What Causes Airbag Failure to Deploy?
2 Answers
Airbags may not deploy because the conditions for airbag deployment are not met. Necessary conditions for airbag deployment: The vehicle speed is generally above 50 km/h, but the key factor is the acceleration during the collision. The impact angle must be within approximately 60° of the front. Collision with a rigid wall or obstacle. Here is some related information about airbags: Airbags are a passive safety feature in motor vehicles. When used in conjunction with seat belts, they provide effective collision protection for occupants. In a car collision, airbags can reduce head injuries by 25% and facial injuries by about 80%.
After years of driving, I've encountered situations where airbags failed to deploy, mainly due to several reasons: sensor issues are the most common, such as misalignment or dust buildup preventing collision detection; wiring faults like short circuits or breaks, especially when harnesses age and interfere with signals; frequent fuse blowouts, particularly during overloads or short circuits; damage to the airbag control module is also critical—if internal circuits fail or get wet, the entire system crashes; software-wise, initialization errors or the need for programming updates; unstable battery voltage or insufficient power during vehicle startup can also trigger failures. For repairs, always go to a professional shop—don't skimp on this. Airbags are life-saving; don't risk driving without them functioning properly.
