simply press and hold ERASE while the relevant code is selected.

How to Reset a Check Engine Light with the Negative Battery Cable

Resetting a check engine light in this way is somewhat trickier, and you will be resetting all electrical systems in your vehicle. In any event, disconnecting the negative battery cable is the easiest way to reset a check engine light without a scanner. Take these following steps to learn how to reset a check engine light without an ODB2 scanner:

1. Put on electricity-safe gloves and safety glasses.
2. After giving your vehicle time to cool, open the hood and locate the battery.
3. Remove any terminal covers and carefully loosen the negative connector. Don’t let the wrench touch both terminals at the same time.
4. When you can, pull the negative cable away from the battery. Hold it to the side for roughly 30 to 60 seconds, so any remaining power can expire.
5. Reconnect the cable and tighten everything back up!

These two processes can always reset your check engine light, but once again: if you haven’t resolved the underlying maintenance issue, your diagnostic systems will cause the light to come on as soon as you head back out on the roads of Richlands.

Our Service Team Would Be Glad to Assist You!

We know that few things are more frustrating than a check engine light that won’t turn off. Don’t let it get you down. Schedule service at Marine Chevrolet, near Sneads Ferry, and let us keep your Chevrolet car, truck, or SUV running strong for years to come.

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