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Guys, with respect to "freeze frame" data:
1. The system records a multitude of vehicle operating parameters every half second.
2. When a qualifying fault is detected, a snapshot is saved. The snapshot includes 2 or 3 preceding (I don't remember exactly) freeze frames, another at the time of the fault, and one more immediately after. The snapshot is read/downloaded by techstream.
I don't think this is the EDR. I have no idea how that works. :/
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