At a recent Society of Automotive Engineers conference in Washington,
Ford announced the 2004 Explorer and F150 have crash data recorders on
board. The recorder is part of the electronic throttle control and not
part of the air bag control module as on other Ford models.
From the web site with the complete vehicle listing:
"The following Ford vehicles have the capability to store a data
record within the Electronic Throttle Control. The data record is
"locked" when the air bags deploy. The record can include vehicle
speed, accelerator pedal %, brake pedal %, brake switch status,
throttle position %, engine speed (RPM), transmission status, speed
control status and deployment of safety devices.
The amount of time recorded varies between system models but the
minimum time recorded is 20 seconds before air bag deployment and 5
seconds after deployment.
This data can only be retrieved by Ford engineers, not with the
current Vetronix equipment or by Ford dealer service technicians."