How to Read & Reset Check Engine Light Jeep Wrangler

Last updated on July 11th, 2023 at 08:50 pm

Do you need to reset the check engine light jeep wrangler vehicle? Well, the check engine light is a feature that is common in all cars. Whenever the light comes on in your vehicle, it is trying to pass a message to you.

It simply means that there is something wrong with your vehicle and you need to get it fixed as fast as possible. The jeep onboard diagnostics are receiving an error code from one of the multiple sensors in the vehicle.

The check engine light should not be ignored or neglected. Although the error could be as simple as a loose gas cap or a complex problem, it could lead to engine damage, if it is not fixed immediately. Related: U.S. Flag for Jeep Wrangler: Why do Jeeps Have Flags on Them

Overview on How to Read & Reset Check Engine Light Jeep Wrangler

Before your Jeep Wrangler check engine light comes on then, you may have been noticing some symptoms with your car that you are probably ignoring.

This could be overheating, poor throttle response, exhaust system bringing out smoke, or the engine losing power.

Whatever it might be, it is left for a professional to figure out. Once the problem that is triggering the check engine light of your Jeep Wrangler is fixed, the check light is supposed to go off.

However, sometimes even when issue is fixed, the check engine light will not go off on its own, so it is left to you, as a car owner, to reset check engine light jeep wrangler.

So this post here is some the highlight of this article:

How to reset check engine light jeep wrangler
What does the check engine light mean on a Jeep Wrangler?
What to do with a jeep wrangler check engine light no codes
how to clear codes on jeep wrangler
how do you reset the check engine light on a jeep grand cherokee
2014 jeep wrangler check engine light
2016 jeep renegade check engine light reset

So whether you need to see the steps 2016 jeep renegade check engine light reset or 2014 jeep wrangler check engine light, this post will provide the help you need. So feel free to skip the area you most interested in.

What does the check engine light mean on a Jeep Wrangler?

The check engine light on a Jeep Wrangler is an indication that the vehicle is not healthy. The light comes on when a sensor in the car is sending an error code to the onboard diagnostic computer that something in the care is not functioning as it should be.

The check engine light is like a malfunction indicator light; it informs you that something is not right with your car.

It usually happens whenever the jeep’s diagnostic computer finds a malfunction with a component or a system of the car.

The check engine light will not point out what the problem is. So, you will need to run a complete diagnosis on the jeep.

Some of the most common things that could trigger the check engine light are missing/ loose gas cap, faulty ignition coils, dirty or damaged mass airflow sensor, faulty spark plugs, oxygen sensor, and catalytic converter.

If your Jeep check engine light comes on then, one or more of these components might be faulty.

Before your check engine light comes on, you must have been noticing some symptoms in your Jeep. It might be that your engine has rough idling, misfire, or stalls after running.

If you can see smoke coming out of your exhaust or you notice overheating then, this can also be that there is a problem.

How to Read jeep wrangler check engine light codes

If you want to check the engine codes on your Jeep, it is a very simple task. The first thing you need to do is to insert the key into the ignition and then, turn to the ON position. However, do not start the Jeep.

Once you have done the above, push in the key and turn to the ON and OFF position consecutively three times.

Do not go too slow and make sure you finally leave it in the ON. When doing this, the key should be pushed inside the ignition.

After doing this, the Jeep’s dashboard light should come on and if you take a look at the odometer, you will see six dashes.

Once these dashes disappear, you will be able to see any check engine codes that the Jeep has logged in.

However, if your Jeep has not recently logged in any code, you will see “Done” on the dashboard. You can write down the code that appears so that it will be easy to discover its meaning.

What to do with a jeep wrangler check engine light no codes

When you notice that your jeep wrangler check engine light shows no codes, it best to matter with an experienced mechanic to check what could be wrong with your vehicle.

But this should be after you have observed the car for a while and the check engine light didn’t go out in few days then you can take the car to the mechanic.

How to reset check engine light jeep wrangler

There is always a reason why your Jeep Wrangler check engine light comes on. The first thing to do when you notice this is to take it to the mechanic for repair.

If you neglect this light, it could cause more damage to the engine. However, if after fixing the problem, the check engine light does not go off then, you need to reset it.

To do that, open the hood of the jeep and look for the battery terminal (positive). Use a wrench to lose the clamps bolt.

Once you do this, separate the clamp and the terminal and make sure that it does not touch the battery’s negative side.

Wait for some minutes and put back the battery positive battery terminal. Insert your key in the ignition and put it in the ON position for a few seconds before cranking the engine.

How do you reset the check engine light on a jeep grand Cherokee?

There are many things that could trigger the check engine light on the Jeep Wrangler. It could be that the gas cap is not tightened enough or you have a faulty mass airflow sensor.

The check engine light is an indicator that can only be triggered, if there is an error with one or more sensors or parts of the Jeep.

How do you reset the check engine light on a jeep grand Cherokee

Neglecting the check engine light can be dangerous and more costing than you can imagine.

The best option is to take your car to a mechanic to have fixed. Once you fix it, the check engine light is normally supposed to go off.

However, if the check engine light does not go off after repairing then, you need to reset it.

If you want to reset the check engine light on your Jeep Wrangler, insert the ignition key without starting the engine and then, turn to the ACC position.

This action will power the Jeep’s electronics and computer. After that, connect an OBD-II code scanner to the Jeep Grand Cherokee diagnostic tool.

Once you have done this, look for its diagnostic connection. This connection is always beside the brake just under the steering column. Now, press a button on the scanner so that you can check the system.

This should take a few seconds. Once the codes appear on the scanner; you can clear them, using the same button. Once you do this, you have already reset the check engine light.

Before you try to reset the check engine light, make sure you have fixed the problem that is triggering the check engine light; otherwise, it will come back on, after some days.

The above steps will work for a 2014 jeep wrangler check engine light reset and a 2016 jeep renegade check engine light reset.

Conclusion

Before you try to reset the check engine light on your Jeep wrangler or grand Cherokee, make sure you first of all fix the problem that is triggering it. Without fixing it, the check engine light will come back on a few days later.

So if I should ask you “What does the check engine light mean on a Jeep Wrangler”? What will be your answer? Well, I hope this post has helped you, if it has, please don’t hesitate to share it and also bookmark the page for feature reference.

Gift Dennis

Hi dear, I am Dennis Gift, an autobody repair technician with over 4 years of experience; and I love everything about fitness and cars and researching and sharing my experience. And this is where I get to do that freely without reservations. So come along with me.