2002 LEXUS MALFUNCTIONING BRAKE SYSTEM. *MR THE ENGINE SURGED WHILE BRAKING. IT WAS INDICATED THAT THIS MAY BE DUE TO AN INCREASE IN IDLING SPEED WHEN THE A/C WAS OPERATING. ON ONE OCCASION THE VEHICLE CONTINUED TO MOVE ALTHOUGH THE CONSUMER APPLIED EXTREME PRESSURE ON THE BRAKE PEDAL. *SCC *NLM