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Late mid '90's GM Delphi air bag module.
Sample GM air bag module SDM / EDR / black box accident crash data using the Vetronix Bosch CDR tool.
AIR BAG SDM / BLACK BOX / EDR / CRASH DATA AVAILABLE (depending on year and model)
Vehicle speed (in five one-second intervals preceding impact) Engine speed (in five one-second intervals preceding impact) Brake status (in five one-second intervals preceding impact) Throttle position (in five one-second intervals preceding impact) Driver's seat belt state (On/Off) Passenger's airbag enabled or disabled state (On/Off) Airbag Warning Lamp status (On/Off) Time from vehicle impact to airbag deployment Maximum Delta-V ( DV ) for near-deployment event Delta-V ( DV ) vs. time for frontal airbag deployment event Time from vehicle impact to time of maximum Delta-V ( DV ) Time between near-deploy and deploy event (if within 5 seconds)
Additional crash data available 2006 and newer GM vehicles:
Low tire pressure warning system status
Traction control status
Anti lock brake status
Transmission range
Service engine lamp status
Vehicle door 2/4 status open/closed
Outside air temperature degrees F
Passenger seat belt switch
Yaw rate
Lateral acceleration
Steering wheel angle
PDOF / Principal direction of force degrees
And more...
Most downloaded GM air bag SDM modules contain 5-10 pages of crash data information.
GM air bag SDM 5 seconds of pre-crash (AE) vehicle data
GM air bag SDM velocity speed change in milliseconds after AE
Air bag system status at deployment / non deployment
GM air bag SDM hexadecimal data
Why was I not told my GM car had a 'black box' when I bought it?
Many GM dealers are not aware of the recording ability of the air bag SDM. The fact that the air bag module is recording data is explained in the vehicles owners manual.
Example: 2001 Cadillac owners manual statement.
"Your vehicle is equipped with an electronic frontal sensor, which helps the sensing system distinguish between a moderate frontal impact and a more severe frontal impact. Your vehicle is also equipped with a crash sensing and diagnostic module, which records information about the frontal air bag system. The module records information about the readiness of the system, when the system commands air bag inflation and driver's safety belt useage at deployment or near-deployment crash. The module also records speed, engine rpm, brake and throttle data."
Who owns the air bag SDM /EDR 'black box' module crash data?
Basically, the owner of the vehicle owns the crash data. Example: If a insurance company pays off your wrecked vehicle, they now own the air bag SDM crash data. Then, if the insurance company sells the vehicle to a salvage yard, then the salvage yard owns the air bag crash data.
The black box in your car may get possible legislation..
New legislation is up for debate in North Dakota that would require car buyers to be told if their new car or truck is equipped with a black box that records accident information. The bill also would only allow black-box-gathered information in court unless there is a court order to do so. Other states are also considering black box regulation like Connecticut, New Jersey, New York and Virginia.
Need more information or a GM air bag SDM downloaded? Please feel free to contact us.
2006 NHTSA, NTSB 'mandate' recommendation of standardizing EDR (event data recorder) crash data for model year 2011 motor vehicles.
Delta V, longitudinal
Time, maximum delta V
Speed, vehicle indicated
Engine throttle, % full (or accelerator pedal, %full)
Service brake, on/off
Ignition cycle @ crash
Ignition cycle @ download
Safety belt status, driver
Frontal air bag warning lamp
Frontal air bag deployment, time to deploy, first stage, dual stage, drivers
Frontal air bag deployment, time to deploy, first stage, dual stage, passenger
Multi-event, number of events (1-2)
Time from event 1 to 2
Complete file recorded (yes/no)
Lateral acceleration
Longitudinal acceleration
Normal acceleration
Delta V, lateral
Maximum delta V, lateral
Time maximum delta V, lateral
Time for maximum delta V, resultant
Engine RPM
Vehicle roll angle
ABS activity (engaged, non-engaged)
Stability control (on, off, engaged)
Steering input
Safety belt status front passenger
Frontal air bag suppression switch status (on, off, or auto)
Frontal air bag deployment, time to n'th stage, driver
Frontal air bag deployment, time to n'th stage, passenger
Frontal air bag deployment, n'th stage disposal, driver Y/N
Frontal air bag deployment, n'th stage disposal, right front passenger Y/N
Side air bag deployment, time to deploy, driver
Side air bag deployment, time to deploy, right front passenger
Side curtain/tube air bag deployment, time to deploy, driver side
Side curtain/tube air bag deployment, time to deploy, right side
Pretensioner deployment, time to fire, driver
Pretensioner deployment, time to fire, passenger
Seat track position switch, foremost, status, driver
Seat track position switch, foremost, status, passenger
