Then I guess my voltmeter is wrong.
P.S. Like I said both of my ES's and every Lexus car I've checked at idle, with NO load(lights, radio, etc.), put out at least 14.4 volts! This was checked with a highly accurate VOM. In fact my wifes 2001 Toyota Corolla had a similar voltage!
Look at the specs in the shop manual before you post. <_<