Witnesses: Toyota problems could be electronics

Witnesses at the first of three Congressional hearings on Toyota’s recall problems testified that they believe they have found a possible additional cause of unintended acceleration in Toyotas, one that has to do with the vehicles’ electronic throttle control systems.

David Gilbert, a professor of automotive technology at Southern Illinois University, said he had uncovered a potential for a short circuit that could undermine the car’s built in safety checks.

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