A Washington panel was told by Toyota Motor Corp. chief engineer Takeshi Uchiyamada that the automaker found no electronic causes for sudden acceleration problems.

The Los Angeles Times reported on Tuesday that Uchiyamada told members of the Senate Committee on Commerce, Energy and Transportation," I want to be absolutely clear,", "as a result of extensive testing, we do not believe sudden unintended acceleration" was caused by "defect" in electronic throttle control systems.

In earlier testimony, U. S. Department of Transportation Secretary Ray LaHood said the Obama administration is considering a law mandating brake override systems in every car.

LaHood told members of the Senate Committee on Commerce, Energy and Transportation, which is investigating two Toyota Motor Corp. recalls concerning loss of speed control in vehicles "We think it is a good safety device, and we're trying to figure out if we should be recommending it."

The New York Times reported on Tuesday that the systems that deactivate the accelerator when the brakes are pressed are already installed in many cars. Toyota has begun installing the systems in Camry, Lexus and Avalon cars and said last week it would install override systems in Tacomas, Venzas and Sequoias. (With input from agencies)