Quote:
Originally Posted by Ultramaroon
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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Yup, my standard universal OBD2 reader pulled the snapshot data the few times I've had the coilpack failure code, never bothered to look at the others, but I remember looking at the one that happened heading up to turn 5 at Laguna Seca, >6k rpm, ~80-something mph, that's when I decided I wasn't going to waste much time attempting a warranty repair on 'em...
I can't recall if my bluetooth dongle could do it too, I know the scanner I have is relatively higher end, compatible with Toyota/GM protocols so that may be why it was able to pull it.
But as above, not really relevant to the rocker arm failure that should be front and center.