Toyota rules out electronics as unintended acceleration cause - report

 Toyota rules out electronics as unintended acceleration cause - report
2008 - 2010 Toyota Avalon Limited

Independent report by a California engineering firm says electronics not a cause of sticking accelerators

Well, finally something that can be labeled good news for Toyota.

According to the Japanese automaker, the sticking accelerator problem for which it has had to recall several models globally is not due to any electrical faults.

In a report by the Wall Street Journal, Toyota commissioned California engineering firm Exponent to study the problem. The Journal obtained a copy of the study conducted by Exponent which found that no electronics issues were related to the problem.

The Wall Street Journal quotes from the report:

"Exponent has so far been unable to induce, through electrical disturbances to the system, either unintended acceleration or behavior that might be a precursor to such an event, despite concerted efforts toward this goal."

Toyota commissioned the independent study in order to counter claims that it wasn't doing enough to fix the problem of unintended acceleration and that the defect was linked to its electronics. Toyota has issued a recall to fix floor mats and gas pedals which may cause the throttle to get stuck.

"We have no indication that the electronic throttle is an issue. We are not the only ones with electronic throttles," said Don Esmond, senior vice president of Toyota Motor Sales U.S.A. Inc. at a dealer's even in Florida.

Toyota has had to recall about 8.5 million cars worldwide due to the defective gas pedals.

 

Source: autonews.com (sub req)

Toyota Update: Exponent Report on the Company's Electronic Throttle Control System

Toyota has retained Exponent, a well-respected engineering and scientific consulting firm, to conduct a comprehensive, independent analysis of Toyota and Lexus vehicles using the ETCS-i system (Electronic Throttle Control System with intelligence) for concerns related to unintended acceleration.

Toyota has provided members of Congress with an interim, first phase report from Exponent on its evaluation of the ETCS-i system, consistent with the company's commitment to increased transparency regarding the quality and safety of its vehicles.

The interim report, dated February 4, 2010, notes that Exponent was unable to induce unintended acceleration in any of the ETCS-i equipped Toyota and Lexus vehicles it tested. In all cases, the vehicle either behaved normally or entered a fail-safe mode where engine power was significantly reduced or shut off.

Exponent's testing and evaluation is ongoing. Its first phase evaluation was performed by a team that included both engineers and technicians with specialized knowledge in mechanical, electrical, and automotive engineering and involved extensive testing on multiple vehicles and individual components under a variety of normal and abnormal conditions.

 

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Comments (19)

