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Unintended Acceleration Is Running Rampant


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#1 corollamike

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Posted 03 February 2010 - 11:09 PM

Here is another news item, and although it is not about a Corolla, it is relevant: http://www.leftlanen...-floor-mat.html

Read the whole article.  The second half of it describes a tragedy in Dallas -- with a Toyota with its floor mats stored in the TRUNK.

I feel the problem is in the electronics, like Steve Wozniak said here: http://www.timesonli...icle7013116.ece

In my opinion, Toyota's testing equipment isn't able to detect the fault(s) because it isn't designed to detect it/them.  It's like an autopsy where no poisons were found using their regular toxin screen -- but when they search for specific poisons, then they can detect them.

It may be a combination of ECU processes that is causing this.  Some engineers have stated in other forums that they believe the phenomenon is what they call an SEU, or Single Event Upset, the definition of which can be found here: http://en.wikipedia....gle_event_upset

It's 41 degrees F outside, and I just finished washing my Corolla.  I still like it, though I'm disappointed with Toyota.  Can't blame the car, really. 

Edited by corollamike, 04 February 2010 - 05:10 PM.

#2 friendly_jacek

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Posted 09 February 2010 - 06:29 PM

Here is another news item, and although it is not about a Corolla, it is relevant: http://www.leftlanen...-floor-mat.html

Read the whole article.  The second half of it describes a tragedy in Dallas -- with a Toyota with its floor mats stored in the TRUNK.

I feel the problem is in the electronics, like Steve Wozniak said here: http://www.timesonli...icle7013116.ece

In my opinion, Toyota's testing equipment isn't able to detect the fault(s) because it isn't designed to detect it/them.  It's like an autopsy where no poisons were found using their regular toxin screen -- but when they search for specific poisons, then they can detect them.

It may be a combination of ECU processes that is causing this.  Some engineers have stated in other forums that they believe the phenomenon is what they call an SEU, or Single Event Upset, the definition of which can be found here: http://en.wikipedia....gle_event_upset

It's 41 degrees F outside, and I just finished washing my Corolla.  I still like it, though I'm disappointed with Toyota.  Can't blame the car, really. 


Good reference on the SEU. This is why mission critical computers should have ECC RAM. No one but Toyota engineers know what RAM they use in their car computers. It would be fun to take it apart and analyze.

Edited by friendly_jacek, 09 February 2010 - 06:33 PM.

#3 corollamike

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Posted 09 February 2010 - 09:19 PM


Here is another news item, and although it is not about a Corolla, it is relevant: http://www.leftlanen...-floor-mat.html

Read the whole article.  The second half of it describes a tragedy in Dallas -- with a Toyota with its floor mats stored in the TRUNK.

I feel the problem is in the electronics, like Steve Wozniak said here: http://www.timesonli...icle7013116.ece

In my opinion, Toyota's testing equipment isn't able to detect the fault(s) because it isn't designed to detect it/them.  It's like an autopsy where no poisons were found using their regular toxin screen -- but when they search for specific poisons, then they can detect them.

It may be a combination of ECU processes that is causing this.  Some engineers have stated in other forums that they believe the phenomenon is what they call an SEU, or Single Event Upset, the definition of which can be found here: http://en.wikipedia....gle_event_upset

It's 41 degrees F outside, and I just finished washing my Corolla.  I still like it, though I'm disappointed with Toyota.  Can't blame the car, really. 


Good reference on the SEU. This is why mission critical computers should have ECC RAM. No one but Toyota engineers know what RAM they use in their car computers. It would be fun to take it apart and analyze.




Yes, it would be fun.  I've been getting a lot of relevant information at http://www.thetruthaboutcars.com


Hear the latest? Now the 09-10 Corolla's electric power steering is a hot issue, with around 80 reports of wild behavior -- and now, 4cyl Camry's have something going on with a power steering pressure hose. Wow!