TTAC commentator Celebrity208 writes:

Sajeev:
I’d always thought that police crash investigators would check the tail light bulbs of a car that was rear ended to determine if its lights were on at the time of the crash. I thought it had something to do with the way the filament was broken/burnt/etc. So my question is two-fold, am I crazy and do they do this, and if so how might LED tail lights remove this piece of forensic evidence regarding correctly operating brake lights at the time of an accident (presuming the fault was contested)?

(Read More…)

Welcome to amateur hour. As reported yesterday, The Wall Street Journal claimed in a story that Toyota’s “data recorders can lose their information if disconnected from the car’s battery or if the battery dies—as could happen after a crash.” Their source was “a person familiar with the situation.” Commentator Carquestions concluded that the source doesn’t know what he or she is talking about. After we wrote about it, Carquestions fingered the not so knowledgeable source as “a secretary within Media Relations at the DOT.”

Instead of talking to a secretary, the WSJ could have done what we did: Call Toyota headquarters in Tokyo. (Read More…)

At the Wednesday press conference in Tokyo, Toyota slipped in the remark that they “will more actively use on-board event data recorders, which can, in the event of a malfunction, provide information necessary for conducting such activities as technological investigations and repairs.”

This remark was widely overlooked. It should not have been.

Five days before, the Wall Street Journal had written:

“The safety problems that have engulfed Toyota Motor Corp. are focusing renewed attention on one of the most controversial components in an automobile: the black box. The box, officially called an “event data recorder,” is a small, square, virtually indestructible container akin to those found on commercial airplanes. Tucked inside the dash or under the front seats of most newer vehicles, it records vehicle and engine speeds as well as brake, accelerator and throttle positions and other data that can help determine the causes of accidents.”

If there would have been such a black box in the Toyotas that had crashed, it would have been easy to read out whether the foot was on the gas or on the brake. Guess what: Toyota has this box. It had been in many of the crashed vehicles, says the Wall Street Journal: (Read More…)