Nationwide Insurance

[MarkCO]

What kind of data does the airbag module have?

Vehicle speed, Brake light switch (On/Off?), Engine speed, Throttle position, number of key cycles, ∆V, Seat belt buckle, Near deployment events, Airbag deployments, Seat belt pre-tensioner deployments. In some vehicles, there is more. I have seen direction, light condition, load, engine temperature. Near deployment events are when the airbag has passed a certain threshold but did not elevate past a trigger threshold. These are overwritable, meaning 1 to 5 can be stored, but they go away writing over the oldest if the limit is met. Deployment events are not overwritable which is why the module needs to be changed if you have a deployment event. The event is from 5 to 8 seconds of data. The data is collected and stored in a matrix format and the manufacturers, by law, have to allow 3rd parties to access their modules as well as decode. So with most of the data, I get a graphical representation. Brake light switch, seat belts is just a yes or no.