I think the battery for this vehicle is located inside the left fender / wheel well. My guess is, it got taken out early in the event, resulting in a catastrophic power loss. Reserve energy was sufficient to command the deployment of various pyros, but not to record anything. As a result, no RDS was sent. This power loss is also the only reason you have useable PCM data: if the PCM had remained powered in the absence of an RDS, it would have filled the circular buffer and overwritten the pre-crash data with post-crash data, i.e. a whole bunch of zeroes. In short, it's all consistent with an early power loss, so take your PCM data and be happy! (And remember: if we're working on this one, particularly if we're opposite you, you can't quote anything I say here! )
D. Patrick Ryan, P.Eng. - Graham Ryan Consulting Ltd.
#34, 11410 - 27 Street SE Calgary, AB T2Z 3R6
Phone: (403) 290-1150 Fax: 290-0659 Cell: 651-8340