Tl* the contact owns a 1999 volvo s70. the contact stated that the vehicle experienced unintended acceleration. in addition, all the lighting and warning indicators illuminated. the dealer could not duplicate the failure. the vehicle was taken to an independent mechanic where it was diagnosed that the vehicle speed signal and throttle body control module were defective and needed to be replaced. the manufacturer was not notified. the failure mileage was approximately 120,000.