Subaru Check Engine Light Reset: How to Reset Your Subaru’s Check Engine Light

1. Introduction

The check engine light on your Subaru can be a frustrating sight to see, especially if you’re not sure what it means or how to fix it. But don’t worry, in this article we’ll guide you through the process of resetting your Subaru’s check engine light. We’ll cover everything from the reasons why the light might turn on in the first place to the steps you need to take to reset it. By the end of this article, you’ll have a better understanding of your vehicle and the confidence to tackle this task yourself. So let’s get started!

2. Reasons for Turning On

The check engine light in your Subaru can turn on for various reasons. It’s important to understand these reasons so you can address any issues with your vehicle. Some common reasons include:

1. Low oil pressure: If the oil pressure drops below the recommended level, the check engine light will turn on. This can happen if the oil is low or if there’s an issue with the oil pump.

2. Faulty oxygen sensor: The oxygen sensor measures the amount of oxygen in the exhaust gases. If it fails, the check engine light will come on. This can cause problems with emissions and fuel efficiency.

3. Loose gas cap: If the gas cap is loose or missing, the check engine light will turn on. This is because the gas cap plays a role in maintaining the proper pressure in the fuel tank.

4. Catalytic converter issue: The catalytic converter converts harmful pollutants into less harmful ones. If it fails, the check engine light will come on. This can also cause problems with the emission control system.

5. Spark plug failure: The spark plugs ignite the fuel in the engine. If they fail, the check engine light will turn on. This can also cause problems with starting the engine.

It’s important to address any issues with your vehicle as soon as possible. Ignoring the check engine light could lead to further damage and potentially expensive repairs down the road.

3. Tools Needed

To reset your Subaru’s check engine light, there are a few tools you will need. The first tool you will need is a scanner tool that can communicate with your vehicle’s OBD-II (On-Board Diagnostics) port. This tool can be purchased at most auto parts stores or online. Once you have the scanner tool, you will need to connect it to your vehicle’s OBD-II port, which is usually located under the dashboard on the driver’s side.

Another tool you may need is a wrench set. Depending on the type of wrench set you have, you may need it to turn off the engine, change the spark plugs, or tighten the gas cap. It’s important to note that not all wrench sets will work for every job, so make sure to check the size of the wrenches in your set before attempting any repairs.

If you don’t have a wrench set, you can purchase one at most hardware stores or auto parts stores. When purchasing a wrench set, look for one that has a range of sizes to ensure you have the right size for any job.

It’s worth mentioning that some repair jobs may require additional tools, such as a torque wrench or a timing light. However, for resetting the check engine light, the scanner tool and a basic wrench set should suffice.

4. Steps to Reset the Check Engine Light

Sure! Here are the steps to reset the check engine light in your Subaru:

1. Make sure your vehicle is in park (P) or neutral (N).

2. Turn off the engine and remove the key from the ignition.

3. Press and hold the “Trip/Fuel” button until the check engine light blinks three times. This indicates that the code has been erased.

4. Turn the key back to the “on” position without starting the engine.

5. Release the “Trip/Fuel” button. The check engine light should turn off.

6. Turn off the vehicle and remove the key again.

7. Repeat steps 2-6 if the check engine light comes back on.

It’s important to note that resetting the check engine light may not fix the underlying issue that caused it to turn on in the first place. If the problem persists, it’s best to bring your vehicle to a certified mechanic for further diagnosis and repair.

5. Troubleshooting Tips

If you’re having trouble resetting your Subaru’s check engine light, here are some troubleshooting tips to help you out:

1. Make sure your vehicle is in park and turn off the engine.

2. Remove the key from the ignition and hold down the “Trip” or “Reset” button until the check engine light blinks three times.

3. Release the “Trip” or “Reset” button and turn the key back to the “on” position.

4. The check engine light should now be reset. If it doesn’t turn off, try again later or consult your owner’s manual for further instructions.

Remember, if the check engine light turns on again after you’ve reset it, it could indicate a serious problem with your vehicle. In this case, it’s important to have your car checked by a professional mechanic as soon as possible.

6. Conclusion

In conclusion, resetting the check engine light in your Subaru is an important step in maintaining the health of your vehicle. By following the steps outlined in this article, you can easily reset the check engine light and avoid any potential problems down the road. Remember to only use high-quality tools and to take your time when performing these tasks. If you are ever unsure about any aspect of the process, consult with a professional mechanic or technician. With proper care and maintenance, you can ensure that your Subaru continues to run smoothly and efficiently for years to come.