How to Reset Jeep Wrangler Check Engine Light?(Easy Steps)

If you own a Jeep wrangler, then at one time or another, you’re going to reset the check engine light. So don’t panic seeing the light comes on your Jeep Wrangler; it’s likely just a minor issue that can be easily fixed. 

Resetting the check engine light is a simple technical process ,but you have to do it carefully. All you need is  5-7 minutes of time with your battery disconnected from the terminals.

So ,from now on , you can tackle the check engine light issue with confidence. Just try to figure out what went wrong and do the necessary steps then reset the light. We will show you how to reset the check engine light and explain what causes the light to come on.

Resetting the Jeep Wrangler Check Engine Light

We have you covered, from manually disconnecting the battery terminals to scanning for real-time information. Let’s look at the step-by-step guideline for resetting the check engine light on a jeep wrangler.

Step 1: Stop the Ignition

Before you start resetting the check engine light of your Jeep Wrangler, make sure your engine is turned off. Pull out the ignition key and set it aside for now. 

Step 2: Loose the Clamps

You will need to loosen the clamps that hold the battery cables in place. Use an adjustable wrench or a pair of pliers to do this. Keep the cables intact; just ensure they are tight enough for step three.

Step 3: Separate the Clamps

Make sure that your clamps are apart from each other and the terminals. If they come in contact with one another, then friction can occur, which would cause damage over time to both components of this device.

Step 4: Reconnecting the Clamps

Give 5-7 minutes of standing time when you finish.After that, attach your terminal and ensure they are positioned as before.

Step 5: Start the Engine

Put on your key and keep it in the run position. Wait one minute, then start the engine- this will reset Check Engine Light.

Read Also: How To Fix Jeep Wrangler Key Fob Not Detected Issue? Solved

Clear Codes On Jeep Wrangler : Methods You Can Follow

Clearing codes on a Jeep Wrangler does not differ from resetting the check engine light. By doing this, the previously stored codes will be automatically cleared. 

Steps to Diagnose the Problem: Check Engine Light is on

The Check Engine light on your Jeep Wrangler can be frustrating, especially if you don’t know why it’s on. Fortunately, there are several steps you can take to diagnose and reset the check engine light.

Check the Gas Cap

If you have a loose or damaged gas cap on your vehicle, it can cause the check engine light to come on.The gas cap seals the fuel system and prevents gasoline vapors from escaping. So,loose or damaged gas caps can activate the check engine light. 

Use an OBD-II Scanner

The most accurate way to diagnose and reset the check engine light is to use an OBD-II scanner. This device attaches directly to your Jeep’s onboard computer and accesses trouble codes stored in its memory. Once you have identified the trouble code, you can then take steps to fix it and reset the check engine light.

Identify Any Error Codes That Appear

When an OBD-II scanner is plugged into the vehicle’s computer, it will display any stored error codes. Error codes indicate a specific problem or issue with the engine and can help pinpoint the exact cause of the check engine light.

Take Note of Any Pending Codes

In addition to error codes, some OBD-II scanners can also detect pending codes. These are codes that may not necessarily be causing the check engine light to come on now but could cause it in the future. It’s a good idea to take note of any pending codes and address them before they become an issue.

You can find a six-character code for each issue, and when it’s resolved, pulling off the battery terminals will restore your device to its default setting.

Apart from resetting the check engine light, other methods can also be used to clear the codes on a Jeep Wrangler. This includes using an OBD-II scanner device or computer software for diagnostics that can help erase existing codes and turn off the Check Engine Light.

These methods are more convenient as it eliminates manually disconnecting your battery and waiting for recent memory loss to take effect. 

Read Also: What Causes Jeep Wrangler Red Light On Dash & Won’t Start?

Frequently Asked Questions

The FAQ section below will help answer many common questions regarding how to reset the check engine light and clear codes on a Jeep Wrangler.

Can I still drive my Jeep Wrangler with the Check Engine light on?

You should not drive your Jeep Wrangler with the check engine light on. The check engine light indicates something is wrong with your vehicle, and driving it could cause more damage over time. It’s important to take the time to properly diagnose and fix the issue before continuing to drive it.

Will a Jeep Wrangler’s “Check Engine” light turn itself off?

No, the check engine light will not turn off itself on a Jeep Wrangler. You need to manually disconnect the battery clamps and allow them to rest for 5-7 minutes for it to reset. Alternatively, you can use an OBD-II scanner or diagnostic software to clear the codes.

How Do I Reset My “Check Engine Light” If I don’t Have a Scanner?

To reset the check engine light without a scanner, disconnect the clamps from the battery terminal and allow them to rest for 5-7 minutes. This will help reset any stored codes in your Jeep Wrangler’s computer system and turn off the Check Engine Light (CEL).

How Long Does the Jeep Wrangler Check Engine Light Take to Go Off?

It will usually take 5-7 minutes for the Check Engine Light on a Jeep Wrangler to go off after you have disconnected the battery clamps. However, using an OBD-II scanner device or diagnostic software may be able to clear codes more quickly and reset the Check Engine Light.

Read Also: Why Is My Jeep Wrangler Gas Cap Light On?(Causes & Fixes)

End Note

While the check engine light may seem daunting, you can reset it manually by following our guidelines. Choose whatever method seems simplest and most effortless for you.

For instance, OBD-II scanners provide real-time information about your car’s computer system and any faults or error codes that have been detected. 

Additionally, diagnostic software has become more popular as it allows you access to more detailed data than basic OBD-II scanners provide while giving you easy access from your home.

It’s important to note that resetting a check engine light might address the underlying problem temporarily and may not solve the issue permanently. If the light does not go away after resetting it, take your car to a qualified mechanic for further inspection.

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