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 Joe_Limon Joe_Limon
so the problem might not be due to electromagnetic interference. That doesn't rule out any glitches in the code/sensors due to manufacturing issues or programming issues.
February 15, 2010 5:33 pm
 Sultan91 Sultan91
recalling worldwide cars ? i believe no Middle Eastern agency has started to recall any cars yet. What are they waiting for ?
February 15, 2010 5:55 pm
 GRAVE GRAVE
The question is why 85% of the recalled cars are manufactured in the US? And those faulty parts from where they are imported? Ans how come those parts were manufactured without been inspected?
February 15, 2010 6:25 pm
 FOXHOUND FOXHOUND
Try to use proper grammar before you attempt an insult carcrazy1234, or shall I continue?
February 15, 2010 7:37 pm
 Dolomight 74-86 Dolomight 74-86
I think the main reason for the recalls are because cheap outsourced labour makes cheap cars. American's obesity and motivational problems have nothing to do with this recall.
February 15, 2010 9:27 pm
 Joe_Limon Joe_Limon
No, it is Toyota's design flaw pure and simple. Lately Toyota has been trying to blame shift by blaming American parts distributor CTS, however the fact of the matter remains that CTS produced parts exceding Toyota standards, if they didn't they wouldn't have been installed. Besides, there are many reports of the car automatically full throttling, and not just "sticking" so truth be told they still don't know their own problem.
February 15, 2010 11:37 pm
 EDavis EDavis
carcrazy1234: "cuz their american and lazy and fat and.... shall i continue :P?"...and stupid too I presume? Look up "GDP by country" and let all of us know which country comes in first place (by a long shot). I'll give you a hint; this country isn't Japanese, German, Chinese or even the one that you're living in. Your anti-American comments are an inspiration to those who, like a bovine contemplating astroturf, are easily confused.
February 16, 2010 12:38 am
 Dolomight 74-86 Dolomight 74-86
So Limon you think that there was a problem with the initial design. I was kinda betting on the "after the fact assembly" angle. Anyway do you think that toyota telling the owners to get rid of their floormats was a ruse, since they didn't know what the problem was?
February 16, 2010 12:51 am
 9TNine 9TNine
...
February 16, 2010 7:22 am
 quick123 quick123
This is a reply to everyone: You are all wrong, the news is wrong, and even Toyota customers are wrong. I work for Toyota here in the states, and there is so much bad information going around nobody thinks to ask Toyota. The problem is only with the CTS pedals wearing through friction over time and loosing tension in the spring mechanism simply by wear-and-tear. This will cause the pedal to be slow to return after being pressed, causing the car to think you are still pressing the gas pedal. This will not set a check engine light, and accidents look like driver error, so that is why it has been hard to diagnose. The floormat entrapment is a completely different issue, which Toyota is taking the liberty of modifying their cars to be safe when customers use incorrect floormats that will slide up and cover the pedals. You have a 1 in 8,000 chance every year of being in a fatal car accident, no matter what you drive. If you drive a recalled Toyota, you have a 1 in 200,000 chance of your pedal causing a problem.
February 16, 2010 11:57 am
 9TNine 9TNine
Is "Exponent" qualified to do this job? Independent? So they're doing it for free are they?
February 15, 2010 10:06 pm
 BeEmWe BeEmWe
I live in Abu Dhabi and used to drive a Camry. I once faced this sudden acceleration issue. I was approaching a traffic light and removed my foot from the pedal, but the car continued accelerating. I managed to pull the floor mat back and brake before getting in the crossroad. I was scared to death. I switched the car for an Accord, only to find that it was vulnerable to the same problem. The mats in Japanese cars are not properly secured (and I have driven several cars by Nissan, Toyota, Honda, Mazda and Mitsubishi).
February 16, 2010 1:51 am
 Iconic Iconic
Ok dude, I've seen those crazy youtube videos of you guys drifting front wheel drive japanese cars through traffic. Don't blame the floor mats.
February 16, 2010 2:44 pm
 BeEmWe BeEmWe
@ iconic: Fortunately, I've never had an accident of any sort. And what I talk about happened before any of this floor mat propaganda had even started. Nevertheles, I gave up on front wheel drive altogether! Not for this reason, but for those abvious to driving enthusiasts. Cheers!
February 17, 2010 4:12 am
 tbrodie tbrodie
There was a guy on Nightline whose Avalon started to accelerate. He called his dealer while in the car and intermittently shifted to neutral to control the car. The service manager met the man and his smoking Avalon in the parking lot. I doubt this is just due to floormats.
February 16, 2010 5:38 am
 BeEmWe BeEmWe
Well I can only tell you about my own experience. That doesn't rule out other faults!
February 16, 2010 6:09 am
 Dolomight 74-86 Dolomight 74-86
Smart guy. If more people had the reflex to put their cars in neutral I'm sure that their would be quite a few less fatalities.
February 16, 2010 8:53 pm
 nag nag
We haven't had any recalls here in KSA plus they are increasing prices the camry starts from 25K$ lexuses prices are more expensive than audies!!
February 16, 2010 8:26 am
 Sultan91 Sultan91
yes it is true naq... the arabian gulf dealers are increasing the price of all of the japanese cars ( especially toyota and lexus) since they know the demand for these cars is high and the community will pay anythng just to get a reliable, simple toyota
February 19, 2010 12:01 am