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Crash Data Retrieval (EDR/CDR)

Car Accident

The Institute of Risk & Safety Analyses uses the Bosch Crash Data Retrieval Software and Hardware to download crash data from supported vehicles:

Data is read from AirbagControl Modules (ACM), Roll-over Sensors (ROS), and Powertrain Control Modules (PCM) installed in supported vehicles. For heavy tractor trailers, the data comes from the Engine Control Module (ECM).

The Bosch Crash Data Retrieval System is a proven tool that allows Collision Reconstructionists the opportunity to image crucial crash data parameters from a vehicle that has been in an accident. This crash data, which is stored in the vehicle’s airbag control module, may be used to make informed decisions about the accident based on the crash data "imaged" from the vehicle in question.

Crash Data Recording possesses a proven track record of admissibility at trial, providing valuable crash evidence such as:

  • Pre-crash vehicle data
  • Vehicle speed
  • Delta-v (change in velocity)
  • Crash severity
  • Seat belt status
  • Throttle position
  • When the break was applied ignition cycles
  • Crash pulse data
Broken High Heels

NOTICEThe severity of the crash may affect the ability to read data. Damaged modules may not be able to provide accurate data.

Data Retreival Hierarchy:
  • Plug into car's OBD port
  • If the port is damaged or inaccessible, direct access to the car's module is necessary
  • If the module's data port is inaccessible, it will need to be removed from the car and imaged at our lab.
  • If the module is physically damaged, repairs will be attempted, but are not guranteed to work.