How To Reset Anti Pollution Fault

How to Reset Anti Pollution Fault

Dealing with car problems can be quite frustrating, especially when you see an unexpected warning light pop up on your dashboard. One common issue many drivers face is the “Anti Pollution Fault” error message. But don’t worry, resolving this problem can be easier than you think. In this article, we will guide you through the steps to reset the anti pollution fault in your vehicle.

Understanding the Anti Pollution Fault

Before we delve into the reset process, it’s important to understand what the anti pollution fault entails. The Anti Pollution Fault warning can indicate various issues related to your vehicle’s emissions control system. These problems can range from a clogged particulate filter or oxygen sensor malfunction to more severe engine or fuel injection system issues.

When the anti pollution fault warning appears, it is crucial to address the underlying problem promptly to prevent any potential damage to your vehicle’s engine or exhaust system, as well as to ensure compliance with environmental regulations.

Resetting the Anti Pollution Fault:

1. Identify the cause: The first step in resetting the anti pollution fault is to identify what triggered the warning in the first place. If your car has an OBD (On-Board Diagnostic) system, you can use an OBD scanner to read the fault codes. These codes will provide you with more specific information about what is causing the issue.

2. Address the underlying problem: Once you have identified the specific fault codes, it’s essential to address the root cause of the problem effectively. Depending on the fault, you may need to consult a professional mechanic or follow vehicle-specific troubleshooting guides to fix the issue.

3. Disconnect the battery: To reset the anti pollution fault, you will need to disconnect the battery of your vehicle. Start by turning off the engine and parking your car in a safe location away from traffic. Locate the battery in the engine bay (refer to your vehicle’s manual if needed).

Take note of any specific instructions or warnings in your vehicle’s manual regarding battery disconnection, such as anti-theft codes for your radio or electronic systems.

Using a wrench or socket set, carefully remove the negative terminal cable (usually black) from the battery. Ensure that the cable is secured away from the battery to prevent accidental reconnection.

4. Wait and reset: With the battery disconnected, wait for at least 10 minutes. This waiting period will allow any residual charge to dissipate from the vehicle’s electrical system. While waiting, you can inspect the battery terminals for any signs of corrosion and clean them if necessary.

After the appropriate waiting time has passed, reconnect the negative terminal cable to the battery and secure it tightly.

5. Test drive and monitor: Start your car’s engine and take it for a short test drive to see if the anti pollution fault warning light has been successfully reset. If the issue has been resolved, the warning light should no longer be illuminated. However, it’s crucial to monitor your vehicle’s performance and watch out for any recurring issues.

When should you seek professional help?

While the above steps can often resolve the anti pollution fault, certain situations may require professional assistance:

– If the warning light persists even after resetting

– If you are unsure about identifying or fixing the underlying problem

– If the fault codes point to severe or complex issues

In these cases, it’s recommended to visit a qualified mechanic or authorized service center for a comprehensive diagnosis and appropriate repairs.


Dealing with an anti pollution fault warning can be worrisome, but by following the steps outlined above, you can often reset the warning light after addressing the underlying problem. Remember to exercise caution when working with your vehicle’s battery, and if needed, don’t hesitate to consult a professional for expert assistance. By promptly addressing and resolving the anti pollution fault issue, you can ensure a smoother and more environmentally-friendly driving experience.

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