The airbag system is a vital part of the car safety system. The airbag system can mean the difference between survival and serious injury or death in a crash situation. The airbag system is a clever and complex piece of kit which is made up of various components, which work together with the airbag SRS control module, a highly advanced computerized part, to ensure this important safety device functions effectively. SRS stands for 'supplemental restraint system', which means the airbag system provides extra or supplementary safety protection to the car seatbelt in a crash situation.
The airbag SRS control module, also known as the airbag control unit ECU, is located in the front section of the car and can be found in various places, such as underneath the passenger or driver seat, behind the steering column, or hidden in the casing beneath the radio, for example.
The airbag system has airbag sensors which are electronic sensors that detect when the vehicle has crashed and which area is damaged. These advanced sensors monitor and measure factors such as brake pressure, wheel speed and which seats are occupied and sends this information to the airbag SRS control module, which is the control center of the airbag system. The airbag SRS control module will determine if it needs to implement the activation of airbags as well as deciding if functions such as automatic seat belt and door lock are put into place.
The airbag SRS control module will regularly carry out routine diagnostic checks of the air bag system. If the airbag SRS control module picks up a fault, the air bag system warning light will illuminate on the dashboard. Once the airbag system warning light illuminates, the system becomes inactive which means if you have a crash the airbags will not work so it is important to address the problem as soon as possible. A common problem with the airbag SRS control module is water damage, particularly if it is situated underneath one of the front seats, which can lead to corrosion or cause the airbag SRS control module to fail as a result of a short circuit. If the airbag SRS control module short circuits or there is another fault with your airbag SRS control module, you will see the airbag system control warning light illuminate. If the airbag SRS control module is broken or damaged by water, for instance, you will need to replace it as the airbag system will not function properly without it, meaning the airbags may not inflate properly in a crash, and left unaddressed could also lead to other electrical and airbag system failures. If any of the airbags are activated, then the airbag SRS control module will need to be replaced or reset by a professional.