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How do I know if my airbag module is bad?

Understanding the functionality of your vehicle's airbag system is crucial for your safety on the road. The airbag module plays a vital role in this system, and knowing how to identify potential issues can save lives. In this article, we will explore the signs of a failing airbag module and what steps you can take to address the problem.


Signs of a Bad Airbag Module


There are several indicators that may suggest your airbag module is malfunctioning. Being aware of these signs can help you take timely action:



  • Warning Light: The most common sign is the airbag warning light on your dashboard. If this light remains illuminated after starting your vehicle, it indicates a problem with the airbag system.

  • Faulty Deployment: If your airbags do not deploy during a collision, it could be due to a faulty airbag module.

  • Intermittent Issues: If the airbag light turns on and off sporadically, it may indicate a problem with the module or its connections.

  • Diagnostic Trouble Codes: A professional diagnostic scan can reveal trouble codes related to the airbag system, pointing to a malfunctioning module.


What Causes Airbag Module Failure?


Understanding the causes of airbag module failure can help you prevent issues in the future. Here are some common reasons:



  • Electrical Issues: Corrosion, damaged wiring, or poor connections can disrupt the module's functionality.

  • Impact Damage: A significant collision can damage the airbag module, even if the airbags did not deploy.

  • Age and Wear: Over time, components can degrade, leading to failures in the airbag system.


Steps to Take If You Suspect a Bad Airbag Module


If you notice any of the signs mentioned above, it’s essential to take action. Here are the steps you should follow:



  • Consult a Professional: Schedule an appointment with a certified mechanic who can diagnose the issue accurately.

  • Run a Diagnostic Test: A professional will use specialized equipment to check for error codes related to the airbag system.

  • Replace the Module if Necessary: If the airbag module is confirmed to be faulty, it will need to be replaced to ensure your safety.


Conclusion


Your vehicle's airbag system is a critical safety feature, and the airbag module is at its heart. By being vigilant about the signs of a failing module and taking prompt action, you can help ensure that your airbag system functions correctly when you need it most. Remember, regular maintenance and inspections can go a long way in keeping your vehicle safe and reliable.

Frequently Asked Questions

How do you know if your airbag control module is bad?


An airbag or SRS warning light on your dashboard is the most typical and likely the sole clue that an airbag control module is malfunctioning. The other sign is that when there is an accident, the airbags won't deploy, which is something you absolutely do not want to happen.



How much does it cost to reset an airbag module?


between $50 and $150
Resetting an airbag module typically involves reprogramming the existing module and erasing crash data. On average, you can expect to pay between $50 and $150 for a straightforward reset.



Can Autozone diagnose an airbag light?


Autozones $50 scanner doesn't do that.



What are the symptoms of a bad airbag sensor?


All drivers need to be aware of the following signs of a malfunctioning airbag sensor:

  • Flashing Airbag Light. If your airbag light is flashing on your dashboard, this means your airbag has been disabled.
  • Worn Airbag Module. Airbag modules degrade over time.
  • Damaged Airbag Clock Spring.
  • Depleted Battery.



Will disconnecting battery reset airbag?


If you don't have access to a diagnostic tool, you can try disconnecting the car's battery. However, exercise caution as this may also reset other systems and might cause some setting presets to change.



How much does it cost to replace an airbag module?


The average price of a new air bag control module hovers around $600 to $700 for parts and another $110 to 140 for labor. Prices may vary depending on the standard rates, taxes, and fees in your location.



What happens if you unplug airbag module?


Answer: Yes, if you remove the airbag module, your vehicle's airbag warning light will typically stay on. This is because the system detects that the module is missing and is alerting you to a fault in the safety system. Once the module is reinstalled and properly connected, the warning light should go off.



Can you reset airbag module?


Sending to a Repair Service: If you don't have access to a diagnostic tool, consider sending the airbag module to a professional service that specializes in resetting airbag systems. They will reset the crash data stored in the module and return it to you, ready to be reinstalled.



What should you never do around an air bag module?


Never place your head or body close to the front of an undeployed airbag, especially when fitting it, or removing it from a vehicle. Always carry the airbag module with the trim cover facing away from you. Never attempt to repair or modify airbag modules.



How do you know the airbag system is malfunctioning?


A red airbag warning light is the most critical. When this light comes on, it indicates a serious issue with the SRS system, meaning the airbags may not deploy in the event of an accident. Immediate action is required to diagnose and fix the problem.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